Bobcat Trail Races
Oct 17Colorado Springs, CO50K, 25K +2
25K, 7 weeks before race day, 55 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 Human Potential Running Series Presents:
The Sawmill Trail Runs @ Staunton State Park
The Sawmill Trail Runs; first started as a “Fat Ass” event at White Ranch Open Space in Golden, CO in December 2013. We incorporated it into an official trail race starting in December 2017. In 2021, this event was moved to its new home at Staunton State Park in Pine, CO featuring 50k, 16-Mile, and 8-Mile distance options.
Staunton State Park is a gem within Colorado’s State Park system. From high grassy meadows at 8,100 feet to soaring granite cliffs over 10,000 feet, Staunton State Park’s varied geology, soils, water features, and climate support rare and unexpected plant communities and a rich diversity of wildlife and provide a myriad of outdoor recreation opportunities. The park is located approximately 40 miles southwest of downtown Denver, north of US Highway 285 and about six miles west of Conifer in Pine, CO.
Special Event Notes: Traction devices such as micro-spikes are welcome should conditions permit. Snowshoes will also be permitted in the event of snow depths exceeding 6″. No other flotation devices will be approved. In the event of deep snow and treacherous conditions on the 50k’s first loop, the loop will be closed and we’ll ask 50k runners to endure the 16-Mile course, twice consecutively.
Registration opens
Oct 1, 2026
Tier 1 ends
Oct 9, 2026
Tier 2 ends
Nov 17, 2026
Registration closes
Dec 3, 2026
Tier 3 ends
Dec 3, 2026
Race day
Dec 5, 2026
50k
Tier 1, then $150 from Oct 9, 2026
$130
16-Mile
Tier 1, then $100 from Oct 9, 2026
$80
8-Mile
Tier 1, then $80 from Oct 9, 2026
$60
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 17Colorado Springs, CO50K, 25K +2
25K, 7 weeks before race day, 55 mi away, registration open
Oct 17Sedalia, CO50 mi, 55K +2
25K, 7 weeks before race day, 27 mi away, registration open
Oct 31Centennial, COHalf Marathon, 10K +2
Half Marathon, 5 weeks before race day, 34 mi away, registration open
Nov 1Golden, COHalf Marathon, 10K +1
Half Marathon, 5 weeks before race day, 26 mi away, registration open
Straight-line distance
Oct 17Colorado Springs, CO50K, 25K +2
Also 50K, 55 mi from Sawmill Trail Runs, registration open
Oct 17Sedalia, CO50 mi, 55K +2
Also 50K, 27 mi from Sawmill Trail Runs, registration open
Oct 24Canon City, CO35 mi, 50K +2
Also 50K, 71 mi from Sawmill Trail Runs, registration open
Nov 21Colorado Springs, CO50K, Half Marathon +1
Also 50K, 54 mi from Sawmill Trail Runs
Straight-line distance
Oct 10Pine, CO50K, 25K +1
Oct 17Colorado Springs, CO50K, 25K +2
Oct 17Sedalia, CO50 mi, 55K +2
Oct 24Canon City, CO35 mi, 50K +2
Nov 7Fruita, CO50 mi, 40 mi +3
Nov 15Golden, CO50K
Nov 21Colorado Springs, CO50K, Half Marathon +1
Apr 8, 2027Fruita, CO100K, 50K +1
Apr 17, 2027Colorado Springs, CO50K, 25K +2
Apr 24, 2027Colorado Springs, CO50K, 25K +2
May 8, 2027Colorado Springs, CO50K, Marathon +4
May 15, 2027De Beque, CO50K
Jan 9, 2027Sedalia, CO21.6 mi
Oct 31Lakewood, COBackyard Ultra
Oct 25Lakewood, CO15K, 5K
Nov 7Littleton, COHalf Marathon, 10K +2
Jul 26, 2027Frisco, CO
Oct 31Lone Tree, COHalf Marathon
Nov 7Castle Rock, COMarathon, Half Marathon +1
Nov 7Larkspur, CO6 hr
Aug 7, 2027Winter Park, CO50K, 21K +1
Sep 25, 2027Palmer Lake, CO24 hr
Dec 5Estes Park, CO8 hr
Dec 19Estes Park, CO10K
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