BP agrees Runner on 1st, no out: .8302 (expected runs) Runner on 2nd, one out: .6574 Runner on 2nd, no out: 1.0657 Runner on 3rd, one out: .9125 That's not the right data. Expected runs takes ALL runs scored and averages them out into one number--this is valuable in the early innings. The expected runs is almost always going to go down when you give away an out--but for scoring ONE more run the percentage may go up depending on the situation. In the bottom of the ninth, you are looking for the % of times that 0 runs scores, and trying to minimize that percentage. Also, if I recall from previously looking up those run expectancy charts, some of the common ones that are used are based off of stats from the late 90s and early 2000s--which were the most offensively homer skewed numbers in the history of baseball. I'd imagine that moving runners over has become more important as the homer rate has gone down. Those numbers are from this season. I haven't looked at ones from previous years, so you could use a sample size argument. Maybe they're weighted for historical trends, I don't know. But, I was talking about the bottom of the 8th inning. I know K-Rod's been pretty solid, but I'd try to maximize offensive output unless you're on the home side and it's the ninth inning or later.