Sure, it's possible to present such a stat. What are the batting averages of the players that hit behind him when he's on base versus when he isn't. If he's such a huge distraction to the pitcher that he impacts the game that much, those batters should hit, what, 100 points higher when Furcal's on base? (btw - without looking it up, I'd put money on the fact that they don't) A little while back I did a similar case study with Juan Pierre and Luis Castillo, since they spend the vast majority of their time hitting 1-2 over the last few years. IIRC, Castillo every year had worse numbers with runners on than without, and when Pierre's numbers went up from year to year, Castillo's went down, and vice versa. It was almost a perfect ratio with their OPS. I've done such a thing, as well and came to the same results. However, I've seen a much more comprehensive study that found that the top few basestealers in the league actually can have a measureable impact on the game. But it's along the lines of a few points better instead of 100. In other words, it was a measurable difference but one that I felt showed that it wasn't really worth that much anyway. Interesting, was that study done with the fast runner on base vs. the pitcher in the wind-up or was it done with a fast runner on base vs. a slow runner on base? To me, I don't see any validity in comparing a fast runner on base vs. no one on, there are too many variables; Pitching from the stretch vs. wind-up and the variation of a good start vs. a bad one. If the leadoff hitter goes 3-4 with 2 runs scored and the following hitter goes 2-4, did the second go 2-4 b/c of the leadoff hitter or b/c the pitcher didn't throw well? Of course, if both the leadoff hitter and second hitter go a combined 0-8, did the second hitter not hit well b/c no one was on base distracting the pitcher or b/c the pitcher had real good stuff. Personally, the variable of the pitcher's performance weighs more heavily in the outcome of the 2nd hitter than the theory of runner distraction. It's in the baseball forum somewhere. Mark Peel posted a link to it, I think back in 2003.