the stoke races

Illustrated event poster for Roxborough Ultras trail race featuring a runner on a winding trail, red rock formations, and a stylized bird over a mountain landscape.

roxborough ultras august 15, 2025

Roxborough 50 Mile

The Roxborough 50 Mile starts in Roxborough State Park and finishes at the Sharptail Trailhead, carrying runners from red rock formations into the high country and back down to the Front Range. The day wraps up at a proper finish area with food trucks, New Terrain Brewing, and space to actually hang out—the kind of finish that feels earned after a long day on the trail.

ROXBOROUGH 50 MILE — COURSE OVERVIEW

  • Begins in Roxborough State Park, climbing steadily out of the park and up to Carpenter Peak.

  • From Carpenter Peak, the course continues into Pike National Forest above Waterton.

  • A long out-and-back on the Colorado Trail, reaching the junction where Segment 1 meets Segment 2.

  • The middle miles feature extended climbs and descents, some lasting several miles at a time, breaking rhythm and demanding smart pacing.

  • Leaves the Colorado Trail and heads toward Indian Creek Campground.

  • Finishes with a fast, flowy ~10-mile descent into Sharptail, rewarding runners who still have legs left to run.

Predominantly singletrack throughout. Sustained climbing early, demanding rolling terrain through the middle of the race, and a long runnable descent to the finish.

  • Distance: 50.2 miles

  • Elevation Gain: 9,337 feet

  • Terrain: Predominantly singletrack with sections of forest service road. Long exposures and sustained climbs.

  • Execution: Fully supported with aid stations positioned to facilitate a focused effort from start to finish. Final ~10 miles is runnable descent into shartpail.

Roxborough 50K

Start: Roxborough State Park
Finish: Sharptail Trailhead — food trucks, New Terrain Brewing, and a proper finish hang.

ROXBOROUGH 50K — COURSE OVERVIEW

  • Begins in Roxborough State Park, climbing steadily out of the park and up to Carpenter Peak.

  • From Carpenter Peak, the course continues into Pike National Forest above Waterton.

  • The route trends through the same high terrain as the 50 Mile, with sustained climbs and descents throughout the middle miles.

  • Heads toward Indian Creek Campground before turning downhill.

  • Finishes with the same fast, flowy downhill miles into Sharptail as the 50 Mile.

Predominantly singletrack throughout, with long climbs early, demanding rolling terrain through the middle of the race, and an extended runnable descent to the finish.

Technical Details

  • Distance: 31.1 miles

  • Elevation Gain: 5,279 feet

  • Terrain: Technical singletrack, sandstone technical features, and rolling montane valleys.

  • Execution: Fully supported with aid at optimal locations and a flowing descent to the finish.

Stewardship

This race exists because of trust.

Roxborough Ultras is the first event ever permitted to host a trail race within Roxborough State Park. That opportunity is not something we take lightly. We are deeply grateful to Roxborough State Park, the U.S. Forest Service, and Douglas County Open Space for their partnership, guidance, and confidence in our ability to steward this landscape responsibly.

Every aspect of this event — from course design to runner experience — is shaped by that responsibility. The routes are intentional, the footprint is minimized, and the emphasis is on respect: for the land, for the agencies that protect it, and for the runners who show up prepared to meet it on its own terms.

Beyond race day, we plan to host trail work days in coordination with park and forest service teams as a way to give back to the places that make these events possible. Stewardship here is ongoing, not symbolic.

This race is not about spectacle. It’s about earning the right to be here, doing the work the right way, and leaving the place better than we found it.

The rox ultras phoenix

A symbol for the hard stretches — the miles where it stops being fun and turns into work. The phoenix is grit earned in effort, not borrowed from hype: the quiet choice to stay present, stay steady, and keep moving.

what makes the stoke races different

A dirt trail winds through grassy hills with yellow wildflowers, with green shrubs and trees on either side. Rocky mountains and a cloudy sky are in the distance.

intentional course design

Every mile is placed on purpose. No filler loops, no novelty detours, no manufactured difficulty. The Roxborough courses favor continuity and flow — long runnable stretches balanced with technical sections that reward focus and patience.

A dirt trail running through grassy hills under a partly cloudy sky with mountains in the distance.

focused, runner-first execution

Aid stations are thoughtfully spaced, clearly stocked, and run by experienced crews who understand what runners actually need deep into a race. The goal isn’t spectacle — it’s consistency, clarity, and support that allows you to stay in rhythm from start to finish.

Green grassy hillside with yellow wildflowers leading to red rock formations and rolling hills under a cloudy sky.

respect for place

These races exist because of trust. We are committed to minimizing impact, working closely with land managers, and giving back through coordinated trail work days with park and forest service teams. Showing up prepared, racing responsibly, and leaving the place better than we found it is part of the agreement.