Horsetooth Tri Training Open Water Swim Series
About this race
Horsetooth Tri Training Open Water Swim Series & Clinics
Whether you’re training for a triathlon, racing SUP, or just want to gain confidence in open water, this 8-week series offers hands-on practice and coaching in one of Colorado’s most iconic reservoirs.
Each week includes these options to choose from:
– Open Water Swim Clinics
– SUP Clinics designed for stand-up paddle triathletes and recreational paddlers
– Open Water Swim Series to build confidence, endurance, and race readiness
– SUP races/challenges
The Open Water Swim Series is a non-competitive and non-timed event designed as a weekly training series to give people safe access and practice to open water swimming. There will be a low-key group start to simulate real race conditions, with swim distances of your choice. This series is ideal for all experience levels, whether you're aiming to complete your first tri or refine your open water game.
Pick your distance
Running
June 3 Swim Clinic
June 3 - SUP Clinic
June 10 Swim Clinic
June 10 - SUP Clinic
June 17 - Swim Clinic
June 17 - SUP Clinic
June 24 - Swim Clinic
June 24 - SUP Clinic
July 8 Swim Clinic
July 8 - SUP Clinic
July 15 Swim Clinic
July 15 - SUP Clinic
July 22 Swim Clinic
July 22 - SUP Clinic
July 29 Swim Clinic
Swimming
Unlimited Package
6-Pack
4-Pack
June 3 Event
June 10 Event
June 17 Event
June 24 Event
July 8 Event
July 15 Event
July 22 Event
July 29 Event
Typical race-day weather
Based on 7 years of historical conditions on this event's race dates in Fort Collins.
Course
Route map and elevation profile
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.
Reviews
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Other races near Fort Collins
Different organizers, within 40 miles, in the next three months
Fall Equinox
Mustang Music 5K
Homecoming 5K - Colorado State University
OTILLO Swimrun Colorado
🏃 Plan Your Next Race in Fort Collins
Find upcoming events by distance:
- Fort Collins 5K Races 20 races
- 10K Run Events in Fort Collins 2 races
- Fort Collins Half Marathons 5 races
- Marathons in Fort Collins 2 races
- Fort Collins Running Calendar 2026 32 races
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, 37 Fort Collins events
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