Bath & Bristol Railway Races Marathon or Bath & Bristol Railway Races Ultramarathon — which comes out ahead?

Bath & Bristol Railway Races Marathon has the stronger available profile on flat grade share, course flatness and value 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%

Bath & Bristol Railway Races Ultramarathon

Mapped route
Held
Elevation profile
Held
course flatness
0.1%
flat grade share
96.7%
lower ascent
136 m
climbing density
2.7 m/km
net elevation
1 m
maximum grade
6.7%
Head-to-head comparison
MetricBath & Bristol Railway Races MarathonBath & Bristol Railway Races Ultramarathon
Flat grade share97.6%96.7%
GAP factor (% slower than flat)0.1%0.1%
Uphill share1.2%1.6%
Steep-up share0.1%0.1%
Downhill share1.1%1.7%
Total ascent (m)98 m136 m
Climbing density (m/km)2.3 m/km2.7 m/km
Longest climb length (m)1,050 m3,370 m
Longest climb gain (m)18 m44 m
Longest climb average grade1.7%1.3%
Total descent (m)97 m135 m
Net elevation (m)1 m1 m
Max absolute grade6.7%6.7%
Start elevation (m)18 m18 m
Finish elevation (m)19 m19 m
Value79/10078/100
Scenic score83/10083/100
Conditions81/10081/100
Entry fee (GBP)£60£65
Lowest modelled true cost (GBP)£190£195

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.

Same-distance comparisons are most meaningful; cross-distance metrics are contextual.

Race facts that change the decision

Race facts comparison
FactBath & Bristol Railway Races MarathonBath & Bristol Railway Races Ultramarathon
Schedule

Exact race date not confirmed. Event weekend starts 2026-10-11 (legacy event-level date).

Exact race date not confirmed. Event weekend starts 2026-10-11 (legacy event-level date).

LocationBath, South WestBath, South West
Actual distance42.2 km50 km
raceindex.org mapped route heldHeldHeld
raceindex.org elevation profile heldHeldHeld
Course typeOut And BackUnavailable
SurfaceEssentially 100% tarmac, aside from a small amount of grass at the start and finishEssentially 100% tarmac, aside from a small amount of grass at the start and finish
Elevation characterUnavailableFlat
TerrainTrailRoad, Mixed, Trail
SceneryRiverside, Countryside, Historic, City, ParklandRiverside, Countryside, Historic, City, Parkland
AtmosphereScenic TourScenic Tour
TechnicalityUnavailableNon Technical
Total ascent98 m136 m
Climbing density2.3 m/km2.7 m/km
Total descent97 m135 m
Net elevation1 m1 m
Max absolute grade6.7%6.7%
Flat grade share97.6%96.7%
GAP factor0.1%0.1%
Cutoff7:30:008:30:00
Entry modelOpenOpen
Entry fee£60£65
Lowest modelled true cost£190£195
Cost model originNational AverageNational Average
Measured courseYesYes

Schedule

Bath & Bristol Railway Races Marathon

Exact race date not confirmed. Event weekend starts 2026-10-11 (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

Bath & Bristol Railway Races Marathon
Bath, South West
Bath & Bristol Railway Races Ultramarathon
Bath, South West

Actual distance

Bath & Bristol Railway Races Marathon
42.2 km
Bath & Bristol Railway Races Ultramarathon
50 km

raceindex.org mapped route held

Bath & Bristol Railway Races Marathon
Held
Bath & Bristol Railway Races Ultramarathon
Held

raceindex.org elevation profile held

Bath & Bristol Railway Races Marathon
Held
Bath & Bristol Railway Races Ultramarathon
Held

Course type

Bath & Bristol Railway Races Marathon
Out And Back
Bath & Bristol Railway Races Ultramarathon
Unavailable

Surface

Bath & Bristol Railway Races Marathon
Essentially 100% tarmac, aside from a small amount of grass at the start and finish
Bath & Bristol Railway Races Ultramarathon
Essentially 100% tarmac, aside from a small amount of grass at the start and finish

Elevation character

Bath & Bristol Railway Races Marathon
Unavailable
Bath & Bristol Railway Races Ultramarathon
Flat

Terrain

Bath & Bristol Railway Races Marathon
Trail
Bath & Bristol Railway Races Ultramarathon
Road, Mixed, Trail

Scenery

Bath & Bristol Railway Races Marathon
Riverside, Countryside, Historic, City, Parkland
Bath & Bristol Railway Races Ultramarathon
Riverside, Countryside, Historic, City, Parkland

Atmosphere

Bath & Bristol Railway Races Marathon
Scenic Tour
Bath & Bristol Railway Races Ultramarathon
Scenic Tour

Technicality

Bath & Bristol Railway Races Marathon
Unavailable
Bath & Bristol Railway Races Ultramarathon
Non Technical

Total ascent

Bath & Bristol Railway Races Marathon
98 m
Bath & Bristol Railway Races Ultramarathon
136 m

Climbing density

Bath & Bristol Railway Races Marathon
2.3 m/km
Bath & Bristol Railway Races Ultramarathon
2.7 m/km

Total descent

Bath & Bristol Railway Races Marathon
97 m
Bath & Bristol Railway Races Ultramarathon
135 m

Net elevation

Bath & Bristol Railway Races Marathon
1 m
Bath & Bristol Railway Races Ultramarathon
1 m

Max absolute grade

Bath & Bristol Railway Races Marathon
6.7%
Bath & Bristol Railway Races Ultramarathon
6.7%

Flat grade share

Bath & Bristol Railway Races Marathon
97.6%
Bath & Bristol Railway Races Ultramarathon
96.7%

GAP factor

Bath & Bristol Railway Races Marathon
0.1%
Bath & Bristol Railway Races Ultramarathon
0.1%

Cutoff

Bath & Bristol Railway Races Marathon
7:30:00
Bath & Bristol Railway Races Ultramarathon
8:30:00

Entry model

Bath & Bristol Railway Races Marathon
Open
Bath & Bristol Railway Races Ultramarathon
Open

Entry fee

Bath & Bristol Railway Races Marathon
£60
Bath & Bristol Railway Races Ultramarathon
£65

Lowest modelled true cost

Bath & Bristol Railway Races Marathon
£190
Bath & Bristol Railway Races Ultramarathon
£195

Cost model origin

Bath & Bristol Railway Races Marathon
National Average
Bath & Bristol Railway Races Ultramarathon
National Average

Measured course

Bath & Bristol Railway Races Marathon
Yes
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, Bath & Bristol Railway Races Marathon or Bath & Bristol Railway Races Ultramarathon?

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.

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How figures are calculated →