Races

Wyoming Range 100

Big Piney, WyomingAugust

Middle Piney Lake to Box Y Ranch. One hundred five miles through the Bridger-Teton. Wyoming Peak at 11,378. Bear spray mandatory. Remote alpine miles.

105.7 mi+17,091 ft-19,305 ft48 hours6,336 ft to 11,019 fttech 6/10Checkpoints per race bookHardrock qualifierWyoming Peakbear spray requiredAugust
Distance105.7 mi
Gain+17,091 ft
Loss-19,305 ft
Altitude6,336 ft to 11,019 ft
Technicality6/10
Air30°F to 80°F
Gradient profileOfficial race GPX
  • Start8,878 ft
  • High11,019 ft
  • Low6,336 ft
  • Finish6,663 ft
Aid stations10 stops editorial
  1. Aid 1 at mile 10.0
  2. Aid 2 at mile 20
  3. Aid 3 at mile 30
  4. McDougal Gap at mile 55, cutoff 22 hours
  5. Aid 5 at mile 65
  6. Aid 6 at mile 75
  7. Grizzly Basin at mile 84, cutoff 36 hours
  8. Aid 8 at mile 92
  9. Aid 9 at mile 98
  10. Finish Box Y Ranch at mile 106, cutoff 48 hours

Field, 2026 · 7-year samplescraped

Starters91
Finish rate64%
Median41:44
Fastest25:38

Geometryderived

Steepest drop2,425 ft-20.5% over 2.2 mi
Night miles28 misunset near 19:00 local
Time over 10k ft11%

Course records

Men25:38:02Cody Poskin2026 scraped
Women27:47:37Ginny Robbins2023 scraped

The cruxWyoming Peak at mile 10 and McDougal Gap at 22 hours (near mile 69)

Course DNA

The Course

Wyoming Range 100 runs 105.7 mi through Big Piney, Wyoming. +17,091 ft gain and -19,305 ft loss. Surfaces skew 90% trail / 10% dirt road. Wyoming Peak at mile 10 and McDougal Gap at 22 hours. High point near 11,019 ft. Low near 6,336 ft. August temps run 30°F to 80°F. The course rewards patience early and punishes rushed descents after mile 53.

The Work

Train for 17,091 feet of climbing across 105.7 mi. Back-to-back long runs on trail. Practice power-hiking grades above 15 percent. 48 hours total means limited margin: rehearse fueling every 45 to 60 minutes and downhill eccentric work weekly. Technicality 6/10. Build a block that simulates the crux near mile 69.

Kit

August in Big Piney, Wyoming: plan for 30°F to 80°F. Mandatory shell if rain is in forecast. Headlamp with spare batteries if 48 hours pushes past dark. Poles help on sustained climbs above mile 26. Vest capacity for 2 liters minimum. Shoes matched to 90% trail: lugs for mud, rock plate if the course turns technical after mile 53.

Race Day

Hold effort through mile 26. The field often splits on the first big climb after mile 53. Wyoming Peak at mile 10 and McDougal Gap at 22 hours near mile 69 is where time is won or lost. Walk the steep pinches. Run the flats and gentle downhills. Crew at major aids: socks, calories, ice if hot. Transitions under 5 minutes when possible. Final third is 35 miles of fatigue management. Finish with reserve for the last descent.

Results

Wyoming Range 100 finish lines.

Wyoming Range 100

100 MilerBox Y Ranch

Sources (2)

Wyoming Range 100