Tri Boulder

Boulder Reservoir, Boulder, CO

july 20, 2024

TRI Boulder: Race details

As one of Colorado’s most popular summer triathlons, Tri Boulder offers many different multisport race distances, all in one eventful day! Join us for a full day of racing at the Rez.

Tri Boulder will host the 2024 Colorado Age Group, Club and High School State Championships

TRI Boulder: Course distances & SCHEDULE

Long Course Boulder Beast Triathlon
1.2mi swim, 50 mile bike, 9.3 mi run

Olympic Triathlon
1500m swim / 26.4 mile bike / 6.2 mile run
Sprint Triathlon
750m swim / 17.3 mile bike / 3.1 mile run

Long Course Aquabike
1.2mi swim / 50 mike bike

Sprint Duathlon
3.1 mile run / 17.3 mile bike / 3.1 mile run

Multi-sport Relays
2-3 person teams can compete together in the multi-sport races

Race Day Schedule
5:30am: Transition Area Opens
5:45am - 7:30am: Race Day Packet Pick Up
7:05am: Boulder Beast Waves Start
7:07am: Aquabike
7:13am-7:27am: Olympic Triathlon Starts
7:30am-7:45am: Sprint Triathlon Starts
7:30am: Duathlon Start
8:30am: Swim Cut-Off
9:00am: Sprint Tri Awards
9:45am: Duathlon Awards
10:00am: Olympic Tri Awards
12:00pm: Boulder Beast Aquabike Awards
12:30pm: Bike Cut-Off
1:00pm: Boulder Beast Tri Awards
3:30pm: Run Cut-Off / Course Closed

Tri Boulder: Pricing

Distance11/1 - 11/1through 12/31through 5/12through 7/147/15-7/20
Sprint Tri$90$100$110$125$135
Olympic Tri$115$125$135$150$160
Long Course Tri$165$175$185$200$210
Long Course Relay$180$190$200$210$220
Long Course Aqubike$130$140$150$160$165
Sprint Duathlon$90$100$110$125$135
Sprint Duathlon Relay$115$125$135$150$160
Sprint Tri Relay$115$125$135$155$165
Olympic Tri Relay$135$145$155$170$180

Tri Boulder: Packet Pick Up

Photo ID Required 

You must pick up your own race packet.

USAT annual members must bring proof of current USAT Membership.

Thursday, July 18
4:00pm - 7:00pm
Colorado Athletic Club Boulder
1821 30th St, Boulder, CO 80301

Friday, July 19
Road Runner Sports Westminster
10442 Town Center Dr Suite 300, Westminster, CO 80021

Saturday, July 20
Race Morning - Finish Line Trailer 
Boulder Reservoir Parking Lot


Tri-Boulder: sponsors

TRi Boulder: course Maps


Swim Course

Boulder Reservoir
Sprint 750m (0.47mi) - Olympic 1500m (0.93mi) - BEAST  1900M (1.2MI)
Swim Course

Bike Course

boulder reservoir
Sprint 17.3mi - Olympic 26.4mi - BEAST 50MI
Sprint CourseolympIC & BEAST Course

Run Course

boulder reservoir
Sprint 5K (3.1mi) - Olympic 10K (6.2mi) - BEAST 9.3MI
RUN Course
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