That reported 26:13 split is incorrect. It was actually 26:33, which is still crazy fast but more in line with the rest of the race.

> his 15km split was initially recorded as 39:47 before it was confirmed after the race as 40:07, improving his own world best.

(5km was 13:34)

https://worldathletics.org/competitions/world-athletics-labe...