Tri Boulder Sprint, Olympic & Long Course

Schedule

Sat Jul 19 2025 at 07:15 am to 03:30 pm

UTC-06:00

Location

Boulder Reservoir | Boulder, CO

Advertisement
The Beast Long Course Triathlon is back for another year at the Boulder Reservoir! This race has become one of Colorado’s most popular summer races. Tri Boulder also features a Long Course Duathlon and Aquabike, Olympic & Sprint Triathlon and Multisport Relay. That means we’ve got a distance to fuel everyone’s competitive spirit. Mark your calendars because this is a race you don’t want to miss!
Advertisement

Where is it happening?

Boulder Reservoir, Boulder, United States

Event Location & Nearby Stays:

BBSC Triathlon

Host or Publisher BBSC Triathlon

Tags:

Marathons in BoulderRunning in Boulder

It's more fun with friends. Share with friends

Discover More Events in Boulder

Good Day For The Blues |A Storyville Tribute - Jack Hadley & The Disruptors
Fri, 15 Aug, 2025 at 07:30 pm Good Day For The Blues |A Storyville Tribute - Jack Hadley & The Disruptors

Roots Music Project

MUSIC ENTERTAINMENT
Amazing Scavenger Hunt Adventure - Boulder
Wed, 08 Nov, 2017 at 10:00 am Amazing Scavenger Hunt Adventure - Boulder

Boulder Creek Path

TRIPS-ADVENTURES SPORTS
Puzzling Adventures Scavenger Hunt - Boulder
Thu, 25 Jun, 2020 at 10:00 am Puzzling Adventures Scavenger Hunt - Boulder

Recommended Parking to Begin Adventure

TRIPS-ADVENTURES SPORTS
Boulder Dash Amazing Race & Tour
Sat, 19 Oct, 2024 at 11:00 am Boulder Dash Amazing Race & Tour

West End Tavern

SPORTS DOG
Rev Run Swim Class - WINTER 25
Fri, 10 Jan, 2025 at 06:00 pm Rev Run Swim Class - WINTER 25

East Boulder Community Center

WORKSHOPS SPORTS
The Bias Inside Us
Mon, 24 Feb, 2025 at 09:00 am The Bias Inside Us

6007 Oreg Ave, Boulder, CO, United States, Colorado 80303

EXHIBITIONS SPORTS
Blue Card Mayday Management Workshop
Wed, 26 Feb, 2025 at 08:00 am Blue Card Mayday Management Workshop

Boulder County Regional Fire Training Center

WORKSHOPS SPORTS
The Global Roots Ensemble
Sun, 02 Mar, 2025 at 07:00 pm The Global Roots Ensemble

eTown Hall

MUSIC ENTERTAINMENT
Pigeons Playing Ping Pong (2 Nights!) with Squeaky Feet (3\/7), Sqwerv (3\/8) | Boulder Theater
Fri, 07 Mar, 2025 at 08:00 pm Pigeons Playing Ping Pong (2 Nights!) with Squeaky Feet (3/7), Sqwerv (3/8) | Boulder Theater

Boulder Theater

MUSIC ENTERTAINMENT
Pigeons Playing Ping Pong at Boulder Theater
Sat, 08 Mar, 2025 at 08:00 pm Pigeons Playing Ping Pong at Boulder Theater

Boulder Theater

TRIPS-ADVENTURES SPORTS
Pigeons Playing Ping Pong
Thu, 06 Mar, 2025 at 05:00 pm Pigeons Playing Ping Pong

Boulder Theater

SPORTS ART
Pigeons Playing Ping Pong
Thu, 06 Mar, 2025 at 05:00 pm Pigeons Playing Ping Pong

Boulder Theater

SPORTS ART
**2:30 start time** Community Cuddles Mar 9 Boulder
Sun, 09 Mar, 2025 at 02:30 pm **2:30 start time** Community Cuddles Mar 9 Boulder

Boulder

PARTIES ENTERTAINMENT
Jennifer Yu -- "Grief in the Fourth Dimension"
Thu, 13 Mar, 2025 at 06:30 pm Jennifer Yu -- "Grief in the Fourth Dimension"

Boulder Bookstore

SPORTS
"White Crow" Full Moon Drum Circle in Boulder
Fri, 14 Mar, 2025 at 07:00 pm "White Crow" Full Moon Drum Circle in Boulder

7075 Valmont Rd, Boulder, CO 80301-4700, United States

SPORTS NONPROFIT
Lucky Leprechaun 5K
Sun, 16 Mar, 2025 at 09:00 am Lucky Leprechaun 5K

Twisted Pine Brewery

SPORTS MUSIC
2025 Colorado Youth Football Invitational
Fri, 21 Mar, 2025 at 11:00 am 2025 Colorado Youth Football Invitational

CU Boulder Indoor Practice Facility

FOOTBALL SPORTS
Gary Gulman: Misfit Stand Up Tour | Boulder Theater
Sat, 29 Mar, 2025 at 07:00 pm Gary Gulman: Misfit Stand Up Tour | Boulder Theater

Boulder Theater

COMEDY ART
An Evening With Ken & Drew of Sister Hazel
Fri, 04 Apr, 2025 at 08:00 pm An Evening With Ken & Drew of Sister Hazel

4747 Pearl,Suite V3A,Boulder,80301,US

ENTERTAINMENT MUSIC
Pixie & The Partygrass Boys at Velvet Elk Lounge
Fri, 04 Apr, 2025 at 08:00 pm Pixie & The Partygrass Boys at Velvet Elk Lounge

Velvet Elk Lounge

CONCERTS MUSIC

What's Happening Next in Boulder?

Discover Boulder Events