Flat grade share
- Belfast City Marathon 10K
- Unavailable
Belfast City Marathon Half Marathon vs Belfast City Marathon 10K
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofBelfast City Marathon Half Marathon or Belfast City Marathon 10K — which comes out ahead?
Belfast City Marathon 10K has the stronger available profile on value score, entry fee and modelled total cost.
Route comparison snapshot
Belfast City Marathon Half Marathon
- Mapped route
- Held Favoured
- Elevation profile
- Held Favoured
- course flatness
- 0.2%
- flat grade share
- 90.1%
- lower ascent
- 75 m
- climbing density
- 3.6 m/km
- net elevation
- 0 m
- maximum grade
- 5.9%
Belfast City Marathon 10K
- 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
| Metric | Belfast City Marathon Half Marathon | Belfast City Marathon 10K |
|---|---|---|
| Flat grade share | 90.1% | Unavailable |
| GAP factor (% slower than flat) | 0.2% | Unavailable |
| Uphill share | 4.6% | Unavailable |
| Steep-up share | 0.0% | Unavailable |
| Downhill share | 5.2% | Unavailable |
| Total ascent (m) | 75 m | Unavailable |
| Climbing density (m/km) | 3.6 m/km | Unavailable |
| Longest climb length (m) | 1,020 m | Unavailable |
| Longest climb gain (m) | 14 m | Unavailable |
| Longest climb average grade | 1.4% | Unavailable |
| Total descent (m) | 75 m | Unavailable |
| Net elevation (m) | 0 m | Unavailable |
| Max absolute grade | 5.9% | Unavailable |
| Start elevation (m) | 2 m | Unavailable |
| Finish elevation (m) | 2 m | Unavailable |
| Value | 82/100 | 86/100 ✓ |
| Scenic score | 43/100 | 43/100 |
| Conditions | 86/100 | 86/100 |
| Entry fee (GBP) | £42 | £25 ✓ |
| Lowest modelled true cost (GBP) | £172 | £155 ✓ |
GAP factor (% slower than flat)
- Belfast City Marathon 10K
- Unavailable
Uphill share
- Belfast City Marathon 10K
- Unavailable
Steep-up share
- Belfast City Marathon 10K
- Unavailable
Downhill share
- Belfast City Marathon 10K
- Unavailable
Total ascent (m)
- Belfast City Marathon 10K
- Unavailable
Climbing density (m/km)
- Belfast City Marathon 10K
- Unavailable
Longest climb length (m)
- Belfast City Marathon 10K
- Unavailable
Longest climb gain (m)
- Belfast City Marathon 10K
- Unavailable
Longest climb average grade
- Belfast City Marathon 10K
- Unavailable
Total descent (m)
- Belfast City Marathon 10K
- Unavailable
Net elevation (m)
- Belfast City Marathon 10K
- Unavailable
Max absolute grade
- Belfast City Marathon 10K
- Unavailable
Start elevation (m)
- Belfast City Marathon 10K
- Unavailable
Finish elevation (m)
- Belfast City Marathon 10K
- Unavailable
Value
- Belfast City Marathon 10K
- 86/100 Favoured
Scenic score
Conditions
Entry fee (GBP)
- Belfast City Marathon 10K
- £25 Favoured
Lowest modelled true cost (GBP)
- Belfast City Marathon 10K
- £155 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.
Same-distance comparisons are most meaningful; cross-distance metrics are contextual.
Race facts that change the decision
| Fact | Belfast City Marathon Half Marathon | Belfast City Marathon 10K |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2027-05-02 (legacy event-level date). | Exact race date awaiting a fresh source check. |
| Location | Belfast, Northern Ireland | Belfast, Northern Ireland |
| Actual distance | 21.1 km | 10 km |
| raceindex.org mapped route held | Held | Not held |
| raceindex.org elevation profile held | Held | Not held |
| Scenery | City, Riverside, Parkland, Waterfront | City, Riverside, Parkland, Waterfront |
| Atmosphere | Big City, Community | Big City, Community |
| Total ascent | 75 m | Unavailable |
| Climbing density | 3.6 m/km | Unavailable |
| Total descent | 75 m | Unavailable |
| Net elevation | 0 m | Unavailable |
| Max absolute grade | 5.9% | Unavailable |
| Flat grade share | 90.1% | Unavailable |
| GAP factor | 0.2% | Unavailable |
| Cutoff | 3:00:00 | 2:00:00 |
| Entry model | Open | Open |
| Entry fee | £42 | £25 |
| Lowest modelled true cost | £172 | £155 |
| Cost model origin | National Average | National Average |
Schedule
- Belfast City Marathon Half Marathon
Exact race date not confirmed. Event weekend starts 2027-05-02 (legacy event-level date).
- Belfast City Marathon 10K
Exact race date awaiting a fresh source check.
Location
- Belfast City Marathon Half Marathon
- Belfast, Northern Ireland
- Belfast City Marathon 10K
- Belfast, Northern Ireland
Actual distance
- Belfast City Marathon Half Marathon
- 21.1 km
- Belfast City Marathon 10K
- 10 km
raceindex.org mapped route held
- Belfast City Marathon Half Marathon
- Held
- Belfast City Marathon 10K
- Not held
raceindex.org elevation profile held
- Belfast City Marathon Half Marathon
- Held
- Belfast City Marathon 10K
- Not held
Scenery
- Belfast City Marathon Half Marathon
- City, Riverside, Parkland, Waterfront
- Belfast City Marathon 10K
- City, Riverside, Parkland, Waterfront
Atmosphere
- Belfast City Marathon Half Marathon
- Big City, Community
- Belfast City Marathon 10K
- Big City, Community
Total ascent
- Belfast City Marathon Half Marathon
- 75 m
- Belfast City Marathon 10K
- Unavailable
Climbing density
- Belfast City Marathon Half Marathon
- 3.6 m/km
- Belfast City Marathon 10K
- Unavailable
Total descent
- Belfast City Marathon Half Marathon
- 75 m
- Belfast City Marathon 10K
- Unavailable
Net elevation
- Belfast City Marathon Half Marathon
- 0 m
- Belfast City Marathon 10K
- Unavailable
Max absolute grade
- Belfast City Marathon Half Marathon
- 5.9%
- Belfast City Marathon 10K
- Unavailable
Flat grade share
- Belfast City Marathon Half Marathon
- 90.1%
- Belfast City Marathon 10K
- Unavailable
GAP factor
- Belfast City Marathon Half Marathon
- 0.2%
- Belfast City Marathon 10K
- Unavailable
Cutoff
- Belfast City Marathon Half Marathon
- 3:00:00
- Belfast City Marathon 10K
- 2:00:00
Entry model
- Belfast City Marathon Half Marathon
- Open
- Belfast City Marathon 10K
- Open
Entry fee
- Belfast City Marathon Half Marathon
- £42
- Belfast City Marathon 10K
- £25
Lowest modelled true cost
- Belfast City Marathon Half Marathon
- £172
- Belfast City Marathon 10K
- £155
Cost model origin
- Belfast City Marathon Half Marathon
- National Average
- Belfast City Marathon 10K
- 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.