8 running, cycling, and mountain biking events in Spearfish, South Dakota
From big races to Saturday morning group runs—find running, cycling, and mountain biking events and connect with the local endurance sports community.
Spearfish
8 events in Spearfish-
Sun, May 10, 2026 at 8:00 AMSee full details
"Run for Their Lives!" is a casual and family-friendly Mother's Day 5K race/run/walk generously sponsored by Monument Health and CatholicPsych Institute.
This event is a place to gather the people that we love and participate together in memory of the ones that we are missing. It is a place to celebrate motherhood in its fullness of love, joy, gratitude, and sorrow. We invite bereaved mothers to have their children included on our list of children remembered and their names will be listed on the back of our event t-shirt. (Deadline for name submissions is April 5th)
There is no greater gift to a grieving parent than to remember their child, to say their name, and to walk beside them with a reverence for what they have lost.
2026 Highlights:
You will be able to register as one team whether you are participating in-person or virtually.
Team captains will register first and set up a team name, then all additional members can designate themselves as part of that team.
Whether you are participating in-person or virtually, part of what makes this event fun is to connect as a community!
Join our event Facebook group here: https://www.facebook.com/groups/virtualrunfortheirlives
This is where we'll share event information, photos, and a slide show of the children we are running to remember.
We would LOVE for you to share your photos of your run, your group, and your team shirts.
Tell us about the person you are running to remember and tell us a story about them!
Tell us why this event is meaningful to you!
Don't forget to tag your posts with #runfortheirlives2026
All proceeds from the event will go to support Lach's Legacy and the fight against SIDS in South Dakota. Lach's Legacy is a 501(c)3 non-profit organization, and works to provide comfort to newly bereaved families, SIDS and safe-sleep education, and support for SIDS-related research. Learn more about us at www.lachslegacy.org
For Kids:
NOTE: There is special pricing of $5 off for kids 12 and under. Discount is applied at the checkout.
If you want your child to get a t-shirt, be eligible for race awards, and/or be an official member of your team then children must be registered.
If they are just along for the ride, it is not necessary to register them separately!
In-person Participants:
Your registration includes a race t-shirt, commemorative bib number, refreshments, prizes for overall winners and medals for age-group winners! To be guaranteed your t-shirt, you must be registered by April 24th. After that t-shirts will be distributed on a first-come first-served basis. Race-day registration will also be available.
Silent Auction will be held on-site!
Chip-timing is available for those who would like an official race time and to be eligible for awards!
Virtual Participants:
Your registration includes the race t-shirt, commemorative bib number, and a custom race medal! There will be no official times or places. We encourage you to do your 5K (3.1 mile) walk/run at a time and place that is convenient for you!
Be sure to join us in the virtual community at: https://www.facebook.com/groups/virtualrunfortheirlives
(T-shirts are printed in bulk, so race packets will be shipped out to you the week of May 5th and should arrive before race day)
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Mon, Jun 01, 2026 at 9:00 AMSee full details
Spearfish Shred Squad Youth Mountain Bike Program
Get ready to ride, learn, and have a blast this summer with the Spearfish Shred Squad! This youth mountain biking program is designed to help kids ages 6-12 to build confidence, improve skills, and develop a love for riding—all in a fun, supportive group environment.
Program Details:
Dates: June 1 – July 1
Days: Mondays & Wednesdays
Time: 9:00 – 10:30 AM
Locations:
• Mondays: Spearfish Park – drills + nearby trail riding
• Wednesdays: Sandstone Park – drills + local trail riding
What’s Included:
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Shred Squad Jersey
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Drinks & Snacks
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Fun Prizes
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Professional Bike Skills & Drills Coaching
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Group Trail Rides
What to Expect Each Practice:
Each session is structured to keep kids engaged, progressing, and having fun:
• 10 min: Warm-Up (shake out the wiggles!)
Day 1 includes welcome + icebreaker game
• 15 min: Skill Introduction & Demo
• 20 min: Fun, Skill-Focused Drills
• 35 min: Trail Ride to Apply Skills
• 10 min: Game or Challenge
• 5 min: Wrap-Up + “Skill of the Day” Recap
Whether your rider is just getting started or looking to level up, Spearfish Shred Squad is the perfect place to build skills, make friends, and enjoy the trails.
Come ride with us and get shreddy!
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Sun, Aug 23, 2026 at 6:00 AMSee full details
Leading Ladies & Dakota Spirit Marathon, Half Marathon, Relay & 10K
August 23rd,2026
What started out as a Women’s Marathon is now open to all but let’s face it; the women, in my opinion, are still in charge!
Picture this: a perfect place, a perfect pace, a perfect race…Knowing a downhill marathon is about speed, and that it’s going to be a fast run, I still encourage you to take the time to look around and savor the unique beauty only a Black Hills of South Dakota Marathon can provide.
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Sun, Sep 13, 2026 at 12:00 PMSee full details
The best the Black Hills of Wyoming and South Dakota have to offer - Almost entirely downhill except for one tough hill from mile 2.00 to 2.56 miles with 169 ft gain. First 12 miles from Cement Ridge to Savoy are on very runnable improved gravel roads, covers scenic mountain meadows, valleys and canyons, and drops 1,606 ft. You will pass the winter film site for “Dances with Wolves” at mile 9.35! The remaining 14 miles is hardtop and descends Spearfish Canyon Hwy (Rt 14A, a National Scenic Byway) to Spearfish, a route shared by the Leading Ladies Marathon and a drop of another 1,364 ft. This extremely fast course will be 1 of only 2 USATF Certified Courses (=Boston Qualifying Course) in Wyoming and it counts for either Wyoming or South Dakota – Your Choice!
Local Clubs & Organizations
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Club
USA Swimming Club. 52 members.
[email protected] +1 605-645-5101