When is race season in Alamosa?
November is the busiest month for races in Alamosa, with 2 of the 3. If you are flexible on the date, that is the quickest way to narrow things down.
Colorado · Race calendar
2026-2027 Running Races in Alamosa, Colorado
Upcoming running races in and near Alamosa, Colorado - 5Ks, 10Ks, half marathons and more, with dates, pricing, finish-time stats, start-line maps, and local run clubs to train with.
3 upcoming races · 1 with finish-time stats
By the numbers
The Biggest and Longest-Running
The Alamosa races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
Within 100 miles
Races in Nearby Cities
More race calendars close to Alamosa. Miles are measured center to center, so treat them as a rough guide.
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 18, 2026.
Common Questions About Racing in Alamosa
Where can I train for a race in Alamosa?
Browse Alamosa run clubs on RunSesh to find a training group at your pace.