But the run potential going in are different between the two situations so the batter is credited with how much he exceeded, or didn't, the expectation.
Each will get credited or debited based on the run expectancy in both the bases loaded ABs and the bases empty ABs. The 3B w/bases loaded has a much higher run expectancy and therefore will get credited only with the difference between what he did and the typical amount from that situation. The bases empty 3B also gets a positive score because his team's run expectancy also went up more than what is expected.
I have no memory of this guy's pop Kevin Jarvis even though he threw 12 seasons [1994-1996, 1998-2006] with CIN, SDP, COL, ARZ, MIN, StL, BOS, OAK, SEA, DET Pat Jarvis I remember. Jane Jarvis I remember.
Bottom 7th: two ABs with runners on 1st & 2nd: Pop up, K Top 8th: Two ABs with runner on 3rd: BB, RBI 1B ... and still two outs to tack on to that Dodgers are 4/6 w/RiSP; Mets are 1/6