I may have been mistaken, but I thought I could recall situations where there was not a W or L credited to any P in MLB. like if go ahead run was left on base by SP, but scored after SP taken out (no longer pitcher of record, but still responsible for the run).@bmakj IS that an official HS scoring rule? in MLB there is always a winning pitcher. If the starting pitcher does not go 5 but there was never a lead change, the official scorer decides which relief pitcher deserved the W.