"City-centre triathlon in Boulder — race through iconic streets and waterways."
🏊 Swim
River swim in Boulder
🚴 Bike
Bike course through Boulder
🏃 Run
Run through Boulder
Transition Details
T1/T2 are in the same location · Surface: pavement
Weather
Typical conditions in Boulder
Registration
https://www.example.com/boulder-triathlon-olympic
The Story
There's something about triathlon in Boulder that doesn't translate to photos. The 1500m swim sends you into cool river current at 16°C — cool enough to want a wetsuit, warm enough to swim without panic. The 40km bike packs 433m of elevation gain — a seriously hilly course that separates climbers from time-triallists. A 10km flat run finishes what the bike started. This is Boulder triathlon: 5,400ft elevation, Flatirons backdrop, a town where everyone is an athlete and nobody is impressed. Not the longest day in triathlon, but one that leaves a mark.
"Every city has a marathon. Boulder has a triathlon. That tells you something about this place."
What It Feels Like
A olympic course that reflects Boulder: altitude training mecca turned race venue. It suits a wide range of athletes — accessible enough for a strong first-timer, honest enough to challenge a veteran. Race it once and you'll understand why people return.
🏊 The Swim
A 1500m river swim at 16°C. Current adds a variable — sometimes helpful, sometimes a challenge. Read the race briefing carefully for swim direction and expected flow.
🚴 The Bike
40km with 433m of climbing — a seriously hilly course that rewards power-to-weight over pure wattage. The climbs are the race; the descents are recovery. Come with climbing legs or come with patience.
🏃 The Run
A 10km flat run through Boulder. After the bike, flat ground feels like a gift — until the pace catches up. The run rewards negative splitting: start conservative, finish strong, pass people in the final kilometres.
💡 Insider Tips
- → At 16°C, the water is cool enough to tighten your breathing on entry. Practice cold starts — jump in, swim hard for 50m, settle into rhythm. Race day shouldn't be the first time you experience this.
- → The bike has 433m of climbing — don't underestimate the cumulative toll on your legs. Keep your cadence high on the climbs and save your quads for the run. A compact crankset with a 28+ cassette is worth considering.
- → Altitude affects everyone. Arrive at least 48 hours early, ideally a week. Reduce your target intensity by 5-10% compared to sea level. Hydrate aggressively — you lose more water breathing dry, thin air.
Prepare for This Race
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FAQ
What distance is the Boulder Triathlon Olympic? +
The Boulder Triathlon Olympic is a Olympic Distance distance triathlon: 1500m swim, 40km bike, and 10km run (51.5km total) in Boulder, United States.
When is the Boulder Triathlon Olympic? +
Typically held in April on a Sunday.
Water temperature and wetsuit rules? +
River water at 16°C average. Wetsuit rules are conditional.
How hilly is the bike course? +
433m of climbing over 40km. Profile: hilly. Drafting not allowed.
What's the weather like on race day? +
undefined–undefined°C, 53% humidity, 35% rain chance, 11 km/h winds.
Average finish time? +
Approximately 2h 30m. Varies with conditions and athlete experience.
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