Bob Marshall Trail Races Ultramarathon vs Crazy Mountain 100 Ultramarathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as of
Bob Marshall Trail Races Ultramarathon or Crazy Mountain 100 Ultramarathon — which comes out ahead?
Bob Marshall Trail Races Ultramarathon and Crazy Mountain 100 Ultramarathon split the available advantages, so the better choice depends on which metric matters most to the runner.
Only metrics available for at least one side are shown. A ✓ marks the better value for each metric (higher-is-better aware). Scores are out of 100 when available. Ascent, climbing density, max absolute grade and median finish describe course or field context and are not marked as better or worse.
Race facts that change the decision
Race facts comparison
Fact
Bob Marshall Trail Races Ultramarathon
Crazy Mountain 100 Ultramarathon
Race date
2026-07-18
2026-07-24
Location
Seeley Lake, Montana
Big Timber, Montana
Actual distance
50 km
160.9 km
RaceIndex mapped route held
Not held
Held
RaceIndex elevation profile held
Not held
Not held
Course type
Laps
Point To Point
Surface
Mix of maintained Nordic ski trails, rugged singletrack and Forest Service roads; no pavement.
Primarily single track with sections of forest road and two Track; steep backcountry terrain with scree fields and stretches where runners follow cairns and ridgelines.
Elevation character
Rolling
Mountainous
Terrain
Trail, Mixed, Road
Trail, Mixed
Scenery
Forest, Countryside, Mountain, Lakeside
Mountain, Forest, Coastal, Lakeside, Countryside
Atmosphere
Wilderness, Scenic Tour, Destination
Wilderness, Scenic Tour
Technicality
Moderate
Very Technical
Total ascent
Unavailable
7,010 m
Net elevation
10,475,450,300 m
Unavailable
Cutoff
8:30:00
36:00:00
Field cap
Unavailable
200
Entry model
Open
Mixed
Race date
Bob Marshall Trail Races Ultramarathon
2026-07-18
Crazy Mountain 100 Ultramarathon
2026-07-24
Location
Bob Marshall Trail Races Ultramarathon
Seeley Lake, Montana
Crazy Mountain 100 Ultramarathon
Big Timber, Montana
Actual distance
Bob Marshall Trail Races Ultramarathon
50 km
Crazy Mountain 100 Ultramarathon
160.9 km
RaceIndex mapped route held
Bob Marshall Trail Races Ultramarathon
Not held
Crazy Mountain 100 Ultramarathon
Held
RaceIndex elevation profile held
Bob Marshall Trail Races Ultramarathon
Not held
Crazy Mountain 100 Ultramarathon
Not held
Course type
Bob Marshall Trail Races Ultramarathon
Laps
Crazy Mountain 100 Ultramarathon
Point To Point
Surface
Bob Marshall Trail Races Ultramarathon
Mix of maintained Nordic ski trails, rugged singletrack and Forest Service roads; no pavement.
Crazy Mountain 100 Ultramarathon
Primarily single track with sections of forest road and two Track; steep backcountry terrain with scree fields and stretches where runners follow cairns and ridgelines.
Elevation character
Bob Marshall Trail Races Ultramarathon
Rolling
Crazy Mountain 100 Ultramarathon
Mountainous
Terrain
Bob Marshall Trail Races Ultramarathon
Trail, Mixed, Road
Crazy Mountain 100 Ultramarathon
Trail, Mixed
Scenery
Bob Marshall Trail Races Ultramarathon
Forest, Countryside, Mountain, Lakeside
Crazy Mountain 100 Ultramarathon
Mountain, Forest, Coastal, Lakeside, Countryside
Atmosphere
Bob Marshall Trail Races Ultramarathon
Wilderness, Scenic Tour, Destination
Crazy Mountain 100 Ultramarathon
Wilderness, Scenic Tour
Technicality
Bob Marshall Trail Races Ultramarathon
Moderate
Crazy Mountain 100 Ultramarathon
Very Technical
Total ascent
Bob Marshall Trail Races Ultramarathon
Unavailable
Crazy Mountain 100 Ultramarathon
7,010 m
Net elevation
Bob Marshall Trail Races Ultramarathon
10,475,450,300 m
Crazy Mountain 100 Ultramarathon
Unavailable
Cutoff
Bob Marshall Trail Races Ultramarathon
8:30:00
Crazy Mountain 100 Ultramarathon
36:00:00
Field cap
Bob Marshall Trail Races Ultramarathon
Unavailable
Crazy Mountain 100 Ultramarathon
200
Entry model
Bob Marshall Trail Races Ultramarathon
Open
Crazy Mountain 100 Ultramarathon
Mixed
Facts are shown only when they exist in the sourced race record; Not held means no sourced value is held for that race.
Published facts and derived model outputs on this page are tied to stored sources or a published, version-locked methodology. We show the provenance so runners, coaches and organisers can check it. Data on this page is current as of .