Big Half Marathon route map
Big Half Marathon: a 13.1 mi course through London. The map below shows the full route, including the start and finish.
- Date
- September 6, 2026
- Location
- London
- Distance
- 13.1 mi
- Elevation gain
- 180 ft
- Field size
- ~10,000
Course map

Elevation profile
The highest point on the course is 46 ft, the lowest -7 ft.
Make your own Big Half Marathon poster
BIG HALF MARATHON
September 2025
13.1 mi
Distance
180 ft
Elevation
The course above, printed for your wall — your colors, your finish time. Pick a size, framed or unframed.
Create your Big Half Marathon poster