- Weather
- 54°Ftypical start
- Field size
- ~2,000 runners
- Course
- Rolling
- Elevation
- 400 ft gain
Alamo and River Walk corridor
PR7.2Weather8.7Experience7.6
All marathons
Early December · Southwest · Loop
2026 San Antonio Marathon
San Antonio, TX
Event: 2026 - Marathon
Registration opens on the organizer's site
- Typical start temp
- 54°F(estimated)
- Field size
- ~2,000 runners(estimated)
- Course
- Rolling
- Elevation
- 400 ft gain · 0 ft net(estimated)
Why runners choose this race
A loop course around San Antonio, TX, with steady rollers that reward even pacing.
Good fit if
- Not enough verified data yet.
Think twice if
- No notable warnings in the data.
Course and logistics
- Course type
- Loop
- Surface
- Road
- Total gain
- 400 ft(estimated)
- Total loss
- 400 ft(estimated)
- Net elevation
- 0 ft(estimated)
- Field size
- ~2,000 runners(estimated)
- Crowd support
- Pockets of spectators
- Entry
- Easy
- Entry fee
- $119(most recent listed price)
- Day of week
- Friday
- Start / finish
- Start and finish in the same area
Race details
- Typical timing
- Early December
- Next confirmed date
- Friday, December 4, 2026
- Registration
- Open now
- Region
- Southwest
- Editorial tier
- Recommended
- Prestige
- 6.0/10(estimated)
- Data last reviewed
- 2026-08-26
Event: 2026 - Marathon
Good to know
- Loop course
- Easy entry
Race-day weather
Modelled from location, month and coastal proximity — not verified race history.
ExcellentGoodWarmHeat risk
Typical start sits at 54°F — good conditions.
Similar races
- Weather
- 52°Ftypical start
- Field size
- ~2,500 runners
- Course
- Rolling
- Elevation
- 500 ft gain
"Run to Remember" memorial tribute
PR7.3Weather8.9Experience7.7
- Weather
- 48°Ftypical start
- Field size
- ~1,500 runners
- Course
- Rolling
- Elevation
- 700 ft gain
"Center of the Universe" detour option
PR7.3Weather9.0Experience7.4