Flat grade share
- St Albans Half Marathon
- 55.0% Favoured
St Albans Half Marathon vs Norfolk Festival of Running (King's Lynn) Half Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofSt Albans Half Marathon or Norfolk Festival of Running (King's Lynn) Half Marathon — which comes out ahead?
St Albans Half Marathon has the stronger available profile on flat grade share, course flatness and scenery score.
Route comparison snapshot
St Albans Half Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 1.0% Favoured
- flat grade share
- 55.0% Favoured
- lower ascent
- 220 m
- climbing density
- 10.4 m/km
- net elevation
- 0 m
- maximum grade
- 8.8%
Norfolk Festival of Running (King's Lynn) Half Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 1.5%
- flat grade share
- 45.5%
- lower ascent
- 278 m
- climbing density
- 13.2 m/km
- net elevation
- -1 m
- maximum grade
- 9.8%
| Metric | St Albans Half Marathon | Norfolk Festival of Running (King's Lynn) Half Marathon |
|---|---|---|
| Flat grade share | 55.0% ✓ | 45.5% |
| GAP factor (% slower than flat) | 1.0% ✓ | 1.5% |
| Uphill share | 21.7% | 27.2% |
| Steep-up share | 1.1% | 5.9% |
| Downhill share | 23.3% | 27.3% |
| Total ascent (m) | 220 m | 278 m |
| Climbing density (m/km) | 10.4 m/km | 13.2 m/km |
| Longest climb length (m) | 1,560 m | 140 m |
| Longest climb gain (m) | 39 m | 9 m |
| Longest climb average grade | 2.5% | 6.3% |
| Total descent (m) | 221 m | 279 m |
| Net elevation (m) | 0 m | -1 m |
| Max absolute grade | 8.8% | 9.8% |
| Start elevation (m) | 81 m | 18 m |
| Finish elevation (m) | 81 m | 17 m |
| Value | Unavailable | 83/100 |
| Scenic score | 66/100 ✓ | 65/100 |
| Conditions | 73/100 ✓ | 61/100 |
| Entry fee (GBP) | Unavailable | £36 |
| Lowest modelled true cost (GBP) | Unavailable | £166 |
GAP factor (% slower than flat)
- St Albans Half Marathon
- 1.0% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- St Albans Half Marathon
- 10.4 m/km
Longest climb length (m)
- St Albans Half Marathon
- 1,560 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
- St Albans Half Marathon
- Unavailable
Scenic score
- St Albans Half Marathon
- 66/100 Favoured
Conditions
- St Albans Half Marathon
- 73/100 Favoured
Entry fee (GBP)
- St Albans Half Marathon
- Unavailable
Lowest modelled true cost (GBP)
- St Albans Half 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 | St Albans Half Marathon | Norfolk Festival of Running (King's Lynn) Half Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2027-06-13 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-07-12 (legacy event-level date). |
| Location | St Albans, East Of England | King's Lynn, East Of England |
| Actual distance | 21.1 km | 21.1 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Point To Point | Laps |
| Surface | Unavailable | Trail course over sand, gravel and grass |
| Elevation character | Rolling | Unavailable |
| Terrain | Road, Trail | Trail |
| Scenery | Countryside, Parkland, Lakeside, Historic | Parkland, Countryside, Lakeside, Forest |
| Atmosphere | Community, Festival | Festival, Community |
| Technicality | Non Technical | Unavailable |
| Total ascent | 220 m | 278 m |
| Climbing density | 10.4 m/km | 13.2 m/km |
| Total descent | 221 m | 279 m |
| Net elevation | 0 m | -1 m |
| Max absolute grade | 8.8% | 9.8% |
| Flat grade share | 55.0% | 45.5% |
| GAP factor | 1.0% | 1.5% |
| Cutoff | 3:15:00 | 6:00:00 |
| Field cap | 3,600 | Unavailable |
| Entry model | Open | Open |
| Entry fee | Unavailable | £36 |
| Lowest modelled true cost | Unavailable | £166 |
| Cost model origin | Unavailable | National Average |
Schedule
- St Albans Half Marathon
Exact race date not confirmed. Event weekend starts 2027-06-13 (legacy event-level date).
- Norfolk Festival of Running (King's Lynn) Half Marathon
Exact race date not confirmed. Event weekend starts 2026-07-12 (legacy event-level date).
Location
- St Albans Half Marathon
- St Albans, East Of England
- Norfolk Festival of Running (King's Lynn) Half Marathon
- King's Lynn, East Of England
Actual distance
- St Albans Half Marathon
- 21.1 km
- Norfolk Festival of Running (King's Lynn) Half Marathon
- 21.1 km
raceindex.org mapped route held
- St Albans Half Marathon
- Held
- Norfolk Festival of Running (King's Lynn) Half Marathon
- Held
raceindex.org elevation profile held
- St Albans Half Marathon
- Held
- Norfolk Festival of Running (King's Lynn) Half Marathon
- Held
Course type
- St Albans Half Marathon
- Point To Point
- Norfolk Festival of Running (King's Lynn) Half Marathon
- Laps
Surface
- St Albans Half Marathon
- Unavailable
- Norfolk Festival of Running (King's Lynn) Half Marathon
- Trail course over sand, gravel and grass
Elevation character
- St Albans Half Marathon
- Rolling
- Norfolk Festival of Running (King's Lynn) Half Marathon
- Unavailable
Terrain
- St Albans Half Marathon
- Road, Trail
- Norfolk Festival of Running (King's Lynn) Half Marathon
- Trail
Scenery
- St Albans Half Marathon
- Countryside, Parkland, Lakeside, Historic
- Norfolk Festival of Running (King's Lynn) Half Marathon
- Parkland, Countryside, Lakeside, Forest
Atmosphere
- St Albans Half Marathon
- Community, Festival
- Norfolk Festival of Running (King's Lynn) Half Marathon
- Festival, Community
Technicality
- St Albans Half Marathon
- Non Technical
- Norfolk Festival of Running (King's Lynn) Half Marathon
- Unavailable
Total ascent
- St Albans Half Marathon
- 220 m
- Norfolk Festival of Running (King's Lynn) Half Marathon
- 278 m
Climbing density
- St Albans Half Marathon
- 10.4 m/km
- Norfolk Festival of Running (King's Lynn) Half Marathon
- 13.2 m/km
Total descent
- St Albans Half Marathon
- 221 m
- Norfolk Festival of Running (King's Lynn) Half Marathon
- 279 m
Net elevation
- St Albans Half Marathon
- 0 m
- Norfolk Festival of Running (King's Lynn) Half Marathon
- -1 m
Max absolute grade
- St Albans Half Marathon
- 8.8%
- Norfolk Festival of Running (King's Lynn) Half Marathon
- 9.8%
Flat grade share
- St Albans Half Marathon
- 55.0%
- Norfolk Festival of Running (King's Lynn) Half Marathon
- 45.5%
GAP factor
- St Albans Half Marathon
- 1.0%
- Norfolk Festival of Running (King's Lynn) Half Marathon
- 1.5%
Cutoff
- St Albans Half Marathon
- 3:15:00
- Norfolk Festival of Running (King's Lynn) Half Marathon
- 6:00:00
Field cap
- St Albans Half Marathon
- 3,600
- Norfolk Festival of Running (King's Lynn) Half Marathon
- Unavailable
Entry model
- St Albans Half Marathon
- Open
- Norfolk Festival of Running (King's Lynn) Half Marathon
- Open
Entry fee
- St Albans Half Marathon
- Unavailable
- Norfolk Festival of Running (King's Lynn) Half Marathon
- £36
Lowest modelled true cost
- St Albans Half Marathon
- Unavailable
- Norfolk Festival of Running (King's Lynn) Half Marathon
- £166
Cost model origin
- St Albans Half Marathon
- Unavailable
- Norfolk Festival of Running (King's Lynn) Half 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, St Albans Half Marathon or Norfolk Festival of Running (King's Lynn) Half Marathon?
St Albans Half Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.