Flat grade share
- Wild Duluth Races Ultramarathon
- 25.7% Favoured
Wild Duluth Races Ultramarathon vs Wild Duluth Races Half Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofWild Duluth Races Ultramarathon or Wild Duluth Races Half Marathon — which comes out ahead?
Wild Duluth Races Ultramarathon has the stronger available profile on flat grade share and course flatness.
Route comparison snapshot
Wild Duluth Races Ultramarathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 8.0% Favoured
- flat grade share
- 25.7% Favoured
- lower ascent
- 2,801 m
- climbing density
- 28.0 m/km
- net elevation
- -0 m
- maximum grade
- 35.8%
Wild Duluth Races Half Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 9.8%
- flat grade share
- 22.1%
- lower ascent
- 687 m
- climbing density
- 32.6 m/km
- net elevation
- 29 m
- maximum grade
- 33.3%
| Metric | Wild Duluth Races Ultramarathon | Wild Duluth Races Half Marathon |
|---|---|---|
| Flat grade share | 25.7% ✓ | 22.1% |
| GAP factor (% slower than flat) | 8.0% ✓ | 9.8% |
| Uphill share | 37.1% | 36.9% |
| Steep-up share | 20.1% | 21.7% |
| Downhill share | 37.2% | 41.0% |
| Total ascent (m) | 2,801 m | 687 m |
| Climbing density (m/km) | 28.0 m/km | 32.6 m/km |
| Longest climb length (m) | 1,900 m | 750 m |
| Longest climb gain (m) | 170 m | 93 m |
| Longest climb average grade | 9.0% | 12.4% |
| Total descent (m) | 2,801 m | 659 m |
| Net elevation (m) | -0 m | 29 m |
| Max absolute grade | 35.8% | 33.3% |
| Start elevation (m) | 184 m | 188 m |
| Finish elevation (m) | 184 m | 216 m |
| Scenic score | 100/100 | 100/100 |
| Conditions | 80/100 | 80/100 |
GAP factor (% slower than flat)
- Wild Duluth Races Ultramarathon
- 8.0% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- Wild Duluth Races Ultramarathon
- 28.0 m/km
- Wild Duluth Races Half Marathon
- 32.6 m/km
Longest climb length (m)
Longest climb gain (m)
Longest climb average grade
Total descent (m)
Net elevation (m)
Max absolute grade
Start elevation (m)
Finish elevation (m)
Scenic score
Conditions
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.
Same-distance comparisons are most meaningful; cross-distance metrics are contextual.
Race facts that change the decision
| Fact | Wild Duluth Races Ultramarathon | Wild Duluth Races Half Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-10-17 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-10-17 (legacy event-level date). |
| Location | Duluth, Minnesota | Duluth, Minnesota |
| Actual distance | 100 km | 21.1 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Point To Point | Point To Point |
| Surface | About 99% of the 100K and 50K course follows the Superior Hiking Trail: extremely rugged, hilly singletrack laced with rocks and roots, mixed with wide grassy trails, mountain bike trails, some paved sections and short road walks. | Unavailable |
| Elevation character | Mountainous | Hilly |
| Terrain | Trail | Trail |
| Scenery | Forest, Lakeside, Riverside, Waterfront, City, Mountain, Parkland | Forest, Lakeside, Riverside, Waterfront, City, Mountain, Parkland |
| Atmosphere | Community, Scenic Tour, Wilderness | Community, Scenic Tour, Wilderness |
| Technicality | Very Technical | Technical |
| Total ascent | 2,801 m | 687 m |
| Climbing density | 28.0 m/km | 32.6 m/km |
| Total descent | 2,801 m | 659 m |
| Net elevation | -0 m | 29 m |
| Max absolute grade | 35.8% | 33.3% |
| Flat grade share | 25.7% | 22.1% |
| GAP factor | 8.0% | 9.8% |
| Cutoff | 18:00:00 | Unavailable |
| Field cap | 200 | 350 |
| Entry model | Open | Open |
Schedule
- Wild Duluth Races Ultramarathon
Exact race date not confirmed. Event weekend starts 2026-10-17 (legacy event-level date).
- Wild Duluth Races Half Marathon
Exact race date not confirmed. Event weekend starts 2026-10-17 (legacy event-level date).
Location
- Wild Duluth Races Ultramarathon
- Duluth, Minnesota
- Wild Duluth Races Half Marathon
- Duluth, Minnesota
Actual distance
- Wild Duluth Races Ultramarathon
- 100 km
- Wild Duluth Races Half Marathon
- 21.1 km
raceindex.org mapped route held
- Wild Duluth Races Ultramarathon
- Held
- Wild Duluth Races Half Marathon
- Held
raceindex.org elevation profile held
- Wild Duluth Races Ultramarathon
- Held
- Wild Duluth Races Half Marathon
- Held
Course type
- Wild Duluth Races Ultramarathon
- Point To Point
- Wild Duluth Races Half Marathon
- Point To Point
Surface
- Wild Duluth Races Ultramarathon
- About 99% of the 100K and 50K course follows the Superior Hiking Trail: extremely rugged, hilly singletrack laced with rocks and roots, mixed with wide grassy trails, mountain bike trails, some paved sections and short road walks.
- Wild Duluth Races Half Marathon
- Unavailable
Elevation character
- Wild Duluth Races Ultramarathon
- Mountainous
- Wild Duluth Races Half Marathon
- Hilly
Terrain
- Wild Duluth Races Ultramarathon
- Trail
- Wild Duluth Races Half Marathon
- Trail
Scenery
- Wild Duluth Races Ultramarathon
- Forest, Lakeside, Riverside, Waterfront, City, Mountain, Parkland
- Wild Duluth Races Half Marathon
- Forest, Lakeside, Riverside, Waterfront, City, Mountain, Parkland
Atmosphere
- Wild Duluth Races Ultramarathon
- Community, Scenic Tour, Wilderness
- Wild Duluth Races Half Marathon
- Community, Scenic Tour, Wilderness
Technicality
- Wild Duluth Races Ultramarathon
- Very Technical
- Wild Duluth Races Half Marathon
- Technical
Total ascent
- Wild Duluth Races Ultramarathon
- 2,801 m
- Wild Duluth Races Half Marathon
- 687 m
Climbing density
- Wild Duluth Races Ultramarathon
- 28.0 m/km
- Wild Duluth Races Half Marathon
- 32.6 m/km
Total descent
- Wild Duluth Races Ultramarathon
- 2,801 m
- Wild Duluth Races Half Marathon
- 659 m
Net elevation
- Wild Duluth Races Ultramarathon
- -0 m
- Wild Duluth Races Half Marathon
- 29 m
Max absolute grade
- Wild Duluth Races Ultramarathon
- 35.8%
- Wild Duluth Races Half Marathon
- 33.3%
Flat grade share
- Wild Duluth Races Ultramarathon
- 25.7%
- Wild Duluth Races Half Marathon
- 22.1%
GAP factor
- Wild Duluth Races Ultramarathon
- 8.0%
- Wild Duluth Races Half Marathon
- 9.8%
Cutoff
- Wild Duluth Races Ultramarathon
- 18:00:00
- Wild Duluth Races Half Marathon
- Unavailable
Field cap
- Wild Duluth Races Ultramarathon
- 200
- Wild Duluth Races Half Marathon
- 350
Entry model
- Wild Duluth Races Ultramarathon
- Open
- Wild Duluth Races Half Marathon
- Open
Facts are shown only when they exist in the sourced race record; Not held means no sourced value is held for that race.
Common questions
Which is flatter, Wild Duluth Races Ultramarathon or Wild Duluth Races Half Marathon?
Wild Duluth Races Ultramarathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.