ÖTILLÖ Colorado USA
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Event overview
The ÖTILLÖ Swimrun race in Colorado is scheduled for September 27, 2026. The event is held around Horsetooth Reservoir and Lory State Park near Fort Collins. The course combines open-water swims in the reservoir with trail running in Lory State Park. The start and finish area is at Soldier Canyon Event Facility, 708 Lodgepole Dr., Bellvue, CO.
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 mandatory the day before the race at Runner’s Roost in Fort Collins. Parking is limited; spectators pay a per-vehicle park entry fee. Mandatory race gear includes a wetsuit, shoes to be worn the entire race, a whistle, a compression bandage, and a tether for teams. The race provides color-coded swim caps, number bibs, a timing chip, and a Restube for solo racers. Mandatory gear may be checked and missing items can lead to disqualification. Teams must stay together on the marked course and follow litter rules. Water stops have at least two coolers: one with water and one with electrolyte-infused water, and most stops offer gels. Awards for top finishers are handed out as winners cross the finish line. Visit the organization's website for the most recent information.
