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