Physics of baseball at Coors Field, Denver

[Darkmisc]

I've read that the thin air at Coors Field, Denver (among other factors) makes it a venue conducive to home runs.

As a percentage, how much faster does the ball travel due to the thinner air?

 

[russ_watters]

Faster? The ball starts off with almost exactly the same initial velocity - it just decelerates at a slower rate.