Showing 128 events within 100 km in the next 365 days. Page 3 of 7.
Mighty Dog 5K & 10K Trail Runs
Granite Beach, Folsom Lake SRA
The Mighty Dog Trail Runs are in their 12th year in 2027. The event offers two distances: 5K & 10K - both for walkers, runners, and their dogs! We are excited to offer this event for athletes and their dogs and hope everyone has a fun time. Back in 2027: The Mighty Mile run for your Senior Dog.
Event details and schedule
Mighty Dog 5K & 10K Trail Runs
Granite Beach, Folsom Lake SRA
The Mighty Dog 5K & 10K races will start from Granite Beach parking area at Folsom Lake SRA. The 5K course will have one aid station at the half way point with water for both walkers and their dogs.
Back this year is the Mighty Mile. A one-mile dog freindly course for walkers and runners to bring their dear old friend along.
All Mighty Dog athletes will recieve a Mighty Dog Finisher Medal, and their dog a Mighty Dog Finisher Bandana at the finish line. Additional dogs can be signed up to accompany the walker and dog #1 for a fee of $10 per dog. Each additional dog will receive a Finisher Bandana.
Athletes and their dogs MUST run safely and without entangling other dogs. The course will have one aid station at the half way point for both walkers and their dogs.
Commemorative Mighty Dog race shirts are available for $20.
Awards will be presented as follows:
First, second, and third place in each of three divisions for the Mighty Dog 5K & 10K Run:
Small Dog (up to 25 lbs), Medium Dog (26 to 60 lbs) and Large Dog (61 lbs+) will each receive an award. There will also be awards for top Runners with no dogs in the 5K and 10K. No Awards for the Mighty Dog Mile.
Race fees increase on race day.
Event Schedule:
Registration opens - 7 a.m.
The Mighty Dog 10K Run - 8:00 a.m.
The Mighty Dog 5K - 8:10 a.m.
The Mighty Mile - 8:15 a.m.
Refund and Transfer Information
TBF Racing has a No Refund policy on all of our events. A Refund requested prior to race week will be given a TBF Race credit for the amount of the entry fee minus a $25 processing fee. Credits are not given during race week. Race transfers are allowed from one TBF Racing event to another within a one-year time frame. There is a $25 transfer fee.
Race for FREE Information
Our Race for FREE Athlete Volunteer Program offers a chance to get involved with multi-sport events, have fun, and earn a $50 TBF Racing Volunteer voucher good towards entry fees at any of our events this year. Each volunteer shift is 4 hours. We ask volunteers to reserve a volunteer position at any of our events by emailing [email protected] as our volunteer positions will fill up quickly.
MTB Championship - Cross Country MTB Racing
The MTB Championship is the final Race of the six MTB Races we have in our Spring MTB Series. Each race will feature a unique course, with safe and well marked trails, held at beautiful Granite Beach, Folsom Lake SRA.
Back in 2027: E-Bike division.
Event details and schedule
MTB Championship - Cross Country Mountain Bike Racing
Granite Beach, Folsom Lake SRA
The MTB Championship is the final Race of our six-race Spring MTB Series and will feature a 7-mile lap course. Included for each athlete in the MTB Championship is a custom TBF/MTB Hat, a chance at Division Awards, and a hot post-race meal.
Packet Pick Up Information
Race packets will be available race morning from 7 am at the race site. Registration prices increase on Race Day.
DISTANCES:
Junior (14-under): 1 lap 7 miles | Novice/Clydesdale (over 225 lbs)/Novice HS (High School Riders): 1 laps 7 miles | Junior Elite (14-under)/E-Bike, Sport/Sport HS/Sport Single-Speed: 2 laps 14 miles| Expert/SS Expert/Pro: 3 laps 21 miles.
DIVISIONS same for Men and Women
Pro: one division
Novice, Sport and Expert Divisions: 29 & under, 30-39, 40-49, 50-59 and 60+.
Single Speed Divisions: Open (39-under) and Masters (40+over)
Clydesdale (Men only): one division (220lb+)
E-Bike: one divison (male, female)
Beginner: one division
Junior Divisions: 13-14, 11-12, 10 & under
High School
TBF MTB Race Series Placement and Awards
Points will be awarded to each rider placing in their division in one of the six MTB Races that are part of our 2027 MTB Series. The rider with the most points that finishes in five of the six events; including the Championship Race on March 21st, in each division will be the Series Champion. In the case of ties, the rider that finished with the most first, second, or third place finishes will receive the Championship award. If points are still tied, the final race finish will determine Championship.
Start Times for MTB Throwdown on March 21st.
Pro, Experts, HS Experts, SS Experts - 8 a.m.
Novice, HS Novice, Clydesdale - 9 a.m.
E-Bike, Junior Elite, Sport, HS Sport, Single Speed - 10 a.m.
Juniors - 11 a.m.
Our Race for FREE Athlete Volunteer Program offers a chance to get involved with multi-sport events, have fun, and earn a $50 TBF Racing Volunteer voucher good towards entry fees at any of our events this year. Each volunteer shift is 4 hours. We ask volunteers to reserve a volunteer position at any of our events by emailing [email protected] as our volunteer positions will fill up quickly.
Refund and Transfer Information
TBF Racing has a No Refund policy on all of our events. A Refund requested prior to race week will be given a TBF Race credit for the amount of the entry fee minus a $25 processing fee. Credits are not given during race week. Transfers are allowed from one TBF Racing event to another within a one-year time frame. There is a $25 transfer fee. Transfers are not allowed during race week. ALL TBF Racing events are held Rain or Shine.
TBF MTB Clinics
The TBF MTB Clinic is for all levels of riders and includes professional MTB coaching, drills & skills clinic, dirt-crit practice race, fun group trail ride, and refreshments. Find out more info at www.tbftraining.com.
Friends of TBF Racing:
TBF Racing is proud to sponsor and promote Mountain Biking on a local level with our support of the following organizations:
FATRAC: Folsom-Auburn Trail Riders Action Coalition www.fatrac.org
Sierra Buttes Trail Stewardship: www.sierratrails.org
Folsom Lake SRA: Folsom Lake State Recreation Area www.parks.ca.gov/?page_id=25226
ICE Breaker Triathlon
The ICE Breaker Triathlon was first held in 2000 as part of the TBF Training Triathlon Class. In 2002 the event was opened to the public and is now in its 25th year and is known as the best way to start your Triathlon racing season!
Event details and schedule
ICE Breaker Triathlon
Granite Beach, Folsom Lake SRA
The Swim for the ICE Breaker Triathlon and ICE Breaker Dash Triathlon will both take place at Folsom Lake. The run courses for the ICE Breaker Triathlons will be a scenic and enjoyable along the beautiful shoreline of Folsom Lake. The Ice Breaker Dash is a super sprint course perfect for first-timers.
Included for each athlete is a swim cap, hot post race meal, a pair of ICE Breaker Triathlon socks, and an ICE Breaker Triathlon Finisher Hat.
Distances
ICE Breaker Triathlon - .5 mile swim-10 mile bike-4 mile run
ICE Breaker Aquabike - .5 mile swim-10 mile bike
ICE Breaker Dash Triathlon - 400 yards swim-5 mile bike-2 mile run
ICE Breaker Swim - .5 mile
Relay Teams
Relay Teams consist of one swimmer, one cyclist and one runner. Entry fee includes three goody bags and post race meals. Awards will be first overall in Male, Female and Coed divisions for ICE Breaker Triathlon only.
Packet Pick Up Information
Race packets will be available race morning from 6:30 am to 9 am at the race site.
Race Day Schedule
6:00 Registration/Packet Pick up opens
6:30 Race announcements begin
8:00 a.m. Start of ICE Breaker Dash Triathlon
9:00 a.m. Start of ICE Breaker Triathlon & Aquabike
Waves to be announced.
Refund and Transfer Information
TBF Racing has a No Refund policy on all of our events. A Refund requested prior to race week will be given a TBF Race credit for the amount of the entry fee minus a $25 processing fee. Credits are not given during race week. Transfers are allowed from one TBF Racing event to another within a one-year time frame. There is a $25 transfer fee. Transfers are not allowed during race week. ALL TBF Racing events are held Rain or Shine.
Race for FREE Information
Our Race for FREE Athlete Volunteer Program offers a chance to get involved with multi-sport events, have fun, and earn a $50 TBF Racing Volunteer voucher good towards entry fees at any of our events this year. Each volunteer shift is 4 hours. We ask volunteers to reserve a volunteer position at any of our events by emailing: [email protected] as our volunteer positions will fill up quickly.
Folsom Lake International Triathlon
The Folsom Lake International Triathlon started in 2012. The 2027 event will be limited to 300 athletes.
Event details and schedule
Folsom Lake International Triathlon
Granite Beach, Folsom Lake
The Folsom Lake International Triathlon is in its 15th year. The race is at beautiful Granite Beach, Folsom Lake, featuring a lake swim, scenic road bike on country roads and a beautiful trail run.
The Olympic-distance Triathlon and Aquabike are sanctioned by USA Triathlon, requiring an annual or one-day license with USAT. Included for each competitor is a pair of custom TBF socks, a swim cap, post race refreshments and a Folsom Lake Triathlon Finishers Hat.
Commemorative Folsom Lake International Triathlon race t-shirts are available for $20 when ordered before May 2nd.
First place Male and Female in the Folsom Lake International Triathlon will receive Overall Champion Awards. There will be awards three deep in each five-year age group and Relay Team awards for the Top team in each Division of Male, Female and Coed.
The Aqua-Bike will have awards for the top three male and female overall finishers.
Distances
Folsom Lake International Triathlon - 1.5K swim-40K bike-10K run.
Aqua-Bike - 1.5K swim-40K bike.
Relay Teams
Relay Teams awards will be for top three in male, female and coed divisions.
Packet Pick Up Information
Packet Pick-up for the Folsom Lake International Triathlon is race morning at the race venue from 6 a.m. until 8 a.m.
Start Times:
Folsom Lake Olympic-distance Triathlon - 8 a.m. with waves to be announced.
Race for FREE Information
Our Race for FREE Athlete Volunteer Program offers a chance to get involved with multi-sport events, have fun, and earn a $50 TBF Racing Volunteer voucher good towards entry fees at any of our events this year. Each volunteer shift is 4 hours. We ask volunteers to reserve a volunteer position at any of our events by emailing [email protected] as our volunteer positions will fill up quickly.
Find out more info at www.tbftraining.com about the TBF Open Water Swim Class offered by TBF Training or email [email protected] with your training questions.
Refund and Transfer Information
TBF Racing has a No Refund policy on all of our events. A Refund requested prior to race week will be given a TBF Race credit for the amount of the entry fee minus a $25 processing fee. Credits are not given during race week. Race transfers are allowed from one TBF Racing event to another within a one-year time frame. There is a $25 transfer fee. Participant transfers are allowed for this event, with a $25 fee. Transfers are not allowed during race week. ALL TBF Racing events are held Rain or Shine.
We hope you enjoy the race and would appreciate any input, comments or suggestions you may have afterwards.
The Folsom Lake Triathlons
The Folsom Lake Sprint and Super Sprint Triathlons are at Granite Beach, Folsom Lake offering a lake swim, scenic bike courses closed to traffic, and trail runs along the lake.
Event details and schedule
Folsom Lake Triathlons
Granite Beach, Folsom Lake
The Folsom Lake Sprint and Super Sprint Triathlons take place at beautiful Granite Beach, Folsom Lake, each featuring a lake swim, scenic road bike on country roads and a beautiful trail run.
Included for each competitor in the the Sprint and Super Sprint distance Triathlons is a swim cap, post race refreshments, pair of TBF Racing socks and a custom Folsom Lake Triathlon Finisher Hat.
Commemorative Folsom Lake Triathlon race t-shirts are available for $20 when ordered before May 2nd.
First place Male and Female in the Folsom Lake Sprint and Super Sprint Triathlon will receive Overall Champion Awards. There will be awards thee deep in each ten-year age group for both races, and Relay Team awards for the Top team in each Division of Male, Female and Coed for the Sprint Triathlon.
Distances
Folsom Lake Super Sprint Triathlon - 400 yard swim-5 mile bike-2 mile run.
Folsom Lake Sprint Triathlon - 1/2 mile swim-10 mile bike-3 mile run.
Relay Teams
Relay Teams awards will be for top three in male, female and coed divisions for the Folsom Lake Sprint Triathlon.
Packet Pick Up Information
Packet Pick-up for the Sprint & Super Sprint Triathlons will be on race morning at the race venue from 6:30 a.m. until 9 a.m.
Start Times:
Folsom Lake Super Sprint Triathlon - 8 a.m. with waves to be announced.
Folsom Lake Sprint Triathlon - 9 a.m. with waves to be announced.
Transition Area
The Transition area will be on a first-come basis, with the exception of Reserved Bike Racks for TRI Clubs. The transition area at all TBF Racing events is for athletes only. All non-athletes must remain outside of the transition area at all times on race day. Bodymarking will be take place at the entrance to the transition area and must be completed before you enter the transition area. Athletes will have their race number marked on their legs and arms and have their age division on their calf. Glass or bottles are not allowed in the transition area.
Race for FREE Information
Our Race for FREE Athlete Volunteer Program offers a chance to get involved with multi-sport events, have fun, and earn a $50 TBF Racing Volunteer voucher good towards entry fees at any of our events this year. Each volunteer shift is 4 hours. We ask volunteers to reserve a volunteer position at any of our events by emailing: [email protected] as our volunteer positions will fill up quickly.
Refund and Transfer Information
TBF Racing has a No Refund policy on all of our events. A Refund requested prior to race week will be given a TBF Race credit for the amount of the entry fee minus a $25 processing fee. Credits are not given during race week. Race transfers are allowed from one TBF Racing event to another within a one-year time frame. There is a $25 transfer fee. Participant transfers are allowed for this event, with a $25 fee. Transfers are not allowed during race week. ALL TBF Racing events are held Rain or Shine.
We hope you enjoy the race and would appreciate any input, comments or suggestions you may have afterwards.
Race fees increase on race day.
April 3, 2027
Folsom to Auburn
Welcome to the legendary and historic American River 50 Mile Endurance Run, one of the oldest and most revered ultra races in the country. For decades, this race has tested the strength, endurance, and spirit of runners as they tackle a breathtaking journey from the heart of Sacramento to the rugged trails of Auburn, following the beautiful American River Parkway and offering iconic views of Northern California.
If you're not quite ready for the full 50 miles, the American River 25 Mile and 10 Mile distances offer a fantastic way to experience the race's unique atmosphere and scenic routes. Both shorter distances provide a rewarding challenge while allowing runners to enjoy the same stunning landscapes and supportive trail community that make the American River races so special. Whether you're aiming for a new distance or looking for an introduction to endurance running, these races deliver the perfect balance of excitement, beauty, and camaraderie.
Entry includes
NorCalUltras Goody Swag Bag 👜
Technical Race Shirt 👕
Hand Crafted Finisher Medallion 🏅
Neversecond Gels on Course 🍭
Skratch Hydration on Course 🥤
Professional Timing and Results 🔍
Post Race Party 🎉
Nadia's Mac Shack 🍝
Beverages and Beer Garden for those 21 and Over 🍻
Please visit the American River 50 website for detailed race information along with lodging opportunities in our host City of Folsom.
We look forward to seeing you on April 3rd!
The NorCalUltra Team
Join the Ultimate Loop Adventure in the Heart of Trail Country!
Mile Madness is more than a race—it's a vibrant celebration of endurance, community, and personal triumph. Set against the stunning backdrop of Auburn, California, this looped trail event invites runners of all paces to push their limits (or simply enjoy the journey) on a meticulously designed 1-mile course, mainly paved bike path, blending a beautiful pond, shaded paths, and much more for an unforgettable experience.
Event Details:
Dates: September 18-21, 2026
Friday:
9:00 am 72 Hour Run and 72 Hour Team Relay
6:00 pm: 48 Hour Run and 48 Hour Team Relay
Saturday:
9:00 am 100 Mile Race
Noon: 12 Hour and 24 Hour
6:00 pm: 6 Hour Glow Run
Location: Regional Park, 3770 Richardson Dr, Auburn, CA 95602
Race Options: Choose your challenge from 8 timed events, ranging from a beginner-friendly 6-hour run to the epic 72-hour ultra. With exceptionally long cutoffs and no strict time pressures, whether you're walking, running, or crawling, there's space for everyone to shine and even earn one of the coveted Mile Madness Buckles.
Course Highlights: A compact 0.85 mile loop means continuous laps with easy access to aid stations, festive decorations, and upbeat music to keep your spirits high. Aim for that first ultra milestone or chase elite goals—many of our runners discover untapped potential here. The course will be professionally measured prior to the race.
Why Mile Madness?
Inclusivity for All: We had runners from ages 10 to 82, with a balanced mix of 52.8% male and 47.2% female participants. In 2024, we welcomed 115 runners with a remarkable 72% buckle completion rate (applies to 48- and 72-hour runners); 2025 was 140 strong, and we're projecting 200-250 for 2026. Beginners who've never run an ultramarathon often surprise themselves with distances they never imagined.
Top-Notch Support: Fully stocked aid station featuring a rotating menu of hearty meals, electrolytes, all the typical aid station food, and endless encouragement from what might be the best volunteers in trail running. Other amenities include on-site massage therapists, family cheer zones, glow run, food trucks, and more...
Bling & Bragging Rights: Earn the coveted Silver 100-Mile Buckle (35 awarded in 2024, many to first timers!) or challenge yourself for the stunning Gold 150-Mile Buckle or the brand new 200-Mile buckle. Plus, a 100% rollover policy up to 24 hours before race start means zero risk if life throws a curveball.
SWAG: Every registered runner will get a race shirt or jacket. Our current plan is to provide gender-specific, packable, puffy jackets. We cannot guarantee sizes for registrations after 9/1/26, but we will do our best to accommodate requests. All runners will also get additional SWAG that will be announced closer to race weekend.
Bib Raffle: We will hold a bib raffle at regular intervals during the race. Registered runners will be entered into the raffle. It's a bonus: you might walk away with fantastic prizes, including shoes, handheld bottles, an antichafe stick, and more. Why should podium winners get all the bling?
Family & Community Focus: Bring your crew! Our expansive 20x30 Cheer Zone offers shaded comfort, music, free snacks and water, games, festive decorations, S’mores, and a DIY sign-making station to fuel the fun. Come solo or with friends—you'll leave with new bonds, shared stories, and memories that last a lifetime. Runners rave: "The highlight of my year!" (Summer W.) and "My favorite race ever!" (Shawnee).
Worry-Free Guarantee: We will roll over your race entry to the next year if you can't run due to injury or training challenges. We want you to enjoy the race you pay for, and we understand that life happens.
Extra Perks: Plenty of clean restrooms, and a commitment to giving back through the Run Free Foundation, whose mission is to empower at-risk youth and runners facing financial barriers by providing access to quality running gear and race registration scholarships, enabling them to pursue their athletic dreams and enhance their well-being.
Mile Madness isn't just about the miles—it's about the madness of joy, grit, and connection that turns strangers into trail family. Whether you're chasing a PR, your first buckle, or just the thrill of the loop, we're here to support you through every step. We may have the best volunteers in the business.
Relay Option: We have a 72-Hour Relay and 48-Hour Relay
Each relay team can have 4-10 runners. Each runner will register and pay a separate registration fee (which covers food, SWAG, and more) and select their relay team. Each team will share a single team bib with one runner at a time on the course. Other team members can use a Pacer bib to support their team member running with the team bib.
Podium awards will go to the top three teams.
Relay runners are not eligible to earn a 100-mile buckle (relay laps should be shared somewhat evenly between team members, so achieving 100 miles per runner is unlikely).
Ultra Lounge: The family cheer zone is getting a more fitting name. We are borrowing the Ultra Lounge name and will have our 13x26 wedding tent with fun activities that will keep your crew going so they can keep cheering you on. We will have food and water, a poster-making station, a glow party, cornhole, and more...
Referral Rewards: We want to reward you for referring other runners to Mile Madness. When you register, you will get a referral code to share. Have your family, friends, or social circle use that code, and you will receive a refund for every referral.
Earn $10 for any 6-Hour or 12-Hour referral. Earn $20 for each referral to the 24-Hour or longer races. The refund will happen automatically, and the referral code must be used by the person registering.
Questions? Email Race Director Brian Goldman at [email protected]. Let's make 2026 your most memorable madness yet!
About The NorCal Backyard Ultra returns October 23 & 24, 2026, bringing runners back to the familiar trails around Folsom Lake for another test of endurance and resolve. Each lap begins the same, but how far you go depends entirely on you!Two events make up the weekend. The Last Person Standing begins at 5:00 PM on Friday, October 23rd. Runners must complete a 4.16 mile loop every hour, on the hour, until only one runner remains. The Mini Last Person Standing starts at 7:00 AM on Saturday, October 24th, and runs for up to 12 hours, allowing participants to cover as many as 50 miles.Prize money will again be awarded: $400 to the Last Person Standing, $200 to the Assist (second place), and $100 to the Last Female Standing. The 12 hour Mini event offers a reduced entry fee for runners who want the backyard experience without the overnight hours.Whether you’re chasing distance, competition, or discovery, the NorCal Backyard Ultra offers a chance to test limits in a supportive and focused
environment. Format At the start of each hour, runners begin a 4.16 mile lap and must finish it before the next hour begins. Failing to be at the start line when the next lap begins ends your race. The event continues until one runner completes a lap within the hour and no other runners remain.The planned course will feature roughly equal parts road and smooth trail around Folsom Lake. Due to ongoing construction, the final route and elevation profile will be confirmed closer to race day.Runners seeking the full backyard experience or goals such as 100K or 100 miles+ should register for the Last Person Standing event. Those looking for a contained challenge can join the 12 hour Mini event, which is limited to 50 miles.The rules are simple. The challenge is not. The "Mini" If you want to experience the Last Person Standing format but prefer a more approachable distance, all within the daylight, then the Mini is for you. Designed for runners aiming for 12 to 50 miles, this event follows the
same 4.2-mile loop every hour format but ends after 12 hours or 50 miles, whichever comes first.The Mini starts on Saturday October 24th at 7:00AM, with the same format and course as the Last Person Standing Event. Equipment Rental If you're traveling to the race or don't already own equipment, you may rent a 6' table for $50 (taxes not included) or a 10'x10' tent, 6' table, & chair package for $140 (taxes not included)* from us. Rentals are first come first serve and will be available for pickup on race weekend. *Damage, lost, or stolen equipment may incur an additional fee. Awards All participants in both events will receive a NorCal BackYard Ultra quarter zip and a handcrafted wooden finisher award based on the distance completed. Distance categories include 13 miles, 50 kilometers, 50 miles, 100 kilometers, and 100 miles. Runners who complete 100 miles or more will also receive a bronze finisher belt buckle. • $400 to the Last Person Standing • $100 to the Assist (2nd Place) • $100 to
the Last Female Standing (may be combined with the above awards) Aid Stations There are no "on course" aid stations but there will be a fully stocked aid stations at Beals Point for runners to use. Additionally, all runners will be given a parking spot near the start / finish line and may utilize the grassy area near the start line to serve as a personal aid station area. The Unity Initiative In response to recent federal aid cuts, The Unity Initiative was created to support vital nonprofits that serve our communities. By donating to one of our partner organizations, participants can receive a future race discount and have their donation matched — up to $40 or 25% of their registration fee. This program aims to restore a sense of unity and compassion, ensuring local organizations continue to thrive despite reduced government support. Together, we can keep our communities strong.Selected Nonprofit Partners:- Placer Food Bank- Sacramento Food Bank- Court Appointed Special Advocates for
Children of Sacramento (CASA)- Court Appointed Special Advocates for Children of Placer County (CASA)- AcademySTAY- Sierra Club of California- Placer Land Trust- American Civil Liberties Union*Future discounts will be sent upon receipt of proof of donation. Please email donation receipts to [email protected]. Donations must be made in 2025 and prior to event date(s). Event's current local time: 1:53 AM PT
About Rubicon noun A limit that when passed or exceeded permits of no return.The Rubicon is a very difficult and remote on and off-trail foot race in the backcountry of the northwestern Sierra Nevada, and its undertaking should not be taken lightly. Make no mistake - this endeavor will test your limits!Disclaimer: This is not an official event. This is a fatass; a glorified group run. There will be no course markings, no aid stations, no staff, and no medical team.The route options are as follows:The Requisite: 15+ miles, ≈6,700 ft of gain, 3 hill climbs, & 2 water crossingsThe Resonant: 30+ miles, ≈12,700 ft of gain, 6 hill climbs, & 6 water crossingsThe Revenant: 43+ miles, ≈19,300 ft of gain, 8 hill climbs, & 8 water crossingsYou must first complete The Requisite in order to be eligible for an attempt of The Resonant in the future.You must first complete The Resonant in order to be eligible for an attempt of The Revenant in the future.More info can be found here.For updates, please join
the Facebook group.Scheduling: The Rubicon will fall on the 4th Saturday of October when there are 5 Saturdays in the month. When there are 4, it will move to the 1st Saturday to avoid conflict with Hilloween. Event's current local time: 1:55 AM PT
The Jewel of the Sierra Nevada
November 7-8, 2026
Welcome to the 2026 Rio Del Lago Endurance Runs Presented by Altra!
🎉 Celebrating 25 Years of the Rio 100 & 5 Years of the Rio 50K!
The celebration is on! The Rio Del Lago Endurance Runs presented by Altra return on November 7, 2026, marking the 25th anniversary of the legendary Rio 100 Mile Endurance Run and the 5th running of the fan-favorite Rio 50K.
Whether this is your first Rio or your twenty-fifth, we’re doing cartwheels to welcome you to this milestone year. Together, we’ll honor a quarter century of endurance, community, and trail magic on one of Northern California’s most iconic courses.
🌄 About the Races
Rio 100 Mile Endurance Run presented by Altra
A true test of grit, determination, and heart. The Rio 100 takes runners on a breathtaking journey from Folsom to Auburn and back, showcasing miles of rolling singletrack, river views, and the rugged beauty of the Sierra foothills.
Rio 50K Endurance Run presented by Altra
Now in its 5th year, the Rio 50K starts alongside the 100 milers at Beal’s Point and follows the scenic early miles of the course. With stunning views along Folsom Lake, Lake Natoma, and the infamous Johnny Cash Trail, it’s the perfect distance for your first ultra or your fastest 50K yet!
🌟 A Milestone Year — A Legendary Experience
As we celebrate 25 years of Rio, expect an unforgettable weekend filled with tradition, camaraderie, and celebration. From world-class race organization and well-stocked aid stations to the warmth of our incredible volunteers, this year’s event will capture everything that makes Rio Del Lago truly special.
🎽 All Entries Include:
NorCalUltras Goody Swag Bag
Commemorative 25th Anniversary Technical Race Shirt
Finisher Medallion
100 Mile Finisher Belt Buckle (sub-30-hour finishers)
100 Mile Finisher Athleisure Lightweight Pullover
Neversecond Gels on Course
Skratch Hydration on Course
B-Tag Chip Timing
Bob and Brandt's Breakfast Bistro
Chef Tim’s “Soup for the Soul”
Beer Garden
🏕️ Plan Your Race Weekend
Visit our official website for detailed race information, course maps, and lodging options in our host city of Folsom, California.
💛 Join the Celebration
Be part of history as we honor 25 years of the Rio 100 and 5 years of the Rio 50K — a milestone weekend filled with tradition, community, and endurance.
25 Years Strong. 25 Years of Grit. 25 Years of Rio.
We can’t wait to celebrate this special year with you on the trails!
– The NorCalUltras Team
DESCRIPTION:
A FAMILY-FRIENDLY, ALL-COMERS 3-KILOMETER (1.86 MILE) FUN RUN AND WALK THAT STARTS ON WELLINGTON WAY NEAR THE GRANITE BAY HIGH SCHOOL PARKING LOT, AND VENTURES ALONG EAST ROSEVILLE PARKWAY, TRAVELS DOWN HILLSBOROUGH DRIVE, AND VENTURES BACK ALONG THE PEDESTRIAN SIDEWALKS OF EUREKA ROAD AND FINISHES IN FRONT OF GRANITE BAY HIGH SCHOOL ON WELLINGTON WAY.
6k course does 2 loops of the 3k course -- reversing course and doing it backwards!!!
3k: Clockwise
6k: Clockwise, then Counter-Clockwise
Date:
Thursday, November 26th, 2026
Time:
7:30am - 6k
8:00am - 3k
Location:
Wellington Way, in front of
Granite Bay High School,
#1 Grizzly Way,
Granite Bay, CA 95746
Parking:
GBHS Parking lot, or on the street along Wellington Way
Cost:
$35.00 early bird 07/31/2026-09/30/2026
$45.00 regular 10/01-10/31
$50.00 late 11/01-11/25
No Race Day Registration!
No Refunds unless extenuating circumstances (email me a love letter for refund consideration).
Additional online processing fee
bib, t-shirt, medal, CHIP timing, post-race snacks, and water and age group awards!
Course:
Starts on Wellington Way in front of Granite Bay High School, and follows a 1.86 mile, 3 kilometer clock-wise loop traveling along the pedestrian sidewalks only along East Roseville Parkway, Hillsborough Drive, Eureka Road, and back to Wellington Way. Course will be lightly traffic controlled by CHP and/or PCSO.
6k course does 2 loops of the 3k course -- reversing course and doing it backwards!!!
3k: Clockwise
6k: Clockwise, then Counter-Clockwise
Packet Pick-Up:
Granite Bay Public Library,
Wednesday, November 25th 2026
11am-6pm
Beneficiary:
Fieldhaven Feline Center, Lincoln
To Volunteer:
e-mail [email protected]
About the Race This event is held at the Sly Park Recreation Area in Pollock Pines, and it’s held under special use permit with the El Dorado National Forest. The course follows the trails surrounding Jenkinson Lake through endless pine trees and buttery horse trails. This race is held three times a year to offer runners the experience of running in this beautiful park through different seasons. Course Information Address:Sly Park Recreation Area - Group Area 2 Camp Site4771 Sly Park RoadPollock Pines, CA Schedule:6:45 AM – Event Center Opens7:00 AM – Check-in and Registration Opens7:45 AM – Trail Briefing8:00 AM – Start Time – All Distances.9 Hour Time Limit. Race officially over at 5:00 PMCourse Maps:5k -https://www.plotaroute.com/route/173044510k -https://www.plotaroute.com/route/17304488 Mile -https://www.plotaroute.com/route/1730453Half Marathon -https://www.plotaroute.com/route/173045417 Mile -https://www.plotaroute.com/route/1730459Trail Marathon
-https://www.plotaroute.com/route/173093450k -https://www.plotaroute.com/route/1730944Bib Pick-Up/Registration will take place on race day. Race day registration available.Detailed course descriptions and maps are available at the following link:https://tctruns.com/trailrunatslypark_fall/Additional Information:Courses will be marked with ribbons, signs & gypsum.Please dress appropriately for an endurance run.All finishers will receive a commemorative medal.Aid stations will be available.Please do not hesitate to e-mail us at [email protected] if you have any questions. Event's current local time: 1:53 AM PT
About the Race This event is held at the Sly Park Recreation Area in Pollock Pines, and it’s held under special use permit with the El Dorado National Forest. The course follows the trails surrounding Jenkinson Lake through endless pine trees and buttery horse trails. This race is held three times a year to offer runners the experience of running in this beautiful park through different seasons. Course Information Address:Sly Park Recreation Area - Scales (Equestrian Staging Area)Google Map Directions: 38.712489, -120.553411 (https://maps.app.goo.gl/CmM73xQJ3gnMPiYm7)Pollock Pines, CASchedule of Events:6:45 AM – Event Center Opens7:00 AM – Check-in and Registration Opens7:45 AM – Trail Briefing8:00 AM – Start Time – All Distances.Course Maps:5k - https://www.plotaroute.com/route/2610366 10k - https://www.plotaroute.com/route/2610374 8 Mile - https://www.plotaroute.com/route/2610378 Half Marathon - https://www.plotaroute.com/route/261039017 Mile - https://www.plotaroute.com/route/2610395
Trail Marathon - https://www.plotaroute.com/route/2610412 50k - https://www.plotaroute.com/route/2610415 Bib Pick-Up/Registration will take place on race day. Race day registration available.Detailed course descriptions and maps are available at the following link:https://tctruns.com/trailrunatslypark_summer/Additional Information:Courses will be marked with ribbons, signs & gypsum.Please dress appropriately for an endurance run.All finishers will receive a commemorative medal.Aid stations will be available.Please do not hesitate to email us at [email protected] if you have any questions. Event's current local time: 1:17 AM PT
The Santa Hustle Race Series is more than just a run—it’s a magical holiday experience filled with festive fun, Christmas cheer, and a whole lot of Santa spirit! Runners of all ages and abilities are invited to join this winter wonderland race, featuring a scenic course, holiday music, and sweet treats like candy canes and cookies along the way. Every participant receives a Santa hat, beard, and a cozy themed sweatshirt to complete their jolly look. Whether you're dashing through the snow for a PR or just in it for the holiday vibes, the Santa Hustle is the perfect way to celebrate the season with family, friends, and fellow festive runners!
The Santa Hustle® Race Series includes events in cities such as Chicago, IL; Detroit, MI; Nashville, TN; Indianapolis, IN; Milwaukee, WI; San Antonio, TX; Galveston, TX; Roseville, CA; Glendale, AZ; Athens, GA; Orlando, FL; and virtually! We’re also adding new cities in 2025, so stay tuned! Join thousands of Santa's running across the nation!
Join us as we have fun raising funds in support of the bleeding disorders community!
Featuring:
Vampire Run 5K – join us at our first ever 5K on the trails of Roseville, CA! All runners will get a special Vampire Run medal and entry into our Community Festival. We encourage capes, teeth, and costumes! Entry fees are $30 for adults and $10 for those under 14. Five and under can enter the festival for free. This is a timed run.
Food – all entrants will receive coffee from a coffee cart, juice, donuts, and other snacks! Who could pass up sno-cones and popcorn?
Games and Fun! – join us for carnival games, crafts, and face painting…all included in the race fee!
Schedule of Events:
8:30 5K starts
9:00 Carnival and booths open
11:00 Bleeding Disorders Remembrance Ceremony
11:15 1 Mile Walk
12:00 Carnival closes