Ya, I guess you can't just look at it as when the bunt gets down, the outcome of the run scoring. I'm guessing that's what they are measuring. It also should include at bats where the batter attempts at some point, it doesn't work, and then that player later strikes out. Not quite sure what all situations should be included in the calculation. I like it with weak batters up, with an average to weak batter on deck. I feel like it's a play it safe type move when you break it down. I mean, shouldn't you look at the success rate (either outcome of everyone is safe, or a run scores and the batter is out) compared to the batter and on deck batter's avg with runners in scoring position? If the probability of the bunt working is greater than the batter's avg, wouldn't the smart move be to bunt? I'm just thinking out loud here, I know you have to account for giving away an out and what that does to the rest of the inning. I guess I'm risk adverse and I'd rather take 1 run (in a lot of situations) than chance getting 0 or more than 1..... Another thing to look at, if there is a runner on 1st and one out, is the batter a higher threat to ground in to a double play (ground ball hitters, slow runners, etc). And yes, let's not turn this in to RRR bashing, it's more about strategy of the play. I think there is a lot to think about and I'm sure I'm only scratching the surface.