Run probability matrix
http://www.tangotiger.net/re24.html
Inning start: 0.481 runs
Batter reaches first: 0.859 runs (+0.378)
Error: runner on second, no outs: 1.1 runs (+0.241)
Sacrifice: runner on third 1 out: . 950 (-0.15) runs
Rbi double: 1 run-0.95 runs+0.664 runs -0.353 runs (2 out runner on 3rd): +0.364
Keep in mind this is mlb data, don't have a matrix for HS ball level.