Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Ultramarathon vs Extreme North Dakota Sandhills Ultra Run Experience (END-SURE)
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as of
Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Ultramarathon or Extreme North Dakota Sandhills Ultra Run Experience (END-SURE) — which comes out ahead?
The available sourced metrics do not create a clear lead; use the table to compare the held route, cost and race-day evidence.
Route comparison snapshot
Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Ultramarathon
Mapped route
Not held
Elevation profile
Not held
Extreme North Dakota Sandhills Ultra Run Experience (END-SURE)
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
Extreme North Dakota's Terrifying Run Amongst Innumerable Lost Souls (END-TRAILS) Ultramarathon
Extreme North Dakota Sandhills Ultra Run Experience (END-SURE)
Location
Arvilla, North Dakota
McLeod, North Dakota
Actual distance
50 km
100 km
RaceIndex mapped route held
Not held
Not held
RaceIndex elevation profile held
Not held
Not held
Course type
Laps
Out And Back
Surface
Trail
Mix of singletrack trail, sandy 'sandhills' terrain, and gravel road.
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 .