BOULDER PEAK
JULY 13th, 2025
TRIATHLON, DUATHLON, & AQUABIKE
BOULDER PEAK TRIATHLON SWIM COURSE (1500 Meters)
The 1,500-meter swim portion of the event starts and finishes east of the transition area at the Boulder Reservoir open swim area. The one-loop course is well marked by large buoys and begins on the west side of the open swim area. The flow is a clockwise direction and, upon exiting the swim, athletes will follow the marked course to transition. This year’s event will feature wave starts from the beach. Groups of 25-50 people will release every few minutes onto the swim course, alleviating previous swim congestion.
Please note athletes must wear the swim cap provided to them at athlete check-in. There are absolutely no dogs or glass allowed at the Boulder Reservoir.
BOULDER PEAK OLYMPIC TRIATHLON BIKE COURSE (24.8 Miles)
The bike course for the Boulder Peak Olympic Triathlon is one of the most iconic and longest standing courses in the country. The course features the rolling rural roads of Boulder County, but the key feature is the "Old Stage Climb"! It's short, steep, and will challenge all levels of competitors. Don't fear, once you start to crest the summit our aid station volunteers will be cheering you on and getting you rehydrated for the remaining miles.
BOULDER PEAK TRIATHLON RUN COURSES (Oympic 10k)
The 10k run is an out & back course along the dirt road adjacent to Boulder Reservoir! The only way to describe this course is FLAT & FAST, and with the best finish line surprise in the sport! For those athletes who race the Stroke & Stride Series during the Summer, you know the first portion of this course well! Athletes will encounter one aid station when they exit transition, and another one at the 1, 2, 3, 4, 5 mile marks.
