| Northern | ||||||||||||||
| Rk | Team | Affiliate | W | L | Pct | Gbl | RF | RA | Manager | Stadium | Attendance | Top Batter | Top Pitcher | Playoffs |
| 1 | Holyoke Millers ** | MIL | 78 | 61 | .561 | -- | 586 | 534 | Jim Saul | Mackenzie Stadium | 65,036 | Kevin Bass (8) | Larry Montgomery (5) | League Champions |
| 2 | Buffalo Bisons | PIT | 67 | 70 | .489 | 10.0 | 745 | 674 | Steve Demeter | War Memorial Stadium | 130,674 | Eddie Vargas (6) | Steve Farr (11) | Lost in Semi-Finals |
| 3 | Lynn Sailors | SEA | 66 | 71 | .482 | 11.0 | 601 | 729 | Bobby Floyd | Fraser Field | 50,786 | Roy Clark (15) | Rob Simond (8) | |
| 4 | Glens Falls White Sox | CHW | 63 | 74 | .460 | 14.0 | 738 | 852 | Mike Pazik | East Field Stadium | 84,472 | Lorenzo Gray (9) | Kevin Hickey (15) | |
| Southern | ||||||||||||||
| Rk | Team | Affiliate | W | L | Pct | Gbl | RF | RA | Manager | Stadium | Attendance | Top Batter | Top Pitcher | Playoffs |
| 1 | Bristol Red Sox | BOS | 79 | 60 | .568 | -- | 607 | 596 | Tony Torchia | Muzzy Field | 65,991 | Marty Barrett (23) | Steve Crawford (4) | |
| 2 | Reading Phillies | PHI | 78 | 61 | .561 | 1.0 | 780 | 642 | Ron Clark | Reading Municipal Memoria | 97,235 | Ryne Sandberg (1) | Mark Davis (1) | Lost in Semi-Finals |
| 3 | Waterbury Reds | CIN | 75 | 64 | .540 | 4.0 | 515 | 484 | Mike Compton | Municipal Stadium | 54,807 | Nick Esasky (4) | Jose Brito (3) | Lost in Finals |
| 4 | West Haven Whitecaps | OAK | 47 | 92 | .338 | 32.0 | 512 | 731 | Edward Nottle | Quigley Stadium | 30,112 | Paul Mize (20) | Keith Atherton (2) | |