from Free
RegisterTexas ultramarathons
Ultramarathons in Texas
75 upcoming ultramarathons in Texas listed by date, with cities, start times, and entry fees. Find a ultramarathon near you and register.
75
upcoming races
6
cities with 3+
October 2026
Autumn Harvest 50K • 20-Miler • 10-Miler • 5-Miler • Full • Half • 10K • 5K • Big Bastrop Backyard Ultra (Last Runner & Last Rucker Standing)
Bastrop, Texas7:00 AM start
from $59.99
RegisterThe Mammoth Trail Run 2026 - 100K / 50K / 25K / 10K / 5K and Mighty Mammoth 1K Kids Dash
Glen Rose, Texas7:00 AM startTrail
from Free
Register
from $16
Register
from $20
Register
from $175
Register
from $65
Register
from Free
Register
from $10
Register
from $15
Register
from $12
Register
from $40
RegisterFields of Gold 50 Miler • 50K • Marathon • Half Marathon & Ruck • 12 Hour • 10K • 5K
Marble Falls, Texas7:00 AM start
from $49.99
Register
from $100
Register
from Free
Register
from Free
Register
November 2026
from $54
RegisterMustang Marathon (Hill Country Trivium) Road Race
Marble Falls, Texas7:00 AM startTrail
from $10
Register
from $50
Registerfrom Free
Register
from $12
RegisterColorado River Run 250K • 100 Mile • 50 Mile • 50K • Marathon • Half Marathon & Ruck • 10K • 5K • Kids 1K
Cedar Creek, Texas8:00 AM startTrail
from $15
RegisterDecember 2026
January 2027
from $545
RegisterCanyon of the Eagles New Year's Trail Challenge · 100K & 50K ULTRA, Marathon, 13.1M Run & Ruck, 10K, 5K • Last Runner Standing
Burnet, Texas10:00 AM startTrail
from $29.99
Register
from $12
Registerfrom Free
Registerfrom $10
RegisterLost Pines Endurance Fest 5K to 250K
Bastrop, Texas7:00 AM start
from $35
RegisterUltramarathon results in Texas
From 15 ultramarathons with official results in the last two years, 1,214 finishers in all.
| Distance | Races | Typical finish | Women | Men | Typical fee |
|---|---|---|---|---|---|
| 50K | 8 | 7:05:30 | 7:41:01 | 7:01:34 | $120 |
| 100K | 4 | 16:20:07 | 17:59:12 | 15:43:05 | $175 |
Typical times are the middle finisher across these races, weighted by field size. School meets, stair climbs, and results with timing errors are left out.
Fastest 50Ks in Texas
- 1Big Bend UltraTerlingua · median 6:55:17 · 115 finishers in 2025
- 2Brazos Bend 50Needville · median 6:55:24 · 186 finishers in 2026
- 3Sky IslandFort Davis · median 7:05:30 · 81 finishers in 2025
- 4Wildflower Trail RacesBastrop · median 7:06:14 · 90 finishers in 2026
Biggest ultramarathons in Texas
- 1Brazos Bend 100Needville · 232 finishers in 2025
- 2Brazos Bend 50Needville · 196 finishers in 2026
- 3Wildflower Trail RacesBastrop · 90 finishers in 2026
- 4Big Bend UltraTerlingua · 82 finishers in 2026
- 5Sky IslandFort Davis · 81 finishers in 2025
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec