Who said anything about me going to sea level?

The footrace starts at 4500 meters elevation. Your oxygen saturation will be
about 65% at that altitude. You will be weak. You will get sick. I run
uphill at that elevation - with a pack on. I climb mountains solo in the
winter at that elevation. You will crumble! Your tummy will hurt! You'll
turn blue! Smoke plenty of dope and drink lots of beer, cuz it shows you're
a man - especially at high altitudes!

haahahahahahaaaaaaaa!!!!!!