In 95 days · Sat, Oct 10, 2026
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Saturday, October 10th, 2026
High Hope Ranch and Retreat Center, Glen Rose TX
Ultra · 10K · 5K
About this race
The Mammoth Trail Run 2026
Get ready for The Mammoth Race Glen Rose FALL migration. This multi-distance trail run welcomes families and runners of all skill levels. Enjoy the Hill Country that surrounds this stunning ONE THOUSAND acre ranch. We can't wait to see you out there!
Event Details
- Date: 2026-10-10
- Location: High Hope Ranch and Eco-Retreat, Glen Rose, TX
- Distances: 100K, 50K, 25K, 10K, 5K, Mighty Mammoth 1K Fun Run
- Course: Two sections - a 3.5-mile loop and a 7-mile loop
Race Categories
- 100K: 26hr Cut-off time
- 50K:
- 25K:
- 10K:
- 5K:
- Mighty Mammoth 1K Fun Run: NON-CHIP TIMED EVENT
Race Highlights
- Finisher Shirts: All participants will receive
- Cut Offs: Generous Cut Off times - Cut off time for 100K only!
- Finisher Buckles: For 100K Ultra
- Scenic Routes: Through pristine natural landscapes
- Aid Stations: Well-marked trails and 'round the clock aid stations
- Camping: Exclusive sites for tent camping and boondocking (no hook-ups)
- Post-Race Celebration: Music, food, and refreshments!
Additional Info
- Pets: are not allowed. USATF sanctioned event policy does not allow for animals to participate in competitions.
- Enviro-Friendly: The Mammoth is an Enviro-Friendly Event - B.Y.O.B (Bring Your Own Bottle)
Weather Policy
RAIN or SHINE. In the event of inclement weather that would threaten the safety of the racers, the event or courses may be altered or the event may be delayed or canceled.
Race Day Schedule
- 100K: 07:00 am
- 50K: 07:15 am
- 25K: 07:30 am
- 10K: 07:45 am
- 5K: 08:00 am
- 1K: 10:00 am
Classic Swag
- Official Race Shirt: All participants will receive a Mammoth Race OFFICIAL Race shirt and a Finisher's Medal.
- Finisher Buckles: for 100K ULTRAS
Awards
- No Place Finisher Awards: BRAGGING RIGHTS ONLY
Packet Pick-Up
- Race Day: on site
Parking
- Includes: Entrance and Parking
Overnight Camping
- Fee: $10 per PERSON. NOT included in registration. Max 6 people per site. PAYABLE AT THE GATE
Refunds/Transfers
- Entry Fees: are NON-REFUNDABLE, however TRANSFERS to another Person, Category or Mammoth Event are allowed.
Course Maps
Viewable HERE
More Information
For further details, visit the official race page: The Mammoth at High Hope Endurance Ranch.
Course map
Train with a club
Run clubs near Glen Rose to train with before race day.
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