Here’s a quirky truth: The average time includes port-a-potty stops. Over 50,000 runners means long lines. People have been known to lose 5 to 10 minutes just waiting. You can’t train for that. It’s a marathon of patience before you even run.
Also, the weather plays tricks. One year it was a heatwave. Another year it poured rain. The average time jumps up when everyone is slipping on wet leaves. London is not a treadmill.
London Marathon 2026: A Data Round up — Geeks on Feet
What About the Costumes?
You can’t talk averages without talking costumes. Running in a full rhino suit adds 45 minutes to your time. Running as a giant phone box? Add an hour. The average time is pulled up by people who look ridiculous but are having the best day ever.
One year, a guy ran as a pint of beer. He finished in 6 hours flat. He was a legend. His time is part of the average now. You’re welcome, statistics.
