Spooky Sprint-Austin
Oct 17Del Valle, TXHalf Marathon, 10K +2
5K, 3 weeks before race day, 29 mi away, registration open
Aid stations, cutoffs and pacing in one plan, with the timeline your crew follows. Crew invites and race-day updates come with a Race Pass.
Build my planThe Big Texas Ultra is a two day endurance event featuring a 15K on Friday and a 15K, 50K, 100K & 15K RUCK on Saturday in the hills of Central Texas on the Lake Georgetown Rim Trail.
Championship ends
Aug 6, 2026
RUCK Saturday ends
Aug 6, 2026
Registration closes
Nov 6, 2026
Race day
Nov 6, 2026
100K
Championship (after Aug 06)
$180
All distances
100K
$160
50K
(after Aug 06)
$135
15K
Saturday (after Aug 06)
$75
15K Friday
(after Aug 05)
$75
Registration openings and major changes, like a new date or a cancellation.
Can't race, or need an entry? Post it here so nobody has to ask if it's still available.
Oct 17Del Valle, TXHalf Marathon, 10K +2
5K, 3 weeks before race day, 29 mi away, registration open
Oct 17Burnet, TX50K, Marathon +3
5K, 3 weeks before race day, 34 mi away, registration open
Oct 17Austin, TXHalf Marathon, 10K +1
5K, 3 weeks before race day, 29 mi away, registration open
Oct 18Burnet, TX5K
5K, 3 weeks before race day, 34 mi away, registration open
Straight-line distance
Nov 7Dripping Springs, TX52K, Marathon +3
10 mi from Big Texas Ultra, the same weekend as Big Texas Ultra, registration open
Nov 8Marble Falls, TX50K, Marathon +3
21 mi from Big Texas Ultra, the same weekend as Big Texas Ultra, registration open
Oct 24Marble Falls, TX50 mi, 12 hr +5
21 mi from Big Texas Ultra, 2 weeks before Big Texas Ultra, registration open
Nov 27Marble Falls, TX250K, 100 mi +6
21 mi from Big Texas Ultra, 3 weeks after Big Texas Ultra, registration open
Straight-line distance
Oct 10Del Rio, TXMarathon
Oct 10Bastrop, TXBackyard Ultra, 50K +7
Oct 10Houston, TX2 mi
Oct 10Denison, TX50K, Marathon +3
Oct 10Weslaco, TX10 mi, 10K +1
Oct 10Bastrop, TXBackyard Ultra
Oct 10Glen Rose, TX100K, 50K +3
Oct 10Somerville, TX50K, Marathon +3
Oct 11Edinburg, TX5K, 1 mi
Oct 17Tyler, TX24 hr
Oct 17Galveston, TX50K, Half Marathon +3
Oct 17Burnet, TX50K, Marathon +3
May 1, 2027Johnson City, TX100K, 50K +3
Dec 5Dripping Springs, TXBackyard Ultra
Nov 7Dripping Springs, TX52K, Marathon +3
Feb 20, 2027Marble Falls, TX50 mi, 50K +4
Oct 24Marble Falls, TX50 mi, 12 hr +5
Nov 8Marble Falls, TX50K, Marathon +3
Nov 27Marble Falls, TX250K, 100 mi +6
Dec 31Multiple Cities, TX50K, 15K +2
Jun 12, 2027Spring Branch, TX50K, 25K +1
Oct 31Burnett, TX30 mi
Jan 23, 2027San Antonio, TX50K, 25K +2
Nov 7San Felipe, TXBackyard Ultra, 3 mi
Nov 7San Antonio, TX15K, 8K
Nov 7Bluff Dale, TX10K, 5K
Nov 14Stephenville, TX10K, 5K
Nov 14San Antonio, TX100 mi, 100K +4
Nov 14Warda, TX50 mi, 50K +2
Build your aid station plan, organize your crew, and dial in your nutrition strategy. Everything you need to finish strong.
Build my planAre you the race director for Big Texas Ultra?
Claim this race to manage registration, volunteers, and race day.