← All eventsBighorn Trail 100
A remote Rocky Mountain Slam 100-miler in Wyoming's Bighorn Mountains: ~18,000ft of climbing defined by wildflowers, deep mud, snowmelt and a river crossing, ~34h cutoff. Date approximate (mid-June).
A remote Rocky Mountain 100 defined not by altitude but by mud. Mid-June in Wyoming's Bighorn Mountains means wildflowers, lingering snowmelt and deep, slick trail underfoot.
100 miles out and back from Dayton, with around 18,000ft of climbing and the same again in descent. It threads high meadows, the steep muddy climb they call the Wall, and cold river crossings.
The 34-hour cutoff is generous for 100 miles, so this is a finisher's race, not a sprint. But it is committing, part of the Rocky Mountain Slam, with long legs between aid.
Who finishes, and how
Patterns like these, drawn straight from 2025 race data, are baked into how Beina coaches you for this event.
Is Bighorn Trail 100 for you?
- Runners with a mountain-ultra base who relish bad conditions. Bighorn rewards grit in mud, snowmelt and cold, not raw speed.
- Runners with durable quads. A huge amount of the day is descending on slick, tired-leg trail, and untrained legs fall apart on it.
- Patient power-hikers. The long climbs, including the Wall, reward moving efficiently over trying to race them.
- Self-reliant types comfortable a long way from help. It is remote, with long, committing legs between staffed aid.
Training plan for Bighorn Trail 100
A training plan for Bighorn Trail 100 isn't a generic base build. Beina reads the event's exact demands, looks at your specific profile and the time you actually have, and maps a highly adapted plan to the start line.
- Sustained climbs into the range, then long descents home, both on slick, quad-loading mud
- The Wall: a steep, notoriously muddy climb that demands power-hiking and grip
- Cold river and creek crossings from snowmelt, leaving you with wet feet for hours
- Most of the field runs through the night in cold, exposed high country
- Big-vert mountain days building to 7 to 9 hours, targeting 1,500 to 3,000m of climbing
- Back-to-back long weekends, a 7-hour Saturday then a 5-hour Sunday on tired legs
- Downhill repeats and muddy descent runs to armour your quads for the way home
- Wet-foot and sock-change rehearsals, plus power-hike pole repeats and night runs
- Built from your current fitness and the time you actually have
- Adapts every week as Beina learns how you respond
- Syncs your sessions straight to Garmin and Wahoo
- One clear next session, never a wall of spreadsheet
