| 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 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 |
