When are most half marathons held in Key West?
January is the busiest month for Half Marathon races in Key West, with 2 of the 3. If you are flexible on the date, that is the quickest way to narrow things down.
Florida · Half Marathon
2026-2027 Half Marathons in Key West, Florida
Every upcoming Half Marathon around Key West, with start times, entry fees, finish-time stats from past editions, start-line maps, and the local run clubs to train with.
3 upcoming half marathons found · 1 with finish-time stats
By the numbers
The Biggest and Longest-Running
The Key West races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
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 16, 2026.
Common Questions About Running a Half Marathon in Key West
Where can I train for a Half Marathon in Key West?
Browse Key West run clubs on RunSesh to find a training group at your pace.