Largest number of finishers in a marathon
- Who
- TCS London Marathon 2025
- What
- 56,640 people
- Where
- United Kingdom (London)
- When
- 27 April 2025
The largest number of finishers in a marathon is 56,640 out of 57,449 starters in the TCS London Marathon in London, UK, on 27 April 2025.
This total broke the previous record by just under 1,000 people.
Over 840,000 individuals had applied for the ballot to enter the event.