Otter Creek Mountain Bike Race & Trail Run
About this race
Ride. Run. Celebrate the trails — North Dakota style.
Welcome to the Otter Creek Trail Festival, a two-day celebration of off-road adventure at Harmon Lake Recreation Area near Mandan, North Dakota.
Compete in the Otter Creek Trail Run or the Otter Creek Mountain Bike Race — then stick around for camping, food, and family fun at one of North Dakota’s most scenic outdoor venues.
🌟 Festival Overview 🌟
Date: June 12-13, 2026
Location: Harmon Lake, Mandan, ND
Events: Trail Run | Mountain Bike Race
Prizes: $4,200 total mtb race cash payout — equal for men and women
Host: 701 Cycle & Sport
The Otter Creek Trail Festival is a weekend designed for everyone — from first-time trail runners to expert mountain bikers chasing podium spots. Come for the race, stay for the community, and experience why Harmon Lake is North Dakota’s favorite summer trail destination.
Pick your distance
Trail running
Trail Run Short Loop ~ 3-4 miles
The short loop will utilize the west side of Harmon starting down the 2-track and meeting up with end of Epic Loop, returning back to the finish line via Fast & Flowy. (This is the same route of the "lead-in" for the mtb race).
Trail Run Long Loop ~ 12-13 miles
The long loop will utilize the west side of Harmon. The race will utilize the 2-track, Epic Loop, Blue Sky, Chutes & Ladders, and finishing on Fast & Flowy with a return to the Finish Line.
Mountain biking
Expert Race - 55 Miles
The 55 mile distance is going to start off with a lead in of approximately 4 miles before dropping down and crossing the dam to begin the short lap that will include Tight & Twisty, Chutes & Ladders, the Epic Short Loop (passing by the aid station) and Fast & Flowy. Short Lap distance approximately 12 miles. Laps 2 & 3 will each include the Harmon Lake trail system in it's entirety. Each of these laps will take you through Tight & Twisty to Chutes & Ladders. Next you'll hit Fast and Flowy until you hop off onto the Epic Loop. From the back of the Epic Loop you get to slay the newest trail, Blue Sky Trail. You'll pop back out and conquer the remainder of the Epic Loop to then finish the last half of Fast and Flowy. After coming through the chute you get to enjoy the ride on the pavement down to the dam before you do it all over again! Laps 2 & 3 are each approximately 19 miles. Registration includes event t-shirt and post-race meal & beverage.
Sport Race - 35 Miles
The 35 mile distance will start with the same lead-in (approx. 4 miles) and short lap (approx. 12 miles) that the 55 mile race begins with. After completion of the short lap, the 2nd lap will feature all of the trails Harmon Lake has to offer including the 2 newest trails! This distance will take you through Tight & Twisty to Chutes & Ladders. Next you'll hit Fast and Flowy until you hop off onto the Epic Loop. From the back of the Epic Loop you get to slay the newest trail, Blue Sky Trail. You'll pop back out and finish the remainder of the Epic Loop and the finish with the last half of Fast and Flowy with a sprint through the finish chute! Registration includes event t-shirt and post-race meal & beverage.
Beginner Race - 13 Miles
The 13 mile distance will start at under the arch before dropping down to the dam and hitting the Otter Creek Trail Tight and Twisty, Chutes and Ladders, the Short Epic Loop (where you will pass by the aid station at around mile 9) and finish out on Fast and Flowy. Registration includes event t-shirt and post-race meal & beverage.
E-Bike Sport - 35 Miles
The 35 mile distance will start with the same lead-in (approx. 4 miles) and short lap (approx. 12 miles) that the 55 mile race begins with. After completion of the short lap, the 2nd lap will feature all of the trails Harmon Lake has to offer including the 2 newest trails! This distance will take you through Tight & Twisty to Chutes & Ladders. Next you'll hit Fast and Flowy until you hop off onto the Epic Loop. From the back of the Epic Loop you get to slay the newest trail, Blue Sky Trail. You'll pop back out and finish the remainder of the Epic Loop and the finish with the last half of Fast and Flowy with a sprint through the finish chute! Registration includes event t-shirt and post-race meal & beverage.
Typical race-day weather
Based on 8 years of Open-Meteo archive data for this event's race dates in Mandan, plus the 3 days either side.
The sun rises at 5:48 AM and sets at 9:38 PM local time (CDT) in Mandan on June 12, 2026 — 15h 49m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
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2026 results — Otter Creek Mountain Bike Race & Trail Run
202 finishers across 6 distances · leading places in the Trail Run Short Loop ~ 3-4 miles
| Place | Name | Time | Pace |
|---|---|---|---|
| 1 | Tyler Asprey | 21:54 | 6:16 /mi |
| 2 | Jake Vigesaa | 26:19 | 7:31 /mi |
| 3 | Colt Boyer | 26:45 | 7:39 /mi |
| 4 | Erica Matykiewicz | 27:04 | 7:44 /mi |
| 5 | Eleno Vallejo | 27:21 | 7:49 /mi |
Every finisher is on the results page, filterable by distance, gender and age group.
All results by year
Other races near Mandan
Different organizers, within 40 miles, in the next three months
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 6 Mandan events
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