ÖTILLÖ Colorado USA
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Event overview
The ÖTILLÖ Swimrun Colorado takes place on 4 October 2026 in the Fort Collins / Bellvue area of Colorado. The race uses Horsetooth Reservoir and Lory State Park with the Soldier Canyon Event Facility as the start/finish area. The course combines open-water swims in the reservoir with trail runs through Lory State Park.
Race distances
- Colorado Experience - Total 6 mi; Swim 1.5 mi; Run 4.5 mi; Elevation 292 ft
- Colorado Sprint - Total 11 mi; Swim 3 mi; Run 8 mi; Elevation 944 ft
- Colorado World Series - Total 23.5 mi; Swim 5 mi; Run 18.5 mi; Elevation 2,091 ft
Logistics and rules
Packet pickup is held the day before the race at Runner’s Roost (Square Shopping Center, 3500 S College Ave, Suite 178, Fort Collins). Parking is limited; on-site lots fill first with an overflow lot about 0.5 mile away. Spectators arriving separately pay a park entry fee. All distances share the same cut-off at the finish area. Awards are issued as finishers cross the line and include top-three categories for World Series and Sprint teams and solos.
Mandatory gear is enforced. Race-provided items include a color-coded swim cap, number bib, timing chip, and a Restube for solo racers. Athlete-provided mandatory items include shoes, a wetsuit, a whistle, a compression bandage, and a tether. Water stops provide both water and electrolyte-infused drinks; littering on course can lead to disqualification. Visit the organization's website for the most recent information.
