Meet Mike Peace, one of only 12 runners to have run every London Marathon since it started in 1981.
"It's one of those strange clubs you can only leave. There's no way anyone can ever join," he says.
His advice for the day?
"Always look forward to the last 50 yards. Then you absolutely know you're going to cross the line!"
And make that 36! Mike finished his 36th London Marathon on Sunday in 3:52.29 - congratulations.
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