# Marathon Races in San Antonio, TX (2026)

> 9 upcoming Marathon races in San Antonio, Texas.

- **Page:** https://runthis.run/races/texas/san-antonio/marathon

## Races

- **[2026 Alamo Beer Challenge Race 4 of 4 Battle of Leon Creek 20 mile, 10 mile and 5k](https://runthis.run/event/rr-112591-2026-alamo-beer-challenge-race-4-of-4-battle-of-leon-creek-2)** — Sat, Nov 14, 2026 · 7:00 AM CST · San Antonio, TX · 20.0 mi / Marathon / 10.0 mi / 5K
- **[Golden Harvest Half Marathon & 5k/10k - San Antonio](https://runthis.run/event/rs-194428-golden-harvest-half-marathon-5k-10k-san-antonio)** — Sun, Sep 27, 2026 · 12:00 AM UTC · San Antonio, TX · 50 m / 1 mile / 5K / 10K / Marathon
- **[Turkey Trails - San Antonio](https://runthis.run/event/rs-167915-turkey-trails-san-antonio)** — Sun, Nov 29, 2026 · 12:00 AM UTC · San Antonio, TX · 50 m / 1 mile / 5K / 10K / Marathon
- **[2026 San Antonio Marathon](https://runthis.run/event/rs-172812-2026-san-antonio-marathon)** — Fri, Dec 4, 2026 · 12:00 AM UTC · San Antonio, TX · Marathon / 5K
- **[2026 - San Antonio Marathon](https://runthis.run/event/rs-194478-2026-san-antonio-marathon)** — Fri, Dec 4, 2026 · 12:00 AM UTC · San Antonio, TX · Marathon / 5K
- **[SARR Great Greenway Marathon Relay](https://runthis.run/event/rs-137569-sarr-great-greenway-marathon-relay)** — Sun, Feb 7, 2027 · 12:00 AM UTC · San Antonio, TX · Marathon
- **[DoNot Stop Half Marathon/5K/10K - San Antonio](https://runthis.run/event/rs-156117-donot-stop-half-marathon-5k-10k-san-antonio)** — Sat, Apr 17, 2027 · 12:00 AM UTC · San Antonio, TX · 50 m / 1 mile / 5K / 10K / Marathon
- **[Siesta Half Marathon](https://runthis.run/event/rs-139816-siesta-half-marathon)** — Sun, Apr 25, 2027 · 12:00 AM UTC · San Antonio, TX · Marathon
- **[Heatwave Half Marathon/5K/10K - San Antonio](https://runthis.run/event/rs-192372-heatwave-half-marathon-5k-10k-san-antonio)** — Sat, Jul 31, 2027 · 12:00 AM UTC · San Antonio, TX · 50 m / 1 mile / 5K / 10K / Marathon

## Nearby

- [All races in San Antonio, TX](https://runthis.run/races/texas/san-antonio.md)
- [Marathon races in Texas](https://runthis.run/races/texas/marathon.md)

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Source: [https://runthis.run/races/texas/san-antonio/marathon](https://runthis.run/races/texas/san-antonio/marathon) — data from Run This (runthis.run).