GAP factor 1.3% slower than flat · net elevation 10 m
Decision summary
Lower than 61% of comparable mapped races
32:00:00 total cut-off
Historical race-date favourability, not a forecast
Verified GPS route
Quick answers
RaceIndex has a GPS course file for Lean Horse Ultra Marathon, so runners can inspect the route line on the map. Elevation charts and ascent figures appear only when that file includes usable elevation data.
The Lean Horse Ultra Marathon route has 1,791 m of ascent, 1,781 m of descent and an estimated 1.3% grade-adjusted pace penalty versus a flat route.
The Lean Horse Ultra Marathon route starts at Custer YMCA (100 Mile); Custer Football/Track Complex (50/30/20 Mile) and finishes at Custer, South Dakota. Underfoot, expect crushed limestone (former railroad bed). It passes George S. Mickelson Trail, Black Hills, Hill City and Custer.
Pacers allowed on the 100 Mile race for the final 50 miles only; not permitted for shorter distances.
The stored route produces 1,791 m of ascent, while a source states 2,183 m. GPS sampling and elevation models can produce different totals, so both are labelled rather than combined.
Its normalised GAP factor is 1.3% slower than a flat course, with about 1791 m of total ascent.