In a historic move set for 2027, the London Marathon will extend to a two-day event, allowing an unprecedented 100,000 runners to participate over the weekend of April 24–25. This unique expansion comes in response to overwhelming demand as more than 1.3 million individuals entered the public ballot, leading organizers to innovate in accommodating more participants. Despite the increased capacity, the likelihood of securing a spot remains below 10%, underscoring the immense popularity of the event.
The marathon’s expansion is expected to have significant charitable and economic impacts. Organizers anticipate it will raise over £150 million for charity, marking it as the most significant fundraising event in UK sporting history. Furthermore, the event is projected to contribute approximately £400 million in social and economic benefits, highlighting its importance beyond athletic achievement.
During the marathon weekend, a carefully structured schedule will be in place. The first day will feature the elite women’s race, elite female para-athletes, championship, and “Good for Age” women’s races, alongside a mass participation event involving nearly 50,000 runners. The elite men’s race will take center stage on the second day, accompanied by another large-scale mass participation event, ensuring a comprehensive and inclusive experience for all participants.
Participants are limited to competing on only one of the two days, with the results of the ballot expected to be announced in early July. This special two-day format is confirmed as a one-off celebration, after which the London Marathon is anticipated to revert to its traditional one-day schedule in subsequent years, maintaining its legacy while celebrating this remarkable occasion.