Since the early 2010s, the London Marathon has capped its field at around 50,000 accepted entrants. Yes, accepted—because not everyone shows up. Life happens. Alarm clocks fail. Hamstrings cry in the night. On the day, you’re looking at roughly 40,000 to 43,000 souls crossing that finish line on The Mall.
In 2026, for example, there were 48,627 starters and 43,965 finishers. That’s about 4,600 runners who started but didn’t finish—maybe they got injured, hit “the wall,” or decided that a pub seat was more appealing. (Honestly, I don’t blame them. The wall is real, folks.)
So when someone says “40,000 people ran,” they mean 40,000 people finished. But the actual crowd on the course is bigger, messier, and far more interesting. You’re already ahead of the curve just for asking.
The Hidden Swarm: Ballot, Charities, and Golden Tickets
Now, here’s where it gets juicy. Those 40,000 finishers don’t just materialize from a magic ballot box. They come from three main pools, and each one has its own weird stories. First, the ballot: about one in twenty applicants gets a spot—roughly 17,000 people. The odds are worse than getting a table at a trendy restaurant on a Saturday night.
Then there are the charity runners, who raise thousands of pounds. London Marathons are basically a giant fundraising machine—nearly £70 million was raised in 2026 alone. And finally, the “Good for Age” and championship entries for speedy runners who can knock out a 3-hour marathon while the rest of us are still lacing up our shoes.
London Marathon 2026: How to track runners and check live results and
Oh, and let’s not forget the elites. The Kenenisa Bekeles of the world. They’re maybe 100 people, but they move so fast they feel like a separate species. (You know who you are—you’re the one still reading this while sipping coffee, not running a sub-two-hour pace. Same, buddy. Same.)
