2021 - American Hero 25K Relay & Half Marathon
2021 distances
Running
25k Relay Team
Bring your team of 5 Runners and come test your legs on full out 5k.
25k Individual
Take on the challenge to run the full 25 by yourself.
5K Hero Race
Come and enjoy a full out race
Race-day weather
Conditions on July 31, 2021 — historical Open-Meteo data.
The sun rises at 6:53 AM and sets at 8:26 PM local time (CDT) in San Antonio on July 31, 2021 — 13h 33m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
Reviews
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Other races near San Antonio
Different organizers, within 40 miles, in the next three months
The Great Bear: 5K Run and 2-Mile Walk
Kiolbassa’s Sauerkraut Bend – The Wurst 5K Run in Texas
Urban Legend 5K
Cleftstrong 5K & Kids Fun Run
🏃 Plan Your Next Race in San Antonio
Find upcoming events by distance:
- San Antonio 5K Races 189 races
- 10K Run Events in San Antonio 86 races
- San Antonio Half Marathons 59 races
- Marathons in San Antonio 2 races
- San Antonio Running Calendar 2026 232 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 248 San Antonio events
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