Flat grade share
- Bath & Bristol Railway Races Ultramarathon
- 96.7% Favoured
Cairngorms Ultra Trail vs Bath & Bristol Railway Races Ultramarathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofCairngorms Ultra Trail or Bath & Bristol Railway Races Ultramarathon — which comes out ahead?
Bath & Bristol Railway Races Ultramarathon has the stronger available profile on flat grade share, course flatness and value score.
Route comparison snapshot
Cairngorms Ultra Trail
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 2.8%
- flat grade share
- 46.5%
- lower ascent
- 948 m
- climbing density
- 15.8 m/km
- net elevation
- -1 m
- maximum grade
- 25.0%
Bath & Bristol Railway Races Ultramarathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.1% Favoured
- flat grade share
- 96.7% Favoured
- lower ascent
- 136 m
- climbing density
- 2.7 m/km
- net elevation
- 1 m
- maximum grade
- 6.7%
| Metric | Cairngorms Ultra Trail | Bath & Bristol Railway Races Ultramarathon |
|---|---|---|
| Flat grade share | 46.5% | 96.7% ✓ |
| GAP factor (% slower than flat) | 2.8% | 0.1% ✓ |
| Uphill share | 26.0% | 1.6% |
| Steep-up share | 8.0% | 0.1% |
| Downhill share | 27.6% | 1.7% |
| Total ascent (m) | 948 m | 136 m |
| Climbing density (m/km) | 15.8 m/km | 2.7 m/km |
| Longest climb length (m) | 3,550 m | 3,370 m |
| Longest climb gain (m) | 187 m | 44 m |
| Longest climb average grade | 5.3% | 1.3% |
| Total descent (m) | 949 m | 135 m |
| Net elevation (m) | -1 m | 1 m |
| Max absolute grade | 25.0% | 6.7% |
| Start elevation (m) | 340 m | 18 m |
| Finish elevation (m) | 339 m | 19 m |
| Value | 78/100 | 78/100 ✓ |
| Scenic score | 100/100 ✓ | 83/100 |
| Conditions | 87/100 ✓ | 81/100 |
| Entry fee (GBP) | £67 | £65 ✓ |
| Lowest modelled true cost (GBP) | £197 | £195 ✓ |
GAP factor (% slower than flat)
- Bath & Bristol Railway Races Ultramarathon
- 0.1% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- Cairngorms Ultra Trail
- 15.8 m/km
Longest climb length (m)
- Cairngorms Ultra Trail
- 3,550 m
Longest climb gain (m)
Longest climb average grade
Total descent (m)
Net elevation (m)
Max absolute grade
Start elevation (m)
Finish elevation (m)
Value
- Cairngorms Ultra Trail
- 78/100
- Bath & Bristol Railway Races Ultramarathon
- 78/100 Favoured
Scenic score
- Cairngorms Ultra Trail
- 100/100 Favoured
Conditions
- Cairngorms Ultra Trail
- 87/100 Favoured
Entry fee (GBP)
- Bath & Bristol Railway Races Ultramarathon
- £65 Favoured
Lowest modelled true cost (GBP)
- Bath & Bristol Railway Races Ultramarathon
- £195 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 | Cairngorms Ultra Trail | Bath & Bristol Railway Races Ultramarathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-06-13 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-10-11 (legacy event-level date). |
| Location | Braemar, Scotland | Bath, South West |
| Actual distance | 60 km | 50 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Loop | Unavailable |
| Surface | 33% singletrack trail (20km), 62% off Road ATV tracks / forest roads (38.5km), 5% minor roads (3.5km) | Essentially 100% tarmac, aside from a small amount of grass at the start and finish |
| Elevation character | Hilly | Flat |
| Terrain | Road, Trail, Mixed | Road, Mixed, Trail |
| Scenery | Mountain, Countryside, Parkland, Forest, Moorland, Riverside, Lakeside | Riverside, Countryside, Historic, City, Parkland |
| Atmosphere | Wilderness, Scenic Tour, Destination | Scenic Tour |
| Technicality | Moderate | Non Technical |
| Total ascent | 948 m | 136 m |
| Climbing density | 15.8 m/km | 2.7 m/km |
| Total descent | 949 m | 135 m |
| Net elevation | -1 m | 1 m |
| Max absolute grade | 25.0% | 6.7% |
| Flat grade share | 46.5% | 96.7% |
| GAP factor | 2.8% | 0.1% |
| Cutoff | 12:30:00 | 8:30:00 |
| Entry model | Open | Open |
| Entry fee | £67 | £65 |
| Lowest modelled true cost | £197 | £195 |
| Cost model origin | National Average | National Average |
| Measured course | Unavailable | Yes |
Schedule
- Cairngorms Ultra Trail
Exact race date not confirmed. Event weekend starts 2026-06-13 (legacy event-level date).
- Bath & Bristol Railway Races Ultramarathon
Exact race date not confirmed. Event weekend starts 2026-10-11 (legacy event-level date).
Location
- Cairngorms Ultra Trail
- Braemar, Scotland
- Bath & Bristol Railway Races Ultramarathon
- Bath, South West
Actual distance
- Cairngorms Ultra Trail
- 60 km
- Bath & Bristol Railway Races Ultramarathon
- 50 km
raceindex.org mapped route held
- Cairngorms Ultra Trail
- Held
- Bath & Bristol Railway Races Ultramarathon
- Held
raceindex.org elevation profile held
- Cairngorms Ultra Trail
- Held
- Bath & Bristol Railway Races Ultramarathon
- Held
Course type
- Cairngorms Ultra Trail
- Loop
- Bath & Bristol Railway Races Ultramarathon
- Unavailable
Surface
- Cairngorms Ultra Trail
- 33% singletrack trail (20km), 62% off Road ATV tracks / forest roads (38.5km), 5% minor roads (3.5km)
- Bath & Bristol Railway Races Ultramarathon
- Essentially 100% tarmac, aside from a small amount of grass at the start and finish
Elevation character
- Cairngorms Ultra Trail
- Hilly
- Bath & Bristol Railway Races Ultramarathon
- Flat
Terrain
- Cairngorms Ultra Trail
- Road, Trail, Mixed
- Bath & Bristol Railway Races Ultramarathon
- Road, Mixed, Trail
Scenery
- Cairngorms Ultra Trail
- Mountain, Countryside, Parkland, Forest, Moorland, Riverside, Lakeside
- Bath & Bristol Railway Races Ultramarathon
- Riverside, Countryside, Historic, City, Parkland
Atmosphere
- Cairngorms Ultra Trail
- Wilderness, Scenic Tour, Destination
- Bath & Bristol Railway Races Ultramarathon
- Scenic Tour
Technicality
- Cairngorms Ultra Trail
- Moderate
- Bath & Bristol Railway Races Ultramarathon
- Non Technical
Total ascent
- Cairngorms Ultra Trail
- 948 m
- Bath & Bristol Railway Races Ultramarathon
- 136 m
Climbing density
- Cairngorms Ultra Trail
- 15.8 m/km
- Bath & Bristol Railway Races Ultramarathon
- 2.7 m/km
Total descent
- Cairngorms Ultra Trail
- 949 m
- Bath & Bristol Railway Races Ultramarathon
- 135 m
Net elevation
- Cairngorms Ultra Trail
- -1 m
- Bath & Bristol Railway Races Ultramarathon
- 1 m
Max absolute grade
- Cairngorms Ultra Trail
- 25.0%
- Bath & Bristol Railway Races Ultramarathon
- 6.7%
Flat grade share
- Cairngorms Ultra Trail
- 46.5%
- Bath & Bristol Railway Races Ultramarathon
- 96.7%
GAP factor
- Cairngorms Ultra Trail
- 2.8%
- Bath & Bristol Railway Races Ultramarathon
- 0.1%
Cutoff
- Cairngorms Ultra Trail
- 12:30:00
- Bath & Bristol Railway Races Ultramarathon
- 8:30:00
Entry model
- Cairngorms Ultra Trail
- Open
- Bath & Bristol Railway Races Ultramarathon
- Open
Entry fee
- Cairngorms Ultra Trail
- £67
- Bath & Bristol Railway Races Ultramarathon
- £65
Lowest modelled true cost
- Cairngorms Ultra Trail
- £197
- Bath & Bristol Railway Races Ultramarathon
- £195
Cost model origin
- Cairngorms Ultra Trail
- National Average
- Bath & Bristol Railway Races Ultramarathon
- National Average
Measured course
- Cairngorms Ultra Trail
- Unavailable
- Bath & Bristol Railway Races Ultramarathon
- Yes
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, Cairngorms Ultra Trail or Bath & Bristol Railway Races Ultramarathon?
Bath & Bristol Railway Races Ultramarathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.