September 20, 2025
12km, 21km, 50km, 80km, 100 km
or 100 miles
of single-track awesomeness!
- You can ONLY register for this event online (no in person registrations)
- GIFT CERTIFICATES for that someone special can also be purchased online
Event details can be found at River's Edge Ultra
PRIOR TO BEING ALLOWED TO PARTICIPATE IN THIS EVENT YOU WILL HAVE TO READ AND AGREE TO THE TERMS OF THE EVENTS RACE WAIVER.
NOTE: Deadline to register in order to obtain a T-Shirt for this year's event is August 15.
Men T-Shirt Sizes:
Women T-Shirt Sizes:
Youth T-Shirt Sizes:
Registration closes in
Countdown to event
Registration fees
Prices are inclusive of mandatory charges, items, and fees
"Mammoth" Solo 100 mile
Price changes in 5 months 20 days-
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Register for "Mammoth" Solo 100 mile$238.24Now registering Oct. 10 – Jul. 5
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$259.71Jul. 6 – Sep. 16
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"Mammoth" Solo 100 mile Pacer
Price changes in 5 months 20 days-
Pacers are allowed for the 2nd and 3rd Homestead Loops and all 3 Summit Loops
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Register for "Mammoth" Solo 100 mile PacerFreeNow registering Oct. 10 – Jul. 5
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FreeJul. 6 – Sep. 16
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"Magilla" Solo 100km
Price changes in 5 months 20 days-
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Register for "Magilla" Solo 100km$173.83Now registering Oct. 10 – Jul. 5
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$195.30Jul. 6 – Sep. 16
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"Magilla" Solo 100km Pacer
Price changes in 5 months 20 days-
Pacers are allowed to be used for both loops of the Summit Loop only
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Register for "Magilla" Solo 100km PacerFreeNow registering Oct. 10 – Jul. 5
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FreeJul. 6 – Sep. 16
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"Wallace" Solo 80km
Price changes in 5 months 20 days-
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Register for "Wallace" Solo 80km$163.10Now registering Oct. 10 – Jul. 5
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$184.56Jul. 6 – Sep. 16
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"Wallace" Solo 80km Pacer
Price changes in 5 months 20 days-
Pacers are allowed to be used for the last loop of the Summit Loop only
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Register for "Wallace" Solo 80km PacerFreeNow registering Oct. 10 – Jul. 5
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FreeJul. 6 – Sep. 16
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"Muskeg" Solo 50km
Price changes in 5 months 20 days-
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Register for "Muskeg" Solo 50km$152.37Now registering Oct. 10 – Jul. 5
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$173.83Jul. 6 – Sep. 16
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"Koda" Solo 21km
Price changes in 5 months 20 days-
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Register for "Koda" Solo 21km$130.90Now registering Oct. 10 – Jul. 5
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$152.37Jul. 6 – Sep. 16
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"Half Yak" Solo 12km
Price changes in 5 months 20 days-
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Register for "Half Yak" Solo 12km$109.43Now registering Oct. 10 – Jul. 5
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$130.90Jul. 6 – Sep. 16
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Kids "Muskrat" Run
Price changes in 5 months 20 days-
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Register for Kids "Muskrat" Run$18.19Now registering Oct. 10 – Jul. 5
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$28.93Jul. 6 – Sep. 16
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Event schedule
- Sat., September 20, 2025 8:00 a.m. - 100 mile "Mammoth" Solo Start
- Sat., September 20, 2025 8:00 a.m. - 100km "Magilla" Solo Start
- Sat., September 20, 2025 8:00 a.m. - 80km "Wallace" Solo Start
- Sat., September 20, 2025 9:00 a.m. - 50km "Muskeg" Solo Start
- Sat., September 20, 2025 10:00 a.m. - 21km "Koda" Solo Start
- Sat., September 20, 2025 11:00 a.m. - 12km "Half Yak" Solo Start
- Sat., September 20, 2025 3:00 p.m. - Kids "Muskrat" Run Start
Contact information
- Event contact
- Bryan or Debbi
- Website
- Visit website
