| Tm | Player | ERA | Year | IP |
| LBT | KAAT,Jim | 2.05 | 1974 | 255.00 |
| LBT | FULGHAM,John | 2.16 | 1979 | 158.00 |
| LBT | HOLTZMAN,Ken | 2.19 | 1974 | 242.10 |
| LBT | MONTEFUSCO,John | 2.25 | 1975 | 239.20 |
| LBT | SCHATZEDER,Dan | 2.26 | 1979 | 179.10 |
| LBT | FOSTER,Alan | 2.35 | 1973 | 233.10 |
| LBT | MONTEFUSCO,John | 2.38 | 1976 | 265.00 |
| LBT | KAAT,Jim | 2.44 | 1975 | 291.00 |
| LBT | RYAN,Nolan | 2.49 | 1976 | 281.20 |
| LBT | SCHATZEDER,Dan | 2.58 | 1978 | 167.10 |
| LBT | HANDS,Bill | 2.62 | 1973 | 161.10 |
| LBT | HUME,Tom | 2.62 | 1978 | 175.00 |
| LBT | HOLTZMAN,Ken | 2.79 | 1975 | 242.00 |
| LBT | FROST,Dave | 2.80 | 1979 | 215.10 |
| LBT | TRAVERS,Bill | 2.85 | 1980 | 183.10 |
| LBT | GURA,Larry | 2.86 | 1978 | 248.10 |
| LBT | BRILES,Nelson | 2.94 | 1973 | 229.10 |
| LBT | KAAT,Jim | 2.97 | 1976 | 224.10 |
| LBT | MONTEFUSCO,John | 2.99 | 1977 | 183.20 |
| LBT | RYAN,Nolan | 3.06 | 1977 | 299.20 |
| LBT | LEMONGELLO,Mark | 3.06 | 1977 | 185.00 |
| LBT | SCHATZEDER,Dan | 3.08 | 1980 | 225.00 |
| LBT | AUGUSTINE,Jerry | 3.11 | 1976 | 168.00 |
| LBT | HOLTZMAN,Ken | 3.12 | 1973 | 303.10 |
| LBT | RYAN,Nolan | 3.57 | 1974 | 262.10 |
| LBT | RYAN,Nolan | 3.59 | 1979 | 208.10 |
| LBT | AUGUSTINE,Jerry | 3.67 | 1977 | 154.10 |
| LBT | RYAN,Nolan | 4.07 | 1978 | 232.10 |
| LBT | JACKSON,Darrell | 4.12 | 1980 | 188.00 |
| LBT | RYAN,Nolan | 4.20 | 1975 | 190.20 |
| LBT | RYAN,Nolan | 4.34 | 1980 | 224.00 |