Running With The Bulls
Oct 10Waco, TX5K, 1 mi
5K, 3 weeks before race day, 1 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 planRedwood Shelter
Cameron Park
Waco, TX US 76710
The Chupacabra Trail Run is the last race in the Huaco Cuatro Trail Run Series.
Course Time Limit
All 15K Trail Run participants need to complete the course in 3 1/2 hours. This is a 22.5 minute/mile pace.
Notes:
Dogs and baby joggers are not allowed on the course for safety reasons.
Registration opens
Nov 24, 2025
Tier 1 ends
Oct 4, 2026
Registration closes
Oct 30, 2026
Standard ends
Oct 30, 2026
Tier 2 ends
Oct 30, 2026
Race day
Oct 31, 2026
15K Trail Run
Tier 2, until Oct 30, 2026
$55
5K Trail Run
Tier 2, until Oct 30, 2026
$50
Virtual Trail Run
Standard, until Oct 30, 2026
$35
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 10Waco, TX5K, 1 mi
5K, 3 weeks before race day, 1 mi away, registration open
Oct 10Woodway, TX5K, 1 mi
5K, 3 weeks before race day, 5 mi away, registration open
Oct 11Waco, TXHalf Marathon, 6.55 mi +2
5K, 3 weeks before race day, 1 mi away, registration open
Oct 10Temple, TXHalf Marathon, 10K +1
5K, 3 weeks before race day, 33 mi away, registration open
Straight-line distance
Nov 7Bluff Dale, TX10K, 5K
Also a 5K, 75 mi from Chupacabra Trail Run, registration open
Oct 10Glen Rose, TX100K, 50K +3
Also a 5K, 59 mi from Chupacabra Trail Run, registration open
Oct 24College Station, TXHalf Marathon, 10K +1
Also a 5K, 80 mi from Chupacabra Trail Run, registration open
Nov 14Stephenville, TX10K, 5K
Also a 5K, 77 mi from Chupacabra Trail Run, registration open
Straight-line distance
Oct 10Bastrop, TXBackyard Ultra, 50K +7
Oct 10Denison, TX50K, Marathon +3
Oct 10Weslaco, TX10 mi, 10K +1
Oct 10Glen Rose, TX100K, 50K +3
Oct 10Somerville, TX50K, Marathon +3
Oct 11Edinburg, TX5K, 1 mi
Oct 17Galveston, TX50K, Half Marathon +3
Oct 17Burnet, TX50K, Marathon +3
Oct 17Mt Pleasant, TX100K, 50 mi +3
Oct 17Plano, TX5K
Oct 17Leakey, TX50K, 35K +2
Oct 24The Woodlands, TX5K
Apr 3, 2027Waco, TX50 mi, 50K +3
Jul 17, 2027Glen Rose, TX8 hr, 6 hr +4
Nov 21Glen Rose, TX100 mi, 100K +3
Nov 7Bluff Dale, TX10K, 5K
Nov 14Stephenville, TX10K, 5K
Oct 24College Station, TXHalf Marathon, 10K +1
Oct 31Burnett, TX30 mi
Oct 17Fort Worth, TX5 mi, 2 mi
Mar 13, 2027Fort Worth, TX58K, 28 mi +3
Apr 3, 2027Fort Worth, TX50K, 25K +2
Oct 10Bastrop, TXBackyard Ultra
Oct 17Tyler, TX24 hr
Build your aid station plan, organize your crew, and dial in your nutrition strategy. Everything you need to finish strong.
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Claim this race to manage registration, volunteers, and race day.