Most ballot entries for a marathon event
- Who
- TCS London Marathon
- What
- 1,133,813 total number
- Where
- United Kingdom
- When
- May 2025
The most ballot entries for a marathon event is 1,133,813, for the 2026 TCS London Marathon, as of May 2025.
The London Marathon broke its own record from the year before. This is the first time the ballot has passed the one million mark.