2025 Colorado Triathlon Calendar
| Day | Date | Event | Provider | Location |
|---|---|---|---|---|
| Saturday | May 10, 2025 | Ordinary Mortals Duathlon | Southern Colorado Triathlon Club | Lake Pueblo State Park, Pueblo, CO |
| Saturday | June 7, 2025 | Colorado Triathlon | Without Limits Productions | Boulder Reservoir, Boulder, CO |
| Saturday | June 14, 2025 | IRONMAN 70.3 Boulder | IRONMAN | Boulder Reservoir, Boulder, CO |
| Saturday | June 21, 2025 | Loveland Lake to Lake Triathlon | Loveland Lake to Lake | North Lake Park, Loveland, CO |
| Saturday | June 21, 2025 | XTERRA Lory | XTERRA | Lory State Park, Bellvue, CO |
| Sunday | June 29, 2025 | Boulder Sunrise Triathlon | BBSC Endurance Sports | Boulder Reservoir, Boulder, CO |
| Friday | July 4, 2025 | SUP-Athlon | SUP-Athlon | Georgetown Lake, Georgetown, CO |
| Saturday | July 5, 2025 | Sheep Creek Triathlon | Sheep Creek | Antonito, CO |
| Friday | July 11, 2025 | Frisco Triathlon | Town of Frisco | Frisco Bay Marina, Frisco, CO |
| Saturday | July 12, 2025 | LG TRI: Splash, Grind, Sprint | LG TRI | Siena Valley Club, Gypsum, CO |
| Sunday | July 13, 2025 | Boulder Peak Triathlon | Without Limits Productions | Boulder Reservoir, Boulder, CO |
| Saturday | July 19, 2025 | Tri Boulder | BBSC Endurance Sports | Boulder Reservoir, Boulder, CO |
| Sunday | July 27, 2025 | Steamboat Lake Sprint Triathlon | Steamboat Lake | Steamboat Lake Marina, Clark, CO |
| Sunday | August 3, 2025 | Stagecoach Gravel Triathlon | Stagecoach | Stagecoach Reservoir, Oak Creek, CO |
| Saturday | August 9, 2025 | Rocky Mountain Tri-Fest | BBSC Endurance Sports | Boulder Reservoir, Boulder, CO |
| Sunday | August 10, 2025 | Outdoor Divas Triathlon | Outdoor Divas | Union Reservoir, Longmont, CO |
| Saturday | August 23, 2025 | Boulder Sunset Triathlon | BBSC Endurance Sports | Boulder Reservoir, Boulder, CO |
| Saturday | August 23, 2025 | Gunnison Valley Triathlon | Gunnison Valley | Gunnison, CO |
| Saturday | September 6, 2025 | Littlefoot Triathlon | Racing Underground | Bear Creek Lake Park, Lakewood, CO |
| Saturday | September 6, 2025 | Lake Nighthorse Triathlon | Durango Triathlon Club | Lake Nighthorse, Durango, CO |
| Saturday | September 6, 2025 | SheSprints Triathlon | SheSprints | Cherry Creek State Park, Aurora, CO |
| Saturday | September 13, 2025 | Harvest Moon Triathlon | BBSC Endurance Sports | Boulder Reservoir, Boulder, CO |
| Saturday | September 13, 2025 | Splashland Triathlon | Splashland | Alamosa, CO |
| Sunday | September 21, 2025 | Oktoberfest Triathlon | Without Limits Productions | Union Reservoir, Longmont, CO |
| Saturday | September 27, 2025 | Black Canyon Triathlon | Black Canyon | Montrose, CO |
Contact Us
Please fill out the form below and we’ll get back to you within 24 hours.
Location
Arvada Triathlon Company
14715 W 64th Ave, Unit D
Arvada, CO 80004
Monday 10am-4pm
Tuesday-Saturday 10am-6pm
Sunday 12pm-4pm
