When are most Marathon races held in San Antonio?
December is the busiest month for Marathon races in San Antonio, with 2 of the 3. If you are flexible on the date, that is the quickest way to narrow things down.
Texas · Marathon
Marathon Races in San Antonio, Texas
Every upcoming Marathon around San Antonio, with start times, entry fees, finish-time stats from past editions, start-line maps, and the local run clubs to train with.
3 upcoming Marathon races found
Train for it
Run Clubs in San Antonio
The fastest way to a start line is a standing group run. These San Antonio clubs welcome Marathon runners of all paces.
Browse all San Antonio 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 Sep 10, 2026.
Common Questions About Running a Marathon in San Antonio
How much do San Antonio Marathon races cost?
Entry fees for Marathon races here run from $40 to about $89, depending on the event and how early you register.
How early should I register for a Marathon in San Antonio?
2 of the 3 Marathon races in San Antonio already have a price increase scheduled, so entry gets more expensive the longer you leave it. Race pricing almost always steps up as the date approaches, and signing up early is usually the cheapest option.
Where can I train for a Marathon in San Antonio?
Join a local run club. Dreamers, In The Loop Run Crew, Urban Run Club SATX and others in San Antonio welcome runners of all paces, and a weekly group run is the most reliable way to hold a training block together.