A high hematocrit indicates a large oxygen-carrying capacity beneficial for performance.

“my hematocrit is actually pretty darn High something that has to do with my iron levels probably and just the fact that I'm an athlete in the ocean all the time I've often wondered recently with my hematocrit kind of bumping up if being in the ocean and surfing and very often having to hold my breath under waves is increasing the hematocrit but my hematocrit is still within normal though I definitely have a large oxygen carrying capacity which I benefit from when I'm surfing and working out with a uh robust hematocrit”