London Marathon Organisers Explore Two-Day 2027 Race to Boost Participation

London Marathon organisers are considering a significant structural change by potentially staging the iconic race across two days starting in 2027.

“London Marathon organisers are considering staging next year's event across two days”

BBC

This move would dramatically increase participation capacity and represent an unprecedented format among the World Marathon Majors.

BBC

The proposal, dubbed the 'Double London Marathon,' aims to address overwhelming demand by allowing approximately 100,000 amateur runners to take part across Saturday and Sunday.

Elite men's and women's races would be scheduled on separate days under the plan.

This ambitious plan, while not yet formally approved, has reached advanced stages of discussion with key stakeholders including City Hall.

Mayor of London Sadiq Khan's office has expressed consideration of the possibility.

The format change would make the London Marathon the first of the six World Marathon Majors to adopt a multi-day structure.

The unprecedented demand for participation in the London Marathon has reached staggering levels.

The 2026 race drew 1.1 million applicants through the public ballot—a remarkable 36% increase from the previous year.

Canadian Running Magazine

This represents a dramatic rise from the 410,000 applications just three years prior.

This overwhelming demand has created a situation where only about 5% of applicants actually get the chance to complete the course.

This calculation is based on the total number of starters (57,449) in the previous year.

The race has grown exponentially in popularity, evidenced by the record-breaking 56,540 runners who finished the 2025 event.

The most recent 2026 edition saw a slight increase to 56,640 finishers.

This surge in interest has necessitated innovative solutions to accommodate the growing community of runners.

The potential two-day format could deliver substantial economic and charitable benefits.

“London Marathon: A New Era of Participation The London Marathon may become a two-day event from 2027 to accommodate more runners”

Devdiscourse

Projections suggest the expanded event could boost London's economy by more than £130 million (nearly $240 million CAD).

The event could also significantly increase fundraising potential.

The current one-day format already makes the London Marathon the world's largest annual fundraising event.

It has raised £87.3 million ($160 million CAD) for charity in 2025 alone.

By accommodating around 100,000 runners across two days instead of the current capacity, the event could dramatically increase both participation and fundraising capacity.

This economic impact would extend beyond just the race itself, benefiting local businesses and tourism.

The extended event period could position the London Marathon as an even more significant contributor to both charitable causes and the local economy.

The proposal for a two-day London Marathon is still in the discussion phase with formal approval pending.

Talks with stakeholders have reached an advanced stage according to organisers.

El-Balad

London Marathon Events has confirmed that while no final decisions have been made, they are actively exploring the feasibility of the two-day format for 2027.

The organisation has emphasised that their immediate focus remains on delivering the upcoming 2026 London Marathon scheduled for Sunday, 26 April.

They are ensuring every participant has an amazing experience in the current format.

Mayor of London Sadiq Khan's office has expressed openness to the proposal.

A spokesperson stated that 'London is the sporting capital of the world and the Mayor looks forward to working with London Marathon and partners to consider if it might be possible to host an event that will run across two days next year.'

This collaborative approach suggests careful planning and stakeholder consensus are still required before final implementation.

The proposed two-day format would represent a revolutionary change in marathon organisation.

“London Marathon organisers are exploring the possibility of staging the event across two days in 2027 to allow more people to take part”

Ilkley Gazette

It would separate the elite races from the mass participation field.

Ilkley Gazette

This would create what could be described as a 'festival of running' atmosphere across an entire weekend.

Under the current plan, the elite men's and women's races would be staged on separate days.

This is different from the traditional format where both elite races typically occur on the same day.

This separation would potentially improve the experience for elite athletes by reducing congestion.

The expanded format would maintain the marathon's status as a world-class sporting event.

It would dramatically increase accessibility for amateur runners who previously faced extremely low odds.

This innovative approach could set a new benchmark for major international marathons worldwide.