Originally Posted by dougdirt
Among other things. The thin air lets the ball travel a little further than it otherwise would. It leads to a few extra hits finding the grass both inside and outside of the park.
Whatever impact that may have would also be countered by the fact that the centerfielder has fifty less feet to cover behind him. I'd say it's pretty much a wash as far as balls in play go, especially with a sample size like Sulbaran's.