Great Britain's Olympic and world triathlon champion Alex Yee will race in the 2025 London Marathon.
Yee, 26, has won four Olympic triathlon medals - including individual gold and mixed relay bronze at Paris 2024.
The London-born athlete - who previously ran for Great Britain on the track and in cross country - will compete over marathon distance for the first time on Sunday, 27 April.
"Committing to the London Marathon for me was a no-brainer. It is an event that has given me so many memories," said the five-time Mini London Marathon finisher.
"Taking part in a full marathon has always been an itch I've wanted to scratch and there isn't any another place than London that I would want to start that journey."
Yee overhauled New Zealand's Hayden Wilde in the closing stages in Paris to win his first Olympic title in August, before winning the world title for the first time in October by finishing third in the final in Spain.