Boulderthon

Not yet rated1 race report

Boulder, United States · Date not yet confirmed

Official site(boulderthon.org, opens in a new tab)
Boulderthon: the flatirons above boulder, coloradoPhoto is not from race day
The Flatirons above Boulder, Colorado. Photo by: Tyler Cipriani. Source: Wikimedia Commons (opens in a new tab). Original file page (opens in a new tab). License: CC BY-SA 4.0 (opens in a new tab).

What racers say

  • Half-marathon review · lmoon73 ↗

    lmoon73 · 2026

    The runner enjoyed the scenery and appreciated aid, toilets and snacks remaining for slower finishers. They found altitude difficult, corral instructions confusing and weather-delay communication late.

    One runner's 2026 half-marathon review on RaceRaves, labeled Half Marathon. Current courses and services may differ; this account does not establish a consensus or a numerical rating.

Event details

Dates
The organizer has not confirmed a date in the checked source.
Place
Boulder, CO, United States
© OpenStreetMap contributors

Event sources

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