Colorado · Half Marathon
Every upcoming Half Marathon around Denver, with start times, entry fees, finish-time stats from past editions, start-line maps, and the local run clubs to train with.
6 upcoming half marathons found · 6 with finish-time stats
By the numbers
The Denver races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
Train for it
The fastest way to a start line is a standing group run. These Denver clubs welcome Half Marathon runners of all paces.
Browse all Denver run clubs →How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Oct 8, 2026.
Yes, for the most part. Across the 6 Half Marathon races in Denver with published results, the typical median finish is around 2:13:19, which means half of every one of those fields came in slower than that. Recreational runners and walk-runners are the bulk of these fields, not the exception.
Join a local run club. Rocky Mountain Road Runners, Colorado Harriers, Revolution Running and others in Denver welcome runners of all paces, and a weekly group run is the most reliable way to hold a training block together.
