The Marathon That Doesn't Count

On 12 October 2019, in a park in Vienna, Eliud Kipchoge ran 42.195 kilometres in 1:59:40 — the first human being to break two hours for the marathon distance.

It is not a world record. Officially, it never happened.

The reason is the rules, and the rules are the interesting part. Kipchoge's run was a private, purpose-built event — the INEOS 1:59 Challenge — designed to give him the most favourable possible conditions rather than to satisfy a governing body. Under the rules that make a record valid, almost everything about it was illegal:

• Rotating pacemakers — 41 of them, in a V formation, dropping in and out. In a sanctioned race you cannot have fresh pacers joining you mid-run.
• A pace car projecting a laser line on the road ahead, effectively setting the tempo.
• Drinks handed to him by cyclists, rather than taken from fixed stations.
• A prototype shoe — a version of Nike's Alphafly, with a carbon plate and air pods, which was not then available to other athletes.

Take those away, and you're not measuring a man's limit. You're measuring a man plus a laboratory.

Kipchoge's official world record, set in Berlin in 2018, was 2:01:39 — a genuinely legal, extraordinarily fast marathon. It stood until Kelvin Kiptum ran 2:00:35 in Chicago in 2023, a record later ratified. Kiptum died in a car crash in February 2024, aged 24.

Kipchoge's own framing was that the 1:59 was not a stunt but a demonstration — proof that the barrier was psychological. That may be true. It is also a useful lesson in reading sport: the number was real, and the conditions were not, and both of those things can be true at once.