The London Marathon, long celebrated as one of the crown jewels of global road racing, has once again cemented its status as the world’s most sought-after marathon. A record-breaking 1,133,813 people applied through the public ballot to run the 2026 TCS London Marathon, a staggering 36% increase from the previous record of 840,318 for the 2025 race.
This milestone not only reaffirms London’s unique appeal among runners worldwide, but also signals something bigger: the UK—and arguably the world—is in the midst of a full-blown running boom.
The Numbers Behind the New World Record
According to London Marathon Events (LME), which organizes the race, the 2026 ballot total includes:
- 869,803 applications from the UK
- 433,775 from men (49.87%)
- 430,983 from women (49.55%)
- 5,044 from non-binary applicants (0.58%)
- 264,011 applications from international runners
This total smashes the previous Guinness World Record for the largest ballot for a marathon and far exceeds the 578,304 applications for the 2024 edition.
Hugh Brasher, Event Director at LME, called the response “absolutely staggering,” adding:
“This reaffirms London as by far the most popular marathon on the planet… Our ambition is to inspire activity in people of all ages and abilities, and these astonishing numbers show how many people want to be part of it.”
Why Is Everyone Running?
The UK, in particular, seems to have caught marathon fever. Last April, the country witnessed the largest day of marathon running ever on its soil, with over 90,000 runners taking part in both the London and Manchester marathons on the same day.
Multiple factors are fueling the surge in interest in the UK:
- Rise of Social Running Communities: Grassroots running groups like These Girls Run and city events like Friday Night Lights are reshaping the running landscape, especially among younger and more diverse demographics.
- Shift in Lifestyle Culture: Millennials and Gen Z are increasingly trading bar crawls for 5Ks. As Friday Night Lights founder Charlie A put it: “The growth has been rapid and proof that people are crying out for something social that doesn’t wreck their weekend with crippling hangovers.”
- Women Leading the Charge: Nearly half of all UK applicants for the 2026 ballot were women—a monumental shift from the 1981 inaugural London Marathon, where women made up just 4% of participants.
- Parkrun Culture: With over 2,500 weekly events and 450,000 participants worldwide, Parkrun has helped normalize running as a fun, low-pressure social activity. Its motto: walk, jog, or run—everyone is welcome.
From Niche Sport to Mass Movement
In the UK, 6.5 million adults now run regularly, according to Sport England, a 350,000 increase year-over-year. Though still below the pre-pandemic peak of 7 million, this rise in consistent participation suggests that running is becoming more deeply embedded in daily life.
Back in 1981, only 7,747 runners crossed the finish line at the first London Marathon. Fast forward to 2025, and the event hosted 56,640 finishers, setting the world record for most marathon finishers in a single race. This transformation is nothing short of extraordinary.
The dream of completing a marathon, particularly one of the six World Marathon Majors, is also gaining steam. In 2015, just 97 Brits had earned the coveted Six Star Medal for finishing all six (Tokyo, Boston, London, Berlin, Chicago, New York). As of 2025, 2,023 Brits can now claim the honor.
