| Most Pitching Losses for a Winning Team | |||||
|---|---|---|---|---|---|
| Player | Team | Year | Age | L | Record |
| Vidal Olbera | DEN | 1978 | 21 | 19 | 86-76 |
| David Arce | DAL | 2007 | 26 | 18 | 92-70 |
| Sal Bermudez | PIT | 2008 | 24 | 18 | 91-71 |
| Bill Fyson | HYU | 1978 | 31 | 18 | 89-73 |
| Ron Robertson | DEN | 2011 | 24 | 18 | 82-80 |
| Sal Bermudez | PIT | 2009 | 25 | 17 | 101-61 |
| Patrick Burgess | PIT | 2030 | 28 | 17 | 84-78 |
| Ethan Costa | CLE | 2008 | 29 | 17 | 84-78 |
| Dewitt Pierce | CHI | 1999 | 28 | 17 | 83-79 |
| J.P. Bacic | HAR | 2021 | 32 | 17 | 83-79 |
| Bryan Foxworth | DEN | 1979 | 22 | 17 | 83-79 |
| Phil Gibson | LOS | 1987 | 31 | 17 | 82-80 |
| Doroteo Coto | HAR | 1982 | 37 | 17 | 82-80 |
| Ed Carroll | WAS | 2017 | 23 | 16 | 96-66 |
| Tyler Garner | MAI | 2014 | 31 | 16 | 92-70 |
| Jimmy Cooney | MOR | 2013 | 25 | 16 | 90-72 |
| Norm Sutton | MIS | 1998 | 29 | 16 | 90-72 |
| Álex Gómez | LOS | 1989 | 26 | 16 | 89-73 |
| Nakazo Sasaki | MAI | 2002 | 40 | 16 | 88-74 |
| Jae'Sean Ismael | PHO | 2047 | 28 | 16 | 88-74 |