- Weather
- 58°Ftypical startModelled estimate
- Field size
- ~1,000 runners
- Course
- Rolling
- Elevation
- 800 ft gain
Dramatic Rocky Mountain vistas
PR5Weather8Experience7
Early June · Mountain West · Loop / Out-and-Back
Run Yellowstone Marathon
West Yellowstone, MT · Saturday, July 31, 2027
Starts near West Yellowstone, one of the main gateway towns into Yellowstone National Park, through Gallatin National Forest terrain at real elevation. Rolling, not flat.
High-elevation Gallatin forest scenery
Opens the race organizer's website
Typical start
56°
Cooler than 14% of U.S. marathons
Modeled historical conditions
Elevation gain
800ft
Flatter than 15% of races
Estimated total climb
Field size
800
Larger than 31% of races
Estimated field
PR potential
5.5/10
Ahead of 17% of races
Almanac model
Percentiles compare this race against all 224 U.S. marathons in the Almanac.
Course profile
800 ft gain · 0 ft net
Rolling course, loop / out-and-back.
0510152026.2
Race-day weather
Modeled from location, month and coastal proximity, not verified race history.
6 AM
48°
Start
56°
Midday
67°
ExcellentGoodWarmHeat risk
Typical start sits at 56°F, good conditions.
Typical dew point 44°F, 16% chance of precipitation, wind around 7 mph. All modeled.
The bottom line
A small race that trades atmosphere for room to run.
Run Yellowstone Marathon is a strong choice for a first marathon, and the course rolls gently without any sustained climbing. The tradeoff is atmosphere: expect long quiet stretches and few spectators.
Why runners choose this race
A out-and-back course around West Yellowstone, MT, with steady rollers that reward even pacing.
The case for it
- Runners who want a low-key start
The tradeoffs
- You want crowds and on-course energy
- You have not trained at altitude
Course and logistics
- Course type
- Loop / Out-and-Back
- Surface
- Road
- Profile
- Rolling
- Total gain
- 800 ft(estimated)
- Total loss
- 800 ft(estimated)
- Net elevation
- 0 ft(estimated)
- Field size
- ~800 runners(estimated)
- Crowd support
- Quiet, low-key
- Entry
- Data coming soon
- Start / finish
- Start and finish in the same area
Race details
- Typical timing
- Early June
- Next confirmed date
- Saturday, July 31, 2027
- Region
- Mountain West
- Editorial tier
- Featured
- Data last reviewed
- 2026-08-26
- Out-and-back
- Loop course
- Destination race
Similar races
Races with a comparable profile.
- Weather
- 56°Ftypical startModelled estimate
- Field size
- ~300 runners
- Course
- Rolling
- Elevation
- 400 ft gain · 0 ft net
Event listed as: Marathon
PR7Weather8Experience6
Late May · Mountain West
Whitefish Marathon, Half Marathon & 5K Presented by Hammer Nutrition
Whitefish, MT
- Weather
- 42°Ftypical startModelled estimate
- Field size
- ~600 runners
- Course
- Rolling
- Elevation
- 400 ft gain · 0 ft net
Event listed as: Marathon
PR7Weather9Experience7