The Mammoth at High Hope Ranch 100K - 50K - 25K - 10K - 5K and Mighty Mammoth 1K Fun Run

  • Date Sat 11th October 2025 - Sun 12th October 2025
  • Time 7:00AM CDT
  • Location Glen Rose, Texas
  • Price Free - $165.30
  • Races 7 races
  • Distances Ultra, 10km, 5km, 1km

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Event summary

Join us for the inaugural Mammoth at High Hope Ranch, a thrilling multi-distance trail running event set to take place from October 11th to 12th, 2025, in the picturesque Glen Rose, Somervell. This exciting event invites runners and families of all skill levels to experience the breathtaking beauty of a sprawling 1,000-acre Eco-Retreat, surrounded by the stunning Hill Country and adjacent to the Fossil Rim Wildlife Center. Participants can choose from a variety of race distances including the challenging 100K, 50K, 25K, 10K, 5K, or the fun-filled Mighty Mammoth 1K Fun Run, making it an ideal occasion to celebrate the vibrant fall season.

Runners will enjoy scenic routes through pristine natural landscapes, well-marked trails, and round-the-clock aid stations to support them throughout the race. The event kicks off at 7 am on Saturday, with the 100K and other races starting in succession until 10 am for the 1K. All participants will receive a Mammoth Race official shirt and a finisher's medal, with special finisher buckles awarded for the 100K ultra category. With a post-race celebration featuring music

Organiser's Description

Get ready for The Mammoth Race inaugural Fall Migration at Hope Ranch! Our multi-distance trail run welcomes families and runners of all skill. Enjoy the Hill Country that surrounds this stunning ONE THOUSAND acre Eco-Retreat. The ranch is dedicated to wildlife habitat protection, biodynamic agriculture and neighbors Fossil Rim Wildlife Center. It is a fantastic way to celebrate the Fall Season. We can't wait to see you out there!



The Mammoth at High Hope Ranch is a multi-distance trail running event located on the trails High Hope Ranch and Eco-Retreat. Distances offered are 100K, 50K, 25K, 10K, 5K and The Mighty Mammoth 1K FUN RUN. There will be two sections of the course: a 3.3-mile loop and a 7-mile loop. Both loops combined equal a 10.3-mile lap. The event will run from 7 am on Saturday morning until 9 am on Sunday morning. The starting line and Main Race Hub will be the main lodge on the Ranch. There are two aid stations on course: Main lodge at the starting line, and Matazamo ranch house. Aid stations are approximately 3.3 miles apart.
RACE CATEGORIES:

* 100K - 26hr Cut-off time
* 50K
* 25K
* 10K
* 5K
* Mighty Mammoth 1K Fun Run - NON-CHIP TIMED EVENT.

RACE HIGHLIGHTS:

* Finisher Shirts and Medals
* Generous Cut Off times - Cut off time for 100K only!
* Finisher BUCKLES for 100K Ultra
* Scenic routes through pristine natural landscapes
* Well-marked trails and 'round the clock aid stations
* 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.
* The Mammoth is an Enviro-Friendly Event - B.Y.O.B (Bring Your Own Bottle)

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 - 07:00am
* 50K - 07:15am
* 25K - 07:30am
* 10K - 07:45am
* 5K - 08:00am
* 1K - 10:00am

CLASSIC SWAG

* 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

* TBD

PARKING

* Price INCLUDES Entrance and Parking

OVERNIGHT CAMPING

* $10 per Vehicle. NOT included in registration. Max 6 people per site. PAYABLE AT THE GATE

REFUNDS/TRANSFERS

* Race Entry Fees are NON-REFUNDABLE, however TRANSFERS to another Person, Category or Mammoth Event are allowed.

COURSE MAPS - Coming Soon!

Races

  • 100K Ultra Trail Run

    Incl. $10.30 Fee & T-Shirt

    Sat 11th October 2025 (7:00AM CDT)

    $165.30

  • 50K Trail Tun

    Incl. $7.90 Fee & T-Shirt

    Sat 11th October 2025 (7:15AM CDT)

    $122.90

  • 25K Trail Run

    Incl. $6.10 Fee & T-Shirt

    Sat 11th October 2025 (7:30AM CDT)

    $91.10

  • 10K Trail Run

    Incl. $4.90 Fee & T-Shirt

    Sat 11th October 2025 (7:45AM CDT)

    $69.90

  • 5K Trail Run

    Incl. $4.30 Fee & T-Shirt

    Sat 11th October 2025 (8:00AM CDT)

    $59.30

  • The Mighty Mammoth 1K Fun Run

    Incl. $2.50 Fee & T-Shirt

    Sat 11th October 2025 (10:00AM CDT)

    $27.50

    Ages 11 and under. Adults RUN FREE! Up to TWO with each child registration. Non Chipped timed event.
  • PACER - 100K Ultra Trail Run

    Sat 11th October 2025 (7:00AM CDT)

    Free

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Location

High Hope Ranch and Retreat Center, Glen Rose, 76043, TX, United States

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Oct 11, 2025

Free - $165.30