#cavemanfunrun
Join us for the sixth Annual Caveman Fun Run!
Saturday, May 9th, 2025: Flying V Trails

Newcastle, WY
5K, 10K, and 20K Trail races!
And…this year…we have added a 20K mountain bike race!
Register below today!
And we offer free registration for 16 and under for all distances!
The Bent Sprockets club would like to invite you to Newcastle, Wyoming, to the Flying V trails for a fun trail race in memory of Bill Kohlbrand. Bill enjoyed being outside, whether cruising a timber sale, riding his mountain bike, or spending time outside with family or friends. He also had a vision to build local trails for generations to enjoy, including both the Serenity Trails as well as the Flying V Trail system. Bent Sprockets has picked up and continued his vision by maintaining and expanding the local trails.
The Flying V trail system is the perfect place to honor Bill’s vision and enjoy a day on the trails. While our main goal was to get people outside and show off our wonderful trails, any proceeds from the race will help continue trail work and improve local access to our natural areas.
Click on the Course Overview page for more details.
Schedule
- Caveman Fun Run begins at 8 am
- Awards around 11:00 am
Where
Flying V Trails: located about 8 miles north of Newcastle, WY on US Highway 85. On the east side of the highway, across from the Flying V Cambria Inn.

Parking: Parking for participants will be allowed at the Flying V Trails parking lot, with overflow parking across the highway at the Flying V Cambria Inn parking lot. See the map below for directions from the overflow parking area to the trailhead. Walk up the abandoned road, coming out across from the Flying V Trailhead access road. Signs and volunteers will also be present to help direct traffic.

Registration
Registration for each distance will be as follows:
- 5K – $35
- 10K – $35
- 20K – $35
- 20K Mountain Bike Race – $35
- And, we also offer free registration for 16 and under! So get out there and join us!
We are still working on setting up free registration for 16 & under through Ultrasignup.
Those interested in going for a hike are also welcome to join us. We love sharing our trails with everyone!
Again, this year, the First 25 to register will receive a free tree or shrub from the Weston County Natural Resource District. Participants will get to choose between a lilac or a northern hackberry tree.
Also, all participants who register by May 1st will be guaranteed a unique participant race souvenir.
Register by clicking on the Ultrasignup registration link above.
No Refunds: Due to the upfront costs and fees associated with organizing this event, no refunds or rollovers will be given for registrations. If the race is canceled for conditions beyond our control, we reserve the right to retain the entire balance of the entry fee. Thank you for understanding.
Communication & Medical Support
We would also like to thank the Weston County Sheriff’s Search and Rescue for providing communication services between the aid station and the start/finish area and medical support!




