Flat grade share
- Norfolk Festival of Running (King's Lynn) 5K
- 46.2% Favoured
St Albans Half Marathon 5K vs Norfolk Festival of Running (King's Lynn) 5K
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 5K or Norfolk Festival of Running (King's Lynn) 5K — which comes out ahead?
Norfolk Festival of Running (King's Lynn) 5K has the stronger available profile on flat grade share, course flatness and scenery score.
Route comparison snapshot
St Albans Half Marathon 5K
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 1.7%
- flat grade share
- 35.5%
- lower ascent
- 84 m
- climbing density
- 16.8 m/km
- net elevation
- -5 m
- maximum grade
- 8.9%
Norfolk Festival of Running (King's Lynn) 5K
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 1.5% Favoured
- flat grade share
- 46.2% Favoured
- lower ascent
- 69 m
- climbing density
- 13.8 m/km
- net elevation
- -1 m
- maximum grade
- 9.8%
| Metric | St Albans Half Marathon 5K | Norfolk Festival of Running (King's Lynn) 5K |
|---|---|---|
| Flat grade share | 35.5% | 46.2% ✓ |
| GAP factor (% slower than flat) | 1.7% | 1.5% ✓ |
| Uphill share | 33.1% | 26.8% |
| Steep-up share | 7.6% | 6.1% |
| Downhill share | 31.4% | 27.0% |
| Total ascent (m) | 84 m | 69 m |
| Climbing density (m/km) | 16.8 m/km | 13.8 m/km |
| Longest climb length (m) | 740 m | 130 m |
| Longest climb gain (m) | 29 m | 9 m |
| Longest climb average grade | 3.9% | 6.7% |
| Total descent (m) | 89 m | 70 m |
| Net elevation (m) | -5 m | -1 m |
| Max absolute grade | 8.9% | 9.8% |
| Start elevation (m) | 82 m | 18 m |
| Finish elevation (m) | 77 m | 18 m |
| Value | Unavailable | 85/100 |
| Scenic score | 60/100 | 65/100 ✓ |
| Conditions | 73/100 ✓ | 61/100 |
| Entry fee (GBP) | Unavailable | £29 |
| Lowest modelled true cost (GBP) | Unavailable | £159 |
GAP factor (% slower than flat)
- Norfolk Festival of Running (King's Lynn) 5K
- 1.5% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- St Albans Half Marathon 5K
- 16.8 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
- St Albans Half Marathon 5K
- Unavailable
Scenic score
- Norfolk Festival of Running (King's Lynn) 5K
- 65/100 Favoured
Conditions
- St Albans Half Marathon 5K
- 73/100 Favoured
Entry fee (GBP)
- St Albans Half Marathon 5K
- Unavailable
Lowest modelled true cost (GBP)
- St Albans Half Marathon 5K
- 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 5K | Norfolk Festival of Running (King's Lynn) 5K |
|---|---|---|
| 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 | 5 km | 5 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Loop | Laps |
| Surface | Unavailable | Trail course over sand, gravel and grass |
| Terrain | Trail | Trail |
| Scenery | Parkland, Lakeside, Historic, Countryside | Parkland, Countryside, Lakeside, Forest |
| Atmosphere | Community, Festival | Festival, Community |
| Total ascent | 84 m | 69 m |
| Climbing density | 16.8 m/km | 13.8 m/km |
| Total descent | 89 m | 70 m |
| Net elevation | -5 m | -1 m |
| Max absolute grade | 8.9% | 9.8% |
| Flat grade share | 35.5% | 46.2% |
| GAP factor | 1.7% | 1.5% |
| Field cap | 600 | Unavailable |
| Entry model | Open | Open |
| Entry fee | Unavailable | £29 |
| Lowest modelled true cost | Unavailable | £159 |
| Cost model origin | Unavailable | National Average |
Schedule
- St Albans Half Marathon 5K
Exact race date not confirmed. Event weekend starts 2027-06-13 (legacy event-level date).
- Norfolk Festival of Running (King's Lynn) 5K
Exact race date not confirmed. Event weekend starts 2026-07-12 (legacy event-level date).
Location
- St Albans Half Marathon 5K
- St Albans, East Of England
- Norfolk Festival of Running (King's Lynn) 5K
- King's Lynn, East Of England
Actual distance
- St Albans Half Marathon 5K
- 5 km
- Norfolk Festival of Running (King's Lynn) 5K
- 5 km
raceindex.org mapped route held
- St Albans Half Marathon 5K
- Held
- Norfolk Festival of Running (King's Lynn) 5K
- Held
raceindex.org elevation profile held
- St Albans Half Marathon 5K
- Held
- Norfolk Festival of Running (King's Lynn) 5K
- Held
Course type
- St Albans Half Marathon 5K
- Loop
- Norfolk Festival of Running (King's Lynn) 5K
- Laps
Surface
- St Albans Half Marathon 5K
- Unavailable
- Norfolk Festival of Running (King's Lynn) 5K
- Trail course over sand, gravel and grass
Terrain
- St Albans Half Marathon 5K
- Trail
- Norfolk Festival of Running (King's Lynn) 5K
- Trail
Scenery
- St Albans Half Marathon 5K
- Parkland, Lakeside, Historic, Countryside
- Norfolk Festival of Running (King's Lynn) 5K
- Parkland, Countryside, Lakeside, Forest
Atmosphere
- St Albans Half Marathon 5K
- Community, Festival
- Norfolk Festival of Running (King's Lynn) 5K
- Festival, Community
Total ascent
- St Albans Half Marathon 5K
- 84 m
- Norfolk Festival of Running (King's Lynn) 5K
- 69 m
Climbing density
- St Albans Half Marathon 5K
- 16.8 m/km
- Norfolk Festival of Running (King's Lynn) 5K
- 13.8 m/km
Total descent
- St Albans Half Marathon 5K
- 89 m
- Norfolk Festival of Running (King's Lynn) 5K
- 70 m
Net elevation
- St Albans Half Marathon 5K
- -5 m
- Norfolk Festival of Running (King's Lynn) 5K
- -1 m
Max absolute grade
- St Albans Half Marathon 5K
- 8.9%
- Norfolk Festival of Running (King's Lynn) 5K
- 9.8%
Flat grade share
- St Albans Half Marathon 5K
- 35.5%
- Norfolk Festival of Running (King's Lynn) 5K
- 46.2%
GAP factor
- St Albans Half Marathon 5K
- 1.7%
- Norfolk Festival of Running (King's Lynn) 5K
- 1.5%
Field cap
- St Albans Half Marathon 5K
- 600
- Norfolk Festival of Running (King's Lynn) 5K
- Unavailable
Entry model
- St Albans Half Marathon 5K
- Open
- Norfolk Festival of Running (King's Lynn) 5K
- Open
Entry fee
- St Albans Half Marathon 5K
- Unavailable
- Norfolk Festival of Running (King's Lynn) 5K
- £29
Lowest modelled true cost
- St Albans Half Marathon 5K
- Unavailable
- Norfolk Festival of Running (King's Lynn) 5K
- £159
Cost model origin
- St Albans Half Marathon 5K
- Unavailable
- Norfolk Festival of Running (King's Lynn) 5K
- 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 5K or Norfolk Festival of Running (King's Lynn) 5K?
Norfolk Festival of Running (King's Lynn) 5K has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.