Flat grade share
- JFK 50 Mile Ultramarathon
- Unavailable
JFK 50 Mile Ultramarathon vs Patapsco Valley 50K Ultramarathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofJFK 50 Mile Ultramarathon or Patapsco Valley 50K Ultramarathon — which comes out ahead?
JFK 50 Mile Ultramarathon has the stronger available profile on scenery score and conditions.
Route comparison snapshot
JFK 50 Mile Ultramarathon
- Mapped route
- Not held
- Elevation profile
- Not held
- course flatness
- Unavailable
- flat grade share
- Unavailable
- lower ascent
- Unavailable
- climbing density
- Unavailable
- net elevation
- Unavailable
- maximum grade
- Unavailable
Patapsco Valley 50K Ultramarathon
- Mapped route
- Held Favoured
- Elevation profile
- Held Favoured
- course flatness
- 6.6%
- flat grade share
- 26.0%
- lower ascent
- 1,387 m
- climbing density
- 27.7 m/km
- net elevation
- -6 m
- maximum grade
- 31.6%
| Metric | JFK 50 Mile Ultramarathon | Patapsco Valley 50K Ultramarathon |
|---|---|---|
| Flat grade share | Unavailable | 26.0% |
| GAP factor (% slower than flat) | Unavailable | 6.6% |
| Uphill share | Unavailable | 39.1% |
| Steep-up share | Unavailable | 18.1% |
| Downhill share | Unavailable | 34.9% |
| Total ascent (m) | Unavailable | 1,387 m |
| Climbing density (m/km) | Unavailable | 27.7 m/km |
| Longest climb length (m) | Unavailable | 610 m |
| Longest climb gain (m) | Unavailable | 50 m |
| Longest climb average grade | Unavailable | 8.1% |
| Total descent (m) | Unavailable | 1,394 m |
| Net elevation (m) | Unavailable | -6 m |
| Max absolute grade | Unavailable | 31.6% |
| Start elevation (m) | Unavailable | 112 m |
| Finish elevation (m) | Unavailable | 105 m |
| Scenic score | 100/100 ✓ | 95/100 |
| Conditions | 88/100 ✓ | 82/100 |
GAP factor (% slower than flat)
- JFK 50 Mile Ultramarathon
- Unavailable
Uphill share
- JFK 50 Mile Ultramarathon
- Unavailable
Steep-up share
- JFK 50 Mile Ultramarathon
- Unavailable
Downhill share
- JFK 50 Mile Ultramarathon
- Unavailable
Total ascent (m)
- JFK 50 Mile Ultramarathon
- Unavailable
Climbing density (m/km)
- JFK 50 Mile Ultramarathon
- Unavailable
- Patapsco Valley 50K Ultramarathon
- 27.7 m/km
Longest climb length (m)
- JFK 50 Mile Ultramarathon
- Unavailable
Longest climb gain (m)
- JFK 50 Mile Ultramarathon
- Unavailable
Longest climb average grade
- JFK 50 Mile Ultramarathon
- Unavailable
Total descent (m)
- JFK 50 Mile Ultramarathon
- Unavailable
Net elevation (m)
- JFK 50 Mile Ultramarathon
- Unavailable
Max absolute grade
- JFK 50 Mile Ultramarathon
- Unavailable
Start elevation (m)
- JFK 50 Mile Ultramarathon
- Unavailable
Finish elevation (m)
- JFK 50 Mile Ultramarathon
- Unavailable
Scenic score
- JFK 50 Mile Ultramarathon
- 100/100 Favoured
Conditions
- JFK 50 Mile Ultramarathon
- 88/100 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 | JFK 50 Mile Ultramarathon | Patapsco Valley 50K Ultramarathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-11-21 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-10-24 (legacy event-level date). |
| Location | Boonsboro to Williamsport, Washington County, Maryland | Catonsville, Maryland |
| Actual distance | 80.5 km | 50 km |
| raceindex.org mapped route held | Not held | Held |
| raceindex.org elevation profile held | Not held | Held |
| Course type | Point To Point | Laps |
| Surface | Mixed: road start, rocky Appalachian Trail (miles 2.5 15.5), unpaved C&O Canal towpath (15.5 41.8), paved country roads (final 8.4 miles). | Trail |
| Elevation character | Unavailable | Hilly |
| Terrain | Trail, Towpath, Road, Mixed | Trail |
| Scenery | Countryside, Waterfront, Mountain, Forest, Riverside, Historic | Forest, Riverside, Lakeside, Historic, Parkland |
| Atmosphere | Community, Destination | Wilderness, Community |
| Technicality | Moderate | Technical |
| Total ascent | Unavailable | 1,387 m |
| Climbing density | Unavailable | 27.7 m/km |
| Total descent | Unavailable | 1,394 m |
| Net elevation | -36 m | -6 m |
| Max absolute grade | Unavailable | 31.6% |
| Flat grade share | Unavailable | 26.0% |
| GAP factor | Unavailable | 6.6% |
| Cutoff | 13:00:00 | 10:00:00 |
| Field cap | 1,000 | Unavailable |
| Entry model | Open | Open |
Schedule
- JFK 50 Mile Ultramarathon
Exact race date not confirmed. Event weekend starts 2026-11-21 (legacy event-level date).
- Patapsco Valley 50K Ultramarathon
Exact race date not confirmed. Event weekend starts 2026-10-24 (legacy event-level date).
Location
- JFK 50 Mile Ultramarathon
- Boonsboro to Williamsport, Washington County, Maryland
- Patapsco Valley 50K Ultramarathon
- Catonsville, Maryland
Actual distance
- JFK 50 Mile Ultramarathon
- 80.5 km
- Patapsco Valley 50K Ultramarathon
- 50 km
raceindex.org mapped route held
- JFK 50 Mile Ultramarathon
- Not held
- Patapsco Valley 50K Ultramarathon
- Held
raceindex.org elevation profile held
- JFK 50 Mile Ultramarathon
- Not held
- Patapsco Valley 50K Ultramarathon
- Held
Course type
- JFK 50 Mile Ultramarathon
- Point To Point
- Patapsco Valley 50K Ultramarathon
- Laps
Surface
- JFK 50 Mile Ultramarathon
- Mixed: road start, rocky Appalachian Trail (miles 2.5 15.5), unpaved C&O Canal towpath (15.5 41.8), paved country roads (final 8.4 miles).
- Patapsco Valley 50K Ultramarathon
- Trail
Elevation character
- JFK 50 Mile Ultramarathon
- Unavailable
- Patapsco Valley 50K Ultramarathon
- Hilly
Terrain
- JFK 50 Mile Ultramarathon
- Trail, Towpath, Road, Mixed
- Patapsco Valley 50K Ultramarathon
- Trail
Scenery
- JFK 50 Mile Ultramarathon
- Countryside, Waterfront, Mountain, Forest, Riverside, Historic
- Patapsco Valley 50K Ultramarathon
- Forest, Riverside, Lakeside, Historic, Parkland
Atmosphere
- JFK 50 Mile Ultramarathon
- Community, Destination
- Patapsco Valley 50K Ultramarathon
- Wilderness, Community
Technicality
- JFK 50 Mile Ultramarathon
- Moderate
- Patapsco Valley 50K Ultramarathon
- Technical
Total ascent
- JFK 50 Mile Ultramarathon
- Unavailable
- Patapsco Valley 50K Ultramarathon
- 1,387 m
Climbing density
- JFK 50 Mile Ultramarathon
- Unavailable
- Patapsco Valley 50K Ultramarathon
- 27.7 m/km
Total descent
- JFK 50 Mile Ultramarathon
- Unavailable
- Patapsco Valley 50K Ultramarathon
- 1,394 m
Net elevation
- JFK 50 Mile Ultramarathon
- -36 m
- Patapsco Valley 50K Ultramarathon
- -6 m
Max absolute grade
- JFK 50 Mile Ultramarathon
- Unavailable
- Patapsco Valley 50K Ultramarathon
- 31.6%
Flat grade share
- JFK 50 Mile Ultramarathon
- Unavailable
- Patapsco Valley 50K Ultramarathon
- 26.0%
GAP factor
- JFK 50 Mile Ultramarathon
- Unavailable
- Patapsco Valley 50K Ultramarathon
- 6.6%
Cutoff
- JFK 50 Mile Ultramarathon
- 13:00:00
- Patapsco Valley 50K Ultramarathon
- 10:00:00
Field cap
- JFK 50 Mile Ultramarathon
- 1,000
- Patapsco Valley 50K Ultramarathon
- Unavailable
Entry model
- JFK 50 Mile Ultramarathon
- Open
- Patapsco Valley 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.