London Marathon 2025 Registration Process. How to sign up for the london marathon 2025 with the ballot process, how it works and how much it costs to enter. How to enter the 2025 london marathon to secure your spot in next year’s race, make sure you’re ready to enter the ballot, which opens on saturday april 20, one day before the 2024 edition of.

How to sign up for the london marathon 2025 with the ballot process, how it works and how much it costs to enter. It is only for supporters who have their own place (ballot.