Flat grade share
- Belfast City Marathon
- 88.2% Favoured
Tollymore Extreme (Tollymore Trail Marathon), Newcastle vs Belfast City Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofTollymore Extreme (Tollymore Trail Marathon), Newcastle or Belfast City Marathon — which comes out ahead?
Belfast City Marathon has the stronger available profile on flat grade share, course flatness and conditions.
Route comparison snapshot
Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 5.4%
- flat grade share
- 21.6%
- lower ascent
- 1,084 m
- climbing density
- 25.7 m/km
- net elevation
- -7 m
- maximum grade
- 28.1%
Belfast City Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- -0.1% Favoured
- flat grade share
- 88.2% Favoured
- lower ascent
- 177 m
- climbing density
- 4.2 m/km
- net elevation
- -22 m
- maximum grade
- 5.4%
| Metric | Tollymore Extreme (Tollymore Trail Marathon), Newcastle | Belfast City Marathon |
|---|---|---|
| Flat grade share | 21.6% | 88.2% ✓ |
| GAP factor (% slower than flat) | 5.4% | -0.1% ✓ |
| Uphill share | 40.7% | 5.9% |
| Steep-up share | 18.9% | 0.0% |
| Downhill share | 37.7% | 5.9% |
| Total ascent (m) | 1,084 m | 177 m |
| Climbing density (m/km) | 25.7 m/km | 4.2 m/km |
| Longest climb length (m) | 1,560 m | 2,010 m |
| Longest climb gain (m) | 104 m | 44 m |
| Longest climb average grade | 6.7% | 2.2% |
| Total descent (m) | 1,092 m | 198 m |
| Net elevation (m) | -7 m | -22 m |
| Max absolute grade | 28.1% | 5.4% |
| Start elevation (m) | 88 m | 24 m |
| Finish elevation (m) | 80 m | 2 m |
| Value | Unavailable | 76/100 |
| Scenic score | 100/100 ✓ | 61/100 |
| Conditions | 47/100 | 86/100 ✓ |
| Entry fee (GBP) | Unavailable | £75 |
| Lowest modelled true cost (GBP) | Unavailable | £205 |
GAP factor (% slower than flat)
- Belfast City Marathon
- -0.1% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- Belfast City Marathon
- 4.2 m/km
Longest climb length (m)
- Belfast City Marathon
- 2,010 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
- Belfast City Marathon
- 76/100
Scenic score
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- 100/100 Favoured
- Belfast City Marathon
- 61/100
Conditions
- Belfast City Marathon
- 86/100 Favoured
Entry fee (GBP)
Lowest modelled true cost (GBP)
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 | Tollymore Extreme (Tollymore Trail Marathon), Newcastle | Belfast City Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-11-14 (legacy event-level date). | Exact race date awaiting a fresh source check. |
| Location | Newcastle, Northern Ireland | Belfast, Northern Ireland |
| Actual distance | 42.2 km | 42.2 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Laps | Point To Point |
| Surface | Mostly forest gravel road/service tracks (often rutted from rain, with leaf litter, fallen branches and mud) plus one short, slippery single Track section. | Unavailable |
| Elevation character | Hilly | Rolling |
| Terrain | Road | Road |
| Scenery | Countryside, Mountain, Forest, Historic, Parkland, Coastal, Riverside | Waterfront, City, Riverside, Parkland |
| Atmosphere | Unavailable | Big City, Community |
| Technicality | Moderate | Non Technical |
| Total ascent | 1,084 m | 177 m |
| Climbing density | 25.7 m/km | 4.2 m/km |
| Total descent | 1,092 m | 198 m |
| Net elevation | -7 m | -22 m |
| Max absolute grade | 28.1% | 5.4% |
| Flat grade share | 21.6% | 88.2% |
| GAP factor | 5.4% | -0.1% |
| Cutoff | Unavailable | 6:00:00 |
| Entry model | Open | Open |
| Entry fee | Unavailable | £75 |
| Lowest modelled true cost | Unavailable | £205 |
| Cost model origin | Unavailable | National Average |
Schedule
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
Exact race date not confirmed. Event weekend starts 2026-11-14 (legacy event-level date).
- Belfast City Marathon
Exact race date awaiting a fresh source check.
Location
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- Newcastle, Northern Ireland
- Belfast City Marathon
- Belfast, Northern Ireland
Actual distance
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- 42.2 km
- Belfast City Marathon
- 42.2 km
raceindex.org mapped route held
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- Held
- Belfast City Marathon
- Held
raceindex.org elevation profile held
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- Held
- Belfast City Marathon
- Held
Course type
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- Laps
- Belfast City Marathon
- Point To Point
Surface
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- Mostly forest gravel road/service tracks (often rutted from rain, with leaf litter, fallen branches and mud) plus one short, slippery single Track section.
- Belfast City Marathon
- Unavailable
Elevation character
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- Hilly
- Belfast City Marathon
- Rolling
Terrain
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- Road
- Belfast City Marathon
- Road
Scenery
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- Countryside, Mountain, Forest, Historic, Parkland, Coastal, Riverside
- Belfast City Marathon
- Waterfront, City, Riverside, Parkland
Atmosphere
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- Unavailable
- Belfast City Marathon
- Big City, Community
Technicality
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- Moderate
- Belfast City Marathon
- Non Technical
Total ascent
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- 1,084 m
- Belfast City Marathon
- 177 m
Climbing density
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- 25.7 m/km
- Belfast City Marathon
- 4.2 m/km
Total descent
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- 1,092 m
- Belfast City Marathon
- 198 m
Net elevation
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- -7 m
- Belfast City Marathon
- -22 m
Max absolute grade
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- 28.1%
- Belfast City Marathon
- 5.4%
Flat grade share
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- 21.6%
- Belfast City Marathon
- 88.2%
GAP factor
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- 5.4%
- Belfast City Marathon
- -0.1%
Cutoff
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- Unavailable
- Belfast City Marathon
- 6:00:00
Entry model
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- Open
- Belfast City Marathon
- Open
Entry fee
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- Unavailable
- Belfast City Marathon
- £75
Lowest modelled true cost
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- Unavailable
- Belfast City Marathon
- £205
Cost model origin
- Tollymore Extreme (Tollymore Trail Marathon), Newcastle
- Unavailable
- Belfast City Marathon
- National Average
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, Tollymore Extreme (Tollymore Trail Marathon), Newcastle or Belfast City Marathon?
Belfast City Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.