Hitting the Wall: London Marathon 2015–2025

Median pace slowdown vs opening 5km, 2015–2025

Pace vs opening 5km: On pace Slowing The wall

Finish · 42.3km

+16.2%

slower than opening 5km pace

Source: London Marathon split data, finishers with complete 5km splits, 2015–2025. Course: London Marathon Events.