Roy Mahaffey
Pitching
Baseball Reference Page
| Team | Year | Pos | AB | R | H | HR | RBI | AVG | RC | Def RP | Tot | RPG |
| PIT | 1926 | P | 2 | 0 | 0 | 0 | 0 | 0.000 | -0.3 | -0.3 | -0.5 | -0.803 |
| PIT | 1927 | P | 5 | 0 | 2 | 0 | 1 | 0.400 | 0.5 | 0.0 | 0.5 | 0.485 |
| PHA | 1930 | P | 59 | 2 | 7 | 1 | 7 | 0.119 | -4.1 | 0.0 | -4.1 | -0.235 |
| PHA | 1931 | P | 63 | 7 | 12 | 2 | 8 | 0.190 | 1.1 | 0.3 | 1.4 | 0.076 |
| PHA | 1932 | P | 87 | 7 | 15 | 1 | 6 | 0.172 | -1.6 | -0.2 | -1.8 | -0.072 |
| PHA | 1933 | P | 65 | 4 | 14 | 0 | 6 | 0.215 | -0.1 | 0.3 | 0.2 | 0.009 |
| PHA | 1934 | P | 48 | 5 | 13 | 0 | 4 | 0.271 | 2.5 | -0.2 | 2.3 | 0.200 |
| PHA | 1935 | P | 51 | 3 | 9 | 0 | 1 | 0.176 | -1.2 | 0.2 | -1.0 | -0.070 |
| SLA | 1936 | P | 16 | 0 | 1 | 0 | 0 | 0.063 | -1.1 | -0.1 | -1.2 | -0.247 |