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15 events in Saint Louis County, Missouri

From big races to Saturday morning group runs—find running, cycling, triathlon, and swimming events and connect with the local endurance sports community.

15 events
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Saint Louis County

15 events in Saint Louis County
  • Sun, Jan 18, 2026 at 7:30 AM

    Big River Running Company is proud to host a fun, friendly and first-class training program for runners and walkers of all ability levels to prepare for half and full marathons. This group is designed to help you on your personal fitness journey by providing you with coaches and teammates who share similar goals, turning the tough grind of training into a fun, social experience.

    Additional program information can be found at https://www.bigriverrunning.com/run/training-team/.

    Bronze Individualized Training Plans are designed to be 12-week plans for goal races that align with our Training Team season. For a different time frame or longer plan, please refer to Big River Personal Coaching or purchase a Silver or Gold personalized coaching package.

    Silver and Gold Personalized Coaching Packages are available for purchase from Filla Endurance. Email Coach Laura Filla at [email protected] for more information or to purchase a coaching package. Make sure to register for Training Team (Free)! Training Team participants receive a 10% discount when they purchase a season's worth of personalized coaching from Filla Endurance.

    Group Coaching Package: Filla Endurance offers a Group Coaching Package. Athletes can choose from a library of professionally written training plans (and switch between plans if life gets in the way), participate in monthly group calls with a running coach for support, education, and inspiration, and connect in a private online community. Register for Training Team (Free) and then sign up for Group Coaching here.

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    RunWalk via RunSignup
  • Sat, Feb 21, 2026 at 10:00 AM

    The 2026 Castlewood Cup returns to Castlewood State Park. Join us for some of the most beautiful scenery and well maintained single track in Missouri! A perfect combination of hills, switchbacks, and (some!) flat terrain await you. Break up the winter monotony and get back into the woods!

    5k15kTrail via RunSignup
  • Sat, Mar 14, 2026 at 8:00 AM

    Olin Veterans Association Honor Run

    5K Run | 1-Mile Memorial Walk

    Join the Olin Business School Veterans Association for our Honor Run — a 5K run and 1-mile memorial walk on the Washington University campus honoring the brave men and women who have served our nation.

    Why We Run

    Since 2000, the Olin Veterans Association has been dedicated to supporting and honoring the veteran community at Washington University. The OVA Honor Run brings together students, alumni, veterans, military families, and the greater St. Louis community for a morning of remembrance, camaraderie, and purpose. Every step is a tribute to those who served — and those who gave everything.

    The Course

    Both the 5K run and 1-mile memorial walk take place on and around the beautiful Washington University / Olin campus. The course features a flat, fast, and scenic route through one of St. Louis's most iconic campuses. Whether you're chasing a PR or walking in honor of a loved one, there's a place for you at this event.

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    1 Miles3.1 MilesRunWalk via RunSignup
  • Sat, Mar 28, 2026 at 8:00 AM

    The 46th ANNUAL Glendale Firehouse Run 1-mile, 5K, and 10K run benefits Glendale-Kirkwood Kiwanis Youth Programs, Backstoppers, and Responder Rescue. The first 300 registrants will receive a t-shirt. Awards & attendance prizes will be provided following the Run. Chip timing services are provided by Big River Race Management. Please note that race registrations are non-refundable.

    Packet Pickup

    If you missed packet pickup March 23-27, you may pick up them up on the morning of the race between 7:00 and 8:00 a.m.

    Parking

    Parking is extremely limited around Glendale City Hall, so please walk or carpool when/if possible. Parking will not be available at the City Hall parking lots nor the lots across the street from City Hall. Participants may park where there is legal street parking, as well as at North Glendale Elementary (765 N. Sappington Rd.) and Kirkwood Early Child Center (100 N. Sappington Rd.).

    Race Route

    The race will start and end right in front of the Glendale City Hall located at 424 N. Sappington Rd. The 1-mile fun run will begin at 8:00 a.m. The 5k and 10k will start at 8:30 a.m. The 10k route is the 5k route ran twice. Please note that this is a shared road event meaning that the road remains open to vehicle traffic throughout the race.

    Awards Categories

    • Awards will be presented to the first overall male and female finishers in both the 5k and 10k events.

    • Awards will be given to the top three male and female finishers in the following age groups for the 5k: 14 & Under, 15-19, 20-29, 30-39, 40-49, 50-59, 60-69, and 70 & Over.

    • Awards will be given to the first overall male and female finishers in the following age groups for the 10k: 19 & Under, 20-29, 30-39, 40-49, 50-59, 60-69, and 70 & Over.

    Please note this race is organized by the City of Glendale, Missouri. It is not affiliated with the City of Glendale, California.

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  • Sun, Apr 19, 2026 at 7:30 AM

    Have you considered getting into trail running or hiking, but didn’t know where to start, or were apprehensive about venturing out onto the trails alone? Big River Unpaved is a FREE, fun, friendly, and first-class training program for runners and walkers of all abilities. This program is geared for people new to hiking or trail running, looking for a fun, social, and supportive atmosphere in which to venture out into the outdoors. Our trail excursions will be supported by guides who will help you “stay found” and share knowledge about trail etiquette and technique. Our trail excursions will help make hitting the trails more comfortable and accessible by providing comradery and education in a fun, social, and supportive atmosphere.

    This program is FREE! So get ready to lace up your trail shoes and get outside!

    Details:

    • Weekly trail excursions on Sunday mornings at various locations throughout the St. Louis metro area. (Some of these trails will be a 30+ minute drive from the city and mid-county. The location schedule will be shared with registered participants.) The spring season also includes Thursday evening trail outings.

    • Weekly email newsletter to keep you informed

    • Beginner-friendly

    • Experienced Trail Guides to share motivation and advice (and help you “stay found”)

    • Age requirements - For safety reasons we can't accommodate unaccompanied minors. Those under 18 must be accompanied by (running/hiking with) their guardian for the duration of any trail excursion

    • Hiking Pace - Our Hike Guides will generally maintain a pace faster than 2.5mph or 24:00/mile. Participants desiring to hike slower are welcome to attend but may be hiking without Guide support.

    • Ruckers welcome!

    For more information, visit https://www.bigriverrunning.com/run/unpaved/

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    RunTrailWalk via RunSignup
  • 2091 Fenton Logistics Park Blvd, Saint Louis County, Missouri, 63026, United States
    OpenStreetMap Google Maps
    Sat, Apr 25, 2026 at 8:30 AM

    Join us for a meaningful 5k fundraiser supporting the mental health of our brave first responders! Lace up your shoes and show your support for those who dedicate their lives to keep us safe. This lovely route around 1st Phorm and the Fenton Firehouse will help raise awareness and funds for the essential mental health resources for our first responders. Let's run together, make a positive impact for the ones that serve our communities selflessly!

    PACKET PICKUP:

    Friday, April 24th from 3pm - 6pm CST at 1001 Assembly Pkwy, Fenton, MO 63026

    Saturday, April 25th from 7am-8am at the start line.

    Free custom T shirt with registration!

    AWARDS:

    Listen for announcements. We will do the awards as soon as the majority have finished.

    1st Place Overall Male & Female Finishers

    1st Place 3rd place in each Age Group for Male and Female, Awards for each race in the following age categories: 0-19, 20-29, 30-39, 40-49, 50-59, 60-69, 70+

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    5kRun via RunSignup
  • Sat, May 23, 2026 at 8:00 AM

    For many years, the Dogwood Parade was a yearly staple in Ladue’s tight-knit community, celebrating camaraderie, family and the anticipation of warmer months ahead. In 2025, we introduced The Dogwood Run, welcoming back the spirit and legacy of the parade to the heart of Ladue. That legacy will continue to 2026!

    After a scenic, tree-lined run, walk or stroll (yes, strollers are welcome!) around the famous “Ladue Triangle,” everyone will come together at the Post-Race Festival to kick off summer and give back, with all race proceeds benefiting The Ollie Hinkle Heart Foundation.

    Want to volunteer or support the event?

    Please e-mail [email protected]

    2026 Race Shirt

    2026 Award Bottle

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    3kRun via RaceRoster
  • Sat, Jun 06, 2026 at 7:00 AM

    Every Registration Includes

    Great Swag - designer shirt

    Custom medal

    Chip-timing with live results and awards

    Free photos

    Great snacks at the finish line!

    Plenty of fun!

    Grab your friends and family, you are not going to want to miss this one!

    *Youth-based pricing for the 5k/10k, 12 & Under are only $17!

    *Register by midnight on Thursday, two Thursdays before race day, to guarantee your shirt!

    3.1 Miles6.2 Miles15kRun via RunSignup
  • Sat, Jul 11, 2026 at 9:00 AM

    The BEER & BAGEL OFF-ROAD RACE SERIES is coming back to St. Louis! This is a favorite event for runners throughout the area, who come each year for a challenging trail run with a fantastic post-race party. Of course, there will be plenty of free bagels and beer. And the legendary race shirt, too – a long-sleeve tech shirt with “I’m a Drinker with a Running Problem” printed across the back. The event is supported by Fit4adventure Touring Company!

    We will be utilizing the Smith Shelter with entrance of Weidman Road.

    See full details
    4 MilesRunTrail via RunSignup
  • Sat, Aug 01, 2026 at 7:00 AM

    Join us for the Heatwave Half Marathon, 10K, & 5K!

    A sun-soaked summer challenge that’s perfect for the whole family.

    The fun includes –

    • Great Swag – designer shirt & custom medal

    • Chip-timing with live results and awards

    • Free photos

    • FREE ice cream at the finish to help you cool off

    • Plenty of hot fun in the summer sun!

    Grab your friends and family—you won’t want to miss this one!

    Can’t make the race? No problem! We offer a virtual race option where you can run anywhere, at any time, and still earn the fun swag!

    Youth-based pricing is available: ages 12 & under are only $17!

    Half Marathon/10K/5K registration includes a custom bib, designer shirt, and an awesome finisher medal!

    1 Mile registration is untimed and includes a custom bib, designer shirt, and an awesome finisher medal!

    Kid’s Dash is a fun, untimed dash for ages 10 and under. Registration includes a mini bib, youth-sized shirt, and a specially crafted medal for our youngest runners! (If your child wants to run the kid’s dash without swag, they’re welcome to run free on race day!)

    Register by midnight on Thursday, two Thursdays before race day, to guarantee your shirt!

    See full details
  • 1215 Larkin Williams Road, Saint Louis County, Missouri, 63026, United States
    OpenStreetMap Google Maps
    Sat, Sep 12, 2026 at 8:15 AM

    In December of 2021, Captain Andrew Allman was suddenly and abruptly diagnosed with stage four gastric adenocarcinoma, a cancer attributed to his exposure to burn pits from his deployment with the U.S. Army to Baghdad, Iraq eleven years prior. Andrew valiantly fought this aggressive cancer for seven months. Unfortunately, on Father’s Day, June 19 of 2022, he passed away, leaving behind his wife of almost fourteen years, Sarah, and their three school-aged children. Despite the aggressiveness of the cancer and the harsh side effects of the chemotherapy, Andrew resolved to fight with everything he had. At the time of his diagnosis, he was bedridden, but perseverance and determination allowed him to regain some strength and he was able to go on walks during his "rally-period." At one point, he managed to walk three miles in one day with Sarah by his side. His drive to overcome the obstacles he faced are the inspiration behind this 5k.

    Please join Legacy of Patriots for our 4th Annual Miles of Memories walk/run 5k. This will be an in-person event, but there is also a virtual option for our out-of-town supporters! Registration will remain open until the evening before the event. To guarantee you will receive an event t-shirt, please register no later than August 24th!

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    5kRunVirtualWalk via RunSignup
  • Sat, Sep 26, 2026 at 12:01 AM

    Get inspired and join the Ladue Education Foundation & Alumni Association (LEF) at the 14th Annual 'Due Run 4 Education! The beloved tradition of the ’Due Run 4 Education continues this year with a twist: you can participate either in-person OR virtually!

    In-Person

    Join us on September 26 starting at 7:00 am (shotgun start at 8:30) am in McKenna Plaza at the Ladue Horton Watkins Stadium. All ages are invited to participate in either a 5K or a 1-mile fun run that will start and finish on the stadium track. The event will include a live DJ, snacks & refreshments, vendor booths, awards and prizes with a chance to check yourself out on the stadium's Jumbotron. The race is organized by Big River Running Company and will feature chip timing.

    Virtual

    You can run or walk at any location you choose, at any time during the week, September 26 - October 3! Go to the park with the family or run on your treadmill, whatever you prefer. Keep your desired pace and time yourself so you can post the results. And if it turns out to be a lazy day, you can sleep in and still feel good about donating!

    Either way, you receive a T-shirt, and, most importantly, you support the LEF and its amazing grants and programs that provide academic and enrichment opportunities for Ladue Schools students and staff.

    If you’ve never done an in-person or virtual 5K or 1-mile run, it’s a great, low-stress alternative that encourages fitness for the whole family!

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  • Sat, Sep 26, 2026 at 8:00 AM

    Join us for the annual Hometown Half Marathon & 5k/10k! A run local-themed event that is perfect for the whole family.

    The fun includes -

    • Great Swag - designer shirt & custom medal

    • Chip-timing with live results and awards

    • Pacers for the half marathon

    • Free photos

    • Delicious Treats waiting at the finish line

    • Plenty of fun!

    *Youth-based pricing for the 5k/10k, 12 & Under are only $17!

    • Half Marathon Registration includes a custom bib, designer shirt, and an awesome finisher medal!

    • 10k registration includes a custom bib, designer shirt, and an awesome finisher medal!

    • 5k registration includes a custom bib, designer shirt, and an awesome finisher medal!

    • 1 Mile registration is untimed and includes a custom bib, designer shirt, and an awesome finisher medal!

    • The kid's dash is a fun, untimed dash for our kiddos ages 10 and under. Registration includes a mini bib, youth-sized shirt, and a specifically crafted medal for our kids' dash event! (If your child wants to run the kid's dash, and doesn't want the SWAG, they are welcome to run with us on race day for free!)

    *Register by midnight on Thursday, two Thursdays before race day, to guarantee your shirt!

    See full details
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