Access All AreasThe 2025 TCS London Marathon has broken the record for the largest number of finishers in a marathon.
The marathon saw 56,640 finishers, beating the 55,646 set by the TCS New York City marathon in November.
The event, overseen by Hugh Brasher’s London Marathon Events team, also saw other records broken including Zoe Cowell-Jones running the fastest marathon by a mascot (female) in a time of 3:19:18.
The 2025 TCS London Marathon was already established as the world’s most popular marathon, having achieved the title for the most ballot entries for a marathon event thanks to 840,318 people having applied via the public ballot for the 2025 edition. It is also the world’s largest annual one-day fundraising event with more than £1.3 billion raised for charity since 1981.
The 27 April event involved the work of many of the industry’s leading suppliers including Arena Group which installed seating grandstands, fencing, barriers, mile marker towers and viewing platforms across the course.
Brasher said, “We are thrilled to have broken the Guinness World Records title for the largest number of finishers in a marathon at yesterday’s TCS London Marathon. It was a fantastic occasion to see 56,640 people cross the iconic Finish Line on The Mall throughout Marathon Day. We are delighted to have partnered with Guinness World Records once again to celebrate our 45th edition.”