Probably less than 5 and more than 0. In otherwords, an insignificant amount. helping me to demonstrate my point about failing to measure everything or measure everything accurately. 'it's probably X, so let's not attempt to measure and conclude it's insignificant' while preventing this type of out isn't as valuable than avoiding an out while in the batter's box, over the course of 700 plate appearances the difference between a .325 and a .350 obp is 18 outs prevented. the difference between a .350 and .375 is 17 outs prevented. so let's say the number of times Pierre does this is 5, but you have to diminish that because its not as valuable as an out prevented in the batter's box. so let's say those 5 are as valuable as 3 outs prevented in the batter's box. then you have to add to that the number of reached on errors that Pierre will have over Wilkerson. give him 5 more. that's 8 outs prevented. just with those two items alone, Pierre closes the a 25 point gap in obp by half. look, adherents to sabr can pick apart each individual point I have made, but it doesn't take a statistical genius to come to the conclusion that speed is a very valuable commodity, the true value of which has yet to be measured and is therefore easy to ignore. Where do you get these assumptions from? They bare no resemblence to reality whatsoever. Wilkerson is not Mike Lowel. I think cpaptterson20 already mentioned Wilkerson has only hit into a handfull of DPs in his career. Peirre doesn't take the best advantage of his speed b/c he is not that good of a base stealer. However, it's fine if you think Pierre is a better leadoff hitter then Wilkerson.