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Registration Information


50K Endurance Run Race Fee

$145 through December 15, 2023

$170 December 16, 2023 - January 24, 2024

$195 January 25, 2024 - February 22, 2024

Half Marathon Race Fee

$110 through December 15, 2023

$125 December 16, 2023 - January 24, 2024

$140 January 25, 2024 - February 22, 2024

Register by January 24, 2024 to guarantee your jacket/hoodie size. This is also the final day to switch your race distance and receive the appropriate swag.

Race Entry Includes:

  • A beautiful 99% trail point-to-point route along the American River and Folsom Lake

  • Custom jacket with event logo and gender-specific sizing for 50K participants

  • Custom lightweight zip-up hoodie with event logo and unisex sizing for half marathon participants

  • Finisher medal

  • Professional race photos

  • Runner shuttle to the start line

  • Fully-stocked aid stations with tons of ultra food and fuel

  • Post-race finish line party with amazing food and beer

  • Prizes and awards for top finishers


Maximum Participation

400 Participants in the 50K

100 Participants in the Half Marathon

Refund Policy

Coloma River Races is a non-profit and proceeds from the race benefit JDRF. A 50% refund may be requested via email to before January 24, 2024. Sorry, no rollovers, deferrals or exceptions.

The race will be run rain or shine. However, there are certain circumstances that are completely out of our control that may force us to cancel or reschedule if racer safety is in question. No refunds will be offered in the event of a cancellation due to natural disaster.

Switching Distances

Runners may switch race distances once. Please email for assistance. If you are switching from the half marathon to the 50K, you will be charged the difference based on the current 50K price. If you are switching from the 50K to the half marathon, you welcome to but we are not able to refund the difference. In order to receive the correct distance swag, you must request to change your distance by January 24, 2023.

Packet Pickup

Friday, February 23, 2024 from 3:00 PM - 7:00 PM

Gold Country Run + Sport (El Dorado Hills Location)
4370 Town Center Blvd., Ste 150
El Dorado Hills, CA 95762

More Info

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