| Most Pitching Losses for a Winning Team | |||||
|---|---|---|---|---|---|
| Player | Team | Year | Age | L | Record |
| Bert Blyleven | MIN | 1971 | 20 | 22 | 85-77 |
| Rick Reuschel | CHC | 1975 | 26 | 21 | 89-73 |
| Jim Kaat | MIN | 1975 | 36 | 20 | 88-74 |
| Milt Pappas | ATL | 1972 | 33 | 20 | 85-77 |
| Doug Rau | WAS | 1975 | 26 | 19 | 91-71 |
| Rich Gossage | WAS | 1975 | 23 | 19 | 91-71 |
| Mark Fidrych | MIN | 1979 | 24 | 18 | 100-62 |
| Tommy John | NYM | 1974 | 31 | 18 | 95-67 |
| Dave Rozema | CWS | 1978 | 21 | 18 | 92-70 |
| Dennis Martinez | MON | 1984 | 30 | 18 | 89-73 |
| Pat Jarvis | DET | 1975 | 34 | 18 | 89-73 |
| Jim Kaat | MIN | 1973 | 34 | 18 | 84-78 |
| Storm Davis | TOR | 1983 | 21 | 18 | 83-79 |
| Jim Hickey | LAD | 1993 | 31 | 17 | 98-64 |
| Pat Jarvis | ATL | 1971 | 30 | 17 | 97-65 |
| Bob Gibson | STL | 1977 | 41 | 17 | 96-66 |
| Jim Kaat | MIN | 1978 | 39 | 17 | 95-68 |
| Randy Jones | CAL | 1976 | 26 | 17 | 95-67 |
| Mario Soto | LAD | 1979 | 22 | 17 | 93-69 |
| Marcos Ortega | MIN | 1985 | 31 | 17 | 92-70 |