Marathons in San Antonio

3 upcoming marathons in San Antonio. Filter by date, exact distance, or elevation.

10K races in San AntonioHalf marathons in San AntonioUltras in San AntonioAll distances in San Antonio

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This calendar in numbers

This calendar currently lists 3 upcoming events, from Dec 4, 2026 to Dec 4, 2026. December is the busiest month, with 3 events scheduled.