Spectator Guide · San Antonio Marathon, Half Marathon & 5K

San Antonio Marathon, Half Marathon & 5K Spectator Guide

October 29, 2026 · 3 min read

Downtown start/finish is the base.

At a glance

Date
Usually held in December
Location
San Antonio, TX
Distances
Marathon, Half Marathon, 10K, 5K
Field size
About 10,000 runners
Registration
sanantoniomarathon.com

San Antonio Marathon events center on downtown. The River Walk and Alamo area are natural spectator zones.

Best places to stand

Near the start/finish for most spectators. Mid-course parks if accessible on foot.

Keep exploring

Common questions

When is the San Antonio Marathon, Half Marathon & 5K?
Usually held in December.
How do I register for the San Antonio Marathon, Half Marathon & 5K?
Registration is handled by the organizer at sanantoniomarathon.com.