A former downhill skier, who was initially assessed as untrained with a VO2 max of 74 ml/kg/min, achieved VO2 max values of 83, 85, 92, and eventually 96.7 ml/kg/min, which was higher than any previously recorded human value.

“former downhill skier um who had taken like a talent screen uh to see whether he'd be suitable for something like cycling and he's i think he'd scored just untrained just off off the downhill slopes he was 74 or something like that 74 milliliters per kilogram per minute and uh and so that he passed and and so he they started training as a cyclist as a teenager and then you know pretty quickly scored 83 then 85 then 92 and uh that then he ended up scoring the initial reports was he were that he scored 97.5 but i think when the science scientific journal came out they said it was 96.7 um which either way was still higher than had ever been recorded in human history”