The Big half 2026

London, United Kingdom, 6 Sep 2026

One distance, 21 km, up to 86 m of climb.

Distances

21 km: 21 km, 86 m of climb, highest point 13 m, 6 Sep 2026.
21 km cut-off times
- Finish, 21.2 km: 14:15
21 km aid stations
- Mile 3, 4.8 km
- Mile 6, 9.7 km
- Mile 9, 14.5 km
- Mile 11, 17.7 km
21 km equipment
- Bottle belt, hydration vest, or handheld bottle (recommended)
- Provided event kitbag for baggage drop (recommended)
- Warm, dry change of clothes for after the finish (recommended)