Texas · Race calendar
Upcoming running races in and near San Antonio, Texas - 5Ks, 10Ks, half marathons and more, with dates, pricing, finish-time stats, start-line maps, and local run clubs to train with.
121 upcoming races · 18 with finish-time stats
San Antonio running has two personalities, and most regulars end up loving both. Weekday miles flow along the River Walk from the central bend up to the Pearl complex, through King William's shaded streets, or around Brackenridge Park and the zoo. The culture that surrounds all of it is genuinely social - routes start and finish at brewery patios and coffee counters, and mixed-pace groups are the norm rather than the exception.
Push farther north and the terrain changes. McAllister Park's wooded paths and the Hill Country-flavored climbs at Eisenhower Park sit within the city limits, meaning you can run true dirt trails on a Tuesday and be back downtown for coffee before work. That range - flat and urban one day, rugged and quiet the next - is what makes training here feel like it never gets stale.
By the numbers
The San Antonio races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
Train for it
The easiest way to a start line is a standing group run. These San Antonio clubs welcome 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 Jul 27, 2026.
Across the 18 RunSignup 5K editions in San Antonio with published results on RunSesh - walkers and charity entrants included - the median finish time was 37:30, and the median last finisher came in at 1:16:03. Fields tend to be broad, so the back of the pack is well populated. The median field size across those editions was 172 runners.
Across the 5 RunSignup Half Marathon editions in San Antonio with published results on RunSesh, walkers and charity entrants included, the median finish time was 2:25:30, the median winner crossed at 1:39:36, and the median last finisher at 3:35:18. The median field size was 73 runners - intimate enough that you will not get lost in a crowd.
Across the 9 RunSignup 10K editions in San Antonio with published results on RunSesh, walkers and charity entrants included, the median field size was 58 runners and the median finish time was 1:07:31. Smaller, friendlier fields make a first 10K far less intimidating than a big-city blowout, and the flat downtown routes mean the course itself rarely adds unexpected difficulty.
Fall, running September through November, is by far the busiest stretch with 54 races. October alone holds 21. If you need a race to fit a specific training block, fall gives you the most options. March is the quietest month, with just 2 races, so if your block peaks then, plan registration early and have a backup.
43 of the races here already have a price increase scheduled, so early registration is worth acting on when you find a race that fits your calendar. Entry fees range from $1 on the low end to $89 at the top, with a typical fee around $30. Two races are free to enter entirely.
Yes, 6 races around San Antonio get you off the pavement: 4 are trail races, and 2 mix road and trail. Surfaces are not always published, so it is worth checking a specific race before you register.
