Universal Eyes: I was thinking of someting simular. Number of rounds that you last divided by the number of rounds the Pond goes on for. This would make the largest ponds equal to the smaller ones as far as a person's staying power is concerned. That, plus doing what fencer suggests and of course win/loss/wins per pond stats should be enough for record keeping, eh?

By the way Universal Eyes, batting average in baseball is not based on plate appearances, but on at-bats. Not the same thing in the rule book. Using plate appearances is for on base percentage. Walks aren't counted as at-bats, but they are counted as plate appearances. Sacrifice bunts aren't counted as at-bats either. Also, the number of hits is divided by the at-bats not the other way around as you have it.
Spring training is just a couple of weeks away!