Flat grade share
- Chuckanut 50k Ultramarathon
- 40.7% Favoured
Cascade Crest 100 Ultramarathon vs Chuckanut 50k Ultramarathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofCascade Crest 100 Ultramarathon or Chuckanut 50k Ultramarathon — which comes out ahead?
Chuckanut 50k Ultramarathon has the stronger available profile on flat grade share and conditions.
Route comparison snapshot
Cascade Crest 100 Ultramarathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- Unavailable
- flat grade share
- 20.3%
- lower ascent
- 6,253 m
- climbing density
- 38.9 m/km
- net elevation
- -15 m
- maximum grade
- 50.0%
Chuckanut 50k Ultramarathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 8.6%
- flat grade share
- 40.7% Favoured
- lower ascent
- 1,416 m
- climbing density
- 28.3 m/km
- net elevation
- -5 m
- maximum grade
- 34.9%
| Metric | Cascade Crest 100 Ultramarathon | Chuckanut 50k Ultramarathon |
|---|---|---|
| Flat grade share | 20.3% | 40.7% ✓ |
| GAP factor (% slower than flat) | Unavailable | 8.6% |
| Uphill share | 39.2% | 29.0% |
| Steep-up share | 27.9% | 18.4% |
| Downhill share | 40.5% | 30.3% |
| Total ascent (m) | 6,253 m | 1,416 m |
| Climbing density (m/km) | 38.9 m/km | 28.3 m/km |
| Longest climb length (m) | 5,840 m | 2,340 m |
| Longest climb gain (m) | 810 m | 216 m |
| Longest climb average grade | 13.9% | 9.2% |
| Total descent (m) | 6,268 m | 1,422 m |
| Net elevation (m) | -15 m | -5 m |
| Max absolute grade | 50.0% | 34.9% |
| Start elevation (m) | 677 m | 61 m |
| Finish elevation (m) | 662 m | 56 m |
| Scenic score | 100/100 | 100/100 |
| Conditions | 37/100 | 85/100 ✓ |
GAP factor (% slower than flat)
- Cascade Crest 100 Ultramarathon
- Unavailable
Uphill share
Steep-up share
Downhill share
Total ascent (m)
- Chuckanut 50k Ultramarathon
- 1,416 m
Climbing density (m/km)
- Cascade Crest 100 Ultramarathon
- 38.9 m/km
- Chuckanut 50k Ultramarathon
- 28.3 m/km
Longest climb length (m)
- Chuckanut 50k Ultramarathon
- 2,340 m
Longest climb gain (m)
Longest climb average grade
Total descent (m)
- Chuckanut 50k Ultramarathon
- 1,422 m
Net elevation (m)
Max absolute grade
Start elevation (m)
Finish elevation (m)
Scenic score
- Chuckanut 50k Ultramarathon
- 100/100
Conditions
- Chuckanut 50k Ultramarathon
- 85/100 Favoured
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
| Fact | Cascade Crest 100 Ultramarathon | Chuckanut 50k Ultramarathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-07-17 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2027-03-20 (legacy event-level date). |
| Location | Easton, Washington | Bellingham, Washington |
| Actual distance | 160.9 km | 50 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Loop | Loop |
| Surface | 70% trail, 26% forest road, 4% paved road | 100% un Paved trails |
| Elevation character | Mountainous | Mountainous |
| Terrain | Trail, Gravel | Trail, Gravel |
| Scenery | Mountain, Forest, Countryside, Lakeside | Mountain, City, Countryside, Forest, Lakeside, Coastal |
| Atmosphere | Wilderness, Nighttime, Destination | Wilderness, Competitive, Destination |
| Technicality | Very Technical | Technical |
| Total ascent | 6,253 m | 1,416 m |
| Climbing density | 38.9 m/km | 28.3 m/km |
| Total descent | 6,268 m | 1,422 m |
| Net elevation | -15 m | -5 m |
| Max absolute grade | 50.0% | 34.9% |
| Flat grade share | 20.3% | 40.7% |
| GAP factor | Unavailable | 8.6% |
| Cutoff | 34:00:00 | 8:00:00 |
| Field cap | 180 | Unavailable |
| Entry model | Ballot | Open |
Schedule
- Cascade Crest 100 Ultramarathon
Exact race date not confirmed. Event weekend starts 2026-07-17 (legacy event-level date).
- Chuckanut 50k Ultramarathon
Exact race date not confirmed. Event weekend starts 2027-03-20 (legacy event-level date).
Location
- Cascade Crest 100 Ultramarathon
- Easton, Washington
- Chuckanut 50k Ultramarathon
- Bellingham, Washington
Actual distance
- Cascade Crest 100 Ultramarathon
- 160.9 km
- Chuckanut 50k Ultramarathon
- 50 km
raceindex.org mapped route held
- Cascade Crest 100 Ultramarathon
- Held
- Chuckanut 50k Ultramarathon
- Held
raceindex.org elevation profile held
- Cascade Crest 100 Ultramarathon
- Held
- Chuckanut 50k Ultramarathon
- Held
Course type
- Cascade Crest 100 Ultramarathon
- Loop
- Chuckanut 50k Ultramarathon
- Loop
Surface
- Cascade Crest 100 Ultramarathon
- 70% trail, 26% forest road, 4% paved road
- Chuckanut 50k Ultramarathon
- 100% un Paved trails
Elevation character
- Cascade Crest 100 Ultramarathon
- Mountainous
- Chuckanut 50k Ultramarathon
- Mountainous
Terrain
- Cascade Crest 100 Ultramarathon
- Trail, Gravel
- Chuckanut 50k Ultramarathon
- Trail, Gravel
Scenery
- Cascade Crest 100 Ultramarathon
- Mountain, Forest, Countryside, Lakeside
- Chuckanut 50k Ultramarathon
- Mountain, City, Countryside, Forest, Lakeside, Coastal
Atmosphere
- Cascade Crest 100 Ultramarathon
- Wilderness, Nighttime, Destination
- Chuckanut 50k Ultramarathon
- Wilderness, Competitive, Destination
Technicality
- Cascade Crest 100 Ultramarathon
- Very Technical
- Chuckanut 50k Ultramarathon
- Technical
Total ascent
- Cascade Crest 100 Ultramarathon
- 6,253 m
- Chuckanut 50k Ultramarathon
- 1,416 m
Climbing density
- Cascade Crest 100 Ultramarathon
- 38.9 m/km
- Chuckanut 50k Ultramarathon
- 28.3 m/km
Total descent
- Cascade Crest 100 Ultramarathon
- 6,268 m
- Chuckanut 50k Ultramarathon
- 1,422 m
Net elevation
- Cascade Crest 100 Ultramarathon
- -15 m
- Chuckanut 50k Ultramarathon
- -5 m
Max absolute grade
- Cascade Crest 100 Ultramarathon
- 50.0%
- Chuckanut 50k Ultramarathon
- 34.9%
Flat grade share
- Cascade Crest 100 Ultramarathon
- 20.3%
- Chuckanut 50k Ultramarathon
- 40.7%
GAP factor
- Cascade Crest 100 Ultramarathon
- Unavailable
- Chuckanut 50k Ultramarathon
- 8.6%
Cutoff
- Cascade Crest 100 Ultramarathon
- 34:00:00
- Chuckanut 50k Ultramarathon
- 8:00:00
Field cap
- Cascade Crest 100 Ultramarathon
- 180
- Chuckanut 50k Ultramarathon
- Unavailable
Entry model
- Cascade Crest 100 Ultramarathon
- Ballot
- Chuckanut 50k Ultramarathon
- Open
Facts are shown only when they exist in the sourced race record; Not held means no sourced value is held for that race.