Correct. I don't think that's the case. Yes, it is. A pitcher can be charged with earned runs that are unearned to the team. Let's say that I start the inning and retire the first two batters. The next guy reaches on a error, which would have been the third out. I proceed to give up a two-run homer to the following hitter. Those two runs are unearned to me and to the team, since there should have already been three outs. Now, the manager takes me out and puts you in. Even though the team in still in "unearned run mode" for the remainder of the inning, you don't inherit that luxury. For you, it's a clean slate. Therefore, any run you surrender could potentially be earned to you but unearned to the team (depending, of course, on how those runs score off of you). ETA: The official language can be found in rule 10.16: and