Flat grade share
- Bath & Bristol Railway Races Marathon
- 97.6% Favoured
Bath & Bristol Railway Races Marathon vs NLB Ljubljana Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofBath & Bristol Railway Races Marathon or NLB Ljubljana Marathon — which comes out ahead?
Bath & Bristol Railway Races Marathon has the stronger available profile on flat grade share, course flatness and scenery score.
Route comparison snapshot
Bath & Bristol Railway Races Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.1% Favoured
- flat grade share
- 97.6% Favoured
- lower ascent
- 98 m
- climbing density
- 2.3 m/km
- net elevation
- 1 m
- maximum grade
- 6.7%
NLB Ljubljana Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.1%
- flat grade share
- 94.6%
- lower ascent
- 112 m
- climbing density
- 2.7 m/km
- net elevation
- -1 m
- maximum grade
- 7.0%
| Metric | Bath & Bristol Railway Races Marathon | NLB Ljubljana Marathon |
|---|---|---|
| Flat grade share | 97.6% ✓ | 94.6% |
| GAP factor (% slower than flat) | 0.1% ✓ | 0.1% |
| Uphill share | 1.2% | 2.5% |
| Steep-up share | 0.1% | 0.1% |
| Downhill share | 1.1% | 2.9% |
| Total ascent (m) | 98 m | 112 m |
| Climbing density (m/km) | 2.3 m/km | 2.7 m/km |
| Longest climb length (m) | 1,050 m | 870 m |
| Longest climb gain (m) | 18 m | 10 m |
| Longest climb average grade | 1.7% | 1.2% |
| Total descent (m) | 97 m | 113 m |
| Net elevation (m) | 1 m | -1 m |
| Max absolute grade | 6.7% | 7.0% |
| Start elevation (m) | 18 m | 297 m |
| Finish elevation (m) | 19 m | 296 m |
| Value | 79/100 | Unavailable |
| Scenic score | 83/100 ✓ | 77/100 |
| Conditions | 81/100 | 89/100 ✓ |
| Entry fee (GBP) | £60 | Unavailable |
| Lowest modelled true cost (GBP) | £190 | Unavailable |
GAP factor (% slower than flat)
- Bath & Bristol Railway Races Marathon
- 0.1% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- NLB Ljubljana Marathon
- 2.7 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)
Value
- NLB Ljubljana Marathon
- Unavailable
Scenic score
- Bath & Bristol Railway Races Marathon
- 83/100 Favoured
- NLB Ljubljana Marathon
- 77/100
Conditions
- NLB Ljubljana Marathon
- 89/100 Favoured
Entry fee (GBP)
- NLB Ljubljana Marathon
- Unavailable
Lowest modelled true cost (GBP)
- NLB Ljubljana Marathon
- Unavailable
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 | Bath & Bristol Railway Races Marathon | NLB Ljubljana Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-10-11 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-10-17 (legacy event-level date). |
| Location | Bath, South West | Ljubljana, Slovenia |
| Actual distance | 42.2 km | 42.2 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Out And Back | Unavailable |
| Surface | Essentially 100% tarmac, aside from a small amount of grass at the start and finish | Paved city roads (asphalt). |
| Elevation character | Unavailable | Flat |
| Terrain | Trail | Road |
| Scenery | Riverside, Countryside, Historic, City, Parkland | City, Historic, Riverside, Parkland, Forest |
| Atmosphere | Scenic Tour | Big City, Festival, Scenic Tour |
| Technicality | Unavailable | Non Technical |
| Total ascent | 98 m | 112 m |
| Climbing density | 2.3 m/km | 2.7 m/km |
| Total descent | 97 m | 113 m |
| Net elevation | 1 m | -1 m |
| Max absolute grade | 6.7% | 7.0% |
| Flat grade share | 97.6% | 94.6% |
| GAP factor | 0.1% | 0.1% |
| Cutoff | 7:30:00 | 6:00:00 |
| Entry model | Open | Open |
| Entry fee | £60 | Unavailable |
| Lowest modelled true cost | £190 | Unavailable |
| Cost model origin | National Average | Unavailable |
| Measured course | Yes | Unavailable |
Schedule
- Bath & Bristol Railway Races Marathon
Exact race date not confirmed. Event weekend starts 2026-10-11 (legacy event-level date).
- NLB Ljubljana Marathon
Exact race date not confirmed. Event weekend starts 2026-10-17 (legacy event-level date).
Location
- Bath & Bristol Railway Races Marathon
- Bath, South West
- NLB Ljubljana Marathon
- Ljubljana, Slovenia
Actual distance
- Bath & Bristol Railway Races Marathon
- 42.2 km
- NLB Ljubljana Marathon
- 42.2 km
raceindex.org mapped route held
- Bath & Bristol Railway Races Marathon
- Held
- NLB Ljubljana Marathon
- Held
raceindex.org elevation profile held
- Bath & Bristol Railway Races Marathon
- Held
- NLB Ljubljana Marathon
- Held
Course type
- Bath & Bristol Railway Races Marathon
- Out And Back
- NLB Ljubljana Marathon
- Unavailable
Surface
- Bath & Bristol Railway Races Marathon
- Essentially 100% tarmac, aside from a small amount of grass at the start and finish
- NLB Ljubljana Marathon
- Paved city roads (asphalt).
Elevation character
- Bath & Bristol Railway Races Marathon
- Unavailable
- NLB Ljubljana Marathon
- Flat
Terrain
- Bath & Bristol Railway Races Marathon
- Trail
- NLB Ljubljana Marathon
- Road
Scenery
- Bath & Bristol Railway Races Marathon
- Riverside, Countryside, Historic, City, Parkland
- NLB Ljubljana Marathon
- City, Historic, Riverside, Parkland, Forest
Atmosphere
- Bath & Bristol Railway Races Marathon
- Scenic Tour
- NLB Ljubljana Marathon
- Big City, Festival, Scenic Tour
Technicality
- Bath & Bristol Railway Races Marathon
- Unavailable
- NLB Ljubljana Marathon
- Non Technical
Total ascent
- Bath & Bristol Railway Races Marathon
- 98 m
- NLB Ljubljana Marathon
- 112 m
Climbing density
- Bath & Bristol Railway Races Marathon
- 2.3 m/km
- NLB Ljubljana Marathon
- 2.7 m/km
Total descent
- Bath & Bristol Railway Races Marathon
- 97 m
- NLB Ljubljana Marathon
- 113 m
Net elevation
- Bath & Bristol Railway Races Marathon
- 1 m
- NLB Ljubljana Marathon
- -1 m
Max absolute grade
- Bath & Bristol Railway Races Marathon
- 6.7%
- NLB Ljubljana Marathon
- 7.0%
Flat grade share
- Bath & Bristol Railway Races Marathon
- 97.6%
- NLB Ljubljana Marathon
- 94.6%
GAP factor
- Bath & Bristol Railway Races Marathon
- 0.1%
- NLB Ljubljana Marathon
- 0.1%
Cutoff
- Bath & Bristol Railway Races Marathon
- 7:30:00
- NLB Ljubljana Marathon
- 6:00:00
Entry model
- Bath & Bristol Railway Races Marathon
- Open
- NLB Ljubljana Marathon
- Open
Entry fee
- Bath & Bristol Railway Races Marathon
- £60
- NLB Ljubljana Marathon
- Unavailable
Lowest modelled true cost
- Bath & Bristol Railway Races Marathon
- £190
- NLB Ljubljana Marathon
- Unavailable
Cost model origin
- Bath & Bristol Railway Races Marathon
- National Average
- NLB Ljubljana Marathon
- Unavailable
Measured course
- Bath & Bristol Railway Races Marathon
- Yes
- NLB Ljubljana Marathon
- Unavailable
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, Bath & Bristol Railway Races Marathon or NLB Ljubljana Marathon?
Bath & Bristol Railway Races Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.