Doing somewhat serious sports in high school, I always grumbled about competing vs the national team people in their home turf (6k feet in Colorado Springs). T

Doing somewhat serious sports in high school, I always grumbled about competing vs the national team people in their home turf (6k feet in Colorado Springs). They'd destroy you at sea level as it was, and sucking wind at altitude once you got overworked, it was just another level of unfair. I can't imagine going in at over 13k feet. Wtf. That's higher than the day hiking on Rainier here, and you get some serious headaches if you go at usual pace without acclimating.