All marathons

Mid-July · Mountain West · Point-to-Point

Big Sky Marathon

Ennis, MT

Event: Big Sky Marathon (Full)

  • Best for PR
  • Boston Qualifier
  • Scenic

Registration opens on the organizer's site

Typical start temp
60°F(estimated)
Field size
~300 runners(estimated)
Course
Net downhill
Elevation
200 ft gain · -3,600 ft net(estimated)

Why runners choose this race

A point-to-point course around Ennis, MT, that gives back elevation for most of the race.

Good fit if

  • · PR attempts
  • · Boston qualification
  • · Runners who care about scenery
  • · Runners who want a low-key start

Think twice if

  • · You want crowds and on-course energy

Course and logistics

Course type
Point-to-Point
Surface
Road
Total gain
200 ft(estimated)
Total loss
3,800 ft(estimated)
Net elevation
-3,600 ft(estimated)
Field size
~300 runners(estimated)
Crowd support
Quiet, low-key
Entry
Moderate
Entry fee
$100(most recent listed price)
Day of week
Sunday
Start / finish
Start and finish in different locations

Race details

Typical timing
Mid-July
Next confirmed date
Sunday, July 11, 2027
Registration
Open now
Region
Mountain West
Editorial tier
Recommended
Prestige
6.0/10(estimated)
Data last reviewed
2026-08-26

Event: Big Sky Marathon (Full)

Good to know

  • Best for PR
  • Boston Qualifier
  • Scenic
  • Point-to-point
  • Net downhill

Race-day weather

Modelled from location, month and coastal proximity — not verified race history.

Typical start
60°F(estimated)
By midday
71°F(estimated)
Dew point
48°F(estimated)
ExcellentGoodWarmHeat risk

Typical start sits at 60°F warm for racing.

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