| Divisional | ||||||||||||||||
| Year | Team | W | L | Pct | GB | L10 | Strk | Recent | RF | RA | Mgn | Mgc | Pythag | PD | Div | |
| AL |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| 1981 | New York Knights | 91 | 71 | .562 | - |   | 8-2 | W8 | wwwwwwwwll | 710 | 651 | 59 | 0 | 88-74 | 3 | 58-40 |
| 1981 | Eastchester Bay Atlantic Cod | 87 | 76 | .534 | 4 1/2 |   | 10-0 | W10 | wwwwwwwwww | 721 | 632 | 89 |   | 92-71 | -5 | 61-38 |
| 1981 | Cleveland SmokinBats | 86 | 77 | .528 | 5 1/2 |   | 1-9 | L7 | lllllllwll | 746 | 634 | 112 |   | 95-68 | -9 | 50-49 |
| 1981 | Palos Hills PitVipers | 83 | 79 | .512 | 8 |   | 2-8 | W2 | wwllllllll | 747 | 718 | 29 |   | 84-78 | -1 | 44-54 |
| 1981 | Carmel Crush | 81 | 81 | .500 | 10 |   | 8-2 | L1 | lwwwwwwwlw | 716 | 720 | -4 |   | 81-81 | 0 | 54-44 |
| 1981 | Santa Fe Peppers | 75 | 87 | .463 | 16 |   | 5-5 | W1 | wllwlwllww | 613 | 700 | -87 |   | 70-92 | 5 | 42-56 |
| 1981 | Wilmington Quicksteps | 71 | 91 | .438 | 20 |   | 1-9 | L8 | llllllllwl | 685 | 734 | -49 |   | 75-87 | -4 | 43-55 |
| 1981 | Cedar Rapids Cyclones | 66 | 96 | .407 | 25 |   | 5-5 | L2 | llwlwllwww | 647 | 844 | -197 |   | 60-102 | 6 | 41-57 |
|   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| NL |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| 1981 | Chicago Orphans | 102 | 60 | .630 | - |   | 8-2 | L1 | lwwwwwwwlw | 772 | 602 | 170 | 0 | 101-61 | 1 | 71-27 |
| 1981 | Herkimer Magicians | 100 | 62 | .617 | 2 |   | 5-5 | W2 | wwllllwwlw | 785 | 648 | 137 |   | 96-66 | 4 | 58-40 |
| 1981 | Boston Stranglers | 88 | 74 | .543 | 14 |   | 4-6 | L2 | llwlllwlww | 724 | 716 | 8 |   | 82-80 | 6 | 56-42 |
| 1981 | Toledo Mud Hens | 85 | 77 | .525 | 17 |   | 6-4 | L1 | lwwlwwllww | 613 | 575 | 38 |   | 86-76 | -1 | 53-45 |
| 1981 | Los Angeles Kings | 81 | 81 | .500 | 21 |   | 8-2 | W3 | wwwlwwwwwl | 686 | 671 | 15 |   | 83-79 | -2 | 46-52 |
| 1981 | Bloom County Losers | 79 | 83 | .488 | 23 |   | 2-8 | W1 | wllwllllll | 664 | 684 | -20 |   | 79-83 | 0 | 42-56 |
| 1981 | St Louis Browns | 66 | 96 | .407 | 36 |   | 4-6 | L3 | lllwwwllwl | 605 | 705 | -100 |   | 69-93 | -3 | 34-64 |
| 1981 | Gotham City Ghosts | 56 | 106 | .346 | 46 |   | 3-7 | W1 | wllwlllwll | 587 | 787 | -200 |   | 58-104 | -2 | 32-66 |
| Wildcard | ||||||||||||||
| Year | Team | W | L | Pct | GB | Strk | Pythag | Overall | PyPct | OvPct | PD | 1-run | Extra | Mgc |
| AL |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| 1981 | New York Knights | 91 | 71 | .562 | na | W8 | 88-74 | 91-71 | .543 | .562 | 3 | 23-22 | 7-6 |   |
| 1981 | Eastchester Bay Atlantic Cod | 87 | 76 | .534 | - | W10 | 92-71 | 87-76 | .565 | .534 | -5 | 23-36 | 7-8 | 0 |
| 1981 | Cleveland SmokinBats | 86 | 77 | .528 | 1 | L7 | 95-68 | 86-77 | .581 | .528 | -9 | 25-29 | 8-12 |   |
| 1981 | Palos Hills PitVipers | 83 | 79 | .512 | 3 1/2 | W2 | 84-78 | 83-79 | .520 | .512 | -1 | 23-25 | 5-10 |   |
| 1981 | Carmel Crush | 81 | 81 | .500 | 5 1/2 | L1 | 81-81 | 81-81 | .497 | .500 | 0 | 31-23 | 11-10 |   |
| 1981 | Santa Fe Peppers | 75 | 87 | .463 | 11 1/2 | W1 | 70-92 | 75-87 | .434 | .463 | 5 | 32-29 | 10-13 |   |
| 1981 | Wilmington Quicksteps | 71 | 91 | .438 | 15 1/2 | L8 | 75-87 | 71-91 | .466 | .438 | -4 | 23-28 | 6-11 |   |
| 1981 | Cedar Rapids Cyclones | 66 | 96 | .407 | 20 1/2 | L2 | 60-102 | 66-96 | .370 | .407 | 6 | 28-23 | 10-5 |   |
|   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| NL |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| 1981 | Chicago Orphans | 102 | 60 | .630 | na | L1 | 101-61 | 102-60 | .622 | .630 | 1 | 32-25 | 14-7 |   |
| 1981 | Herkimer Magicians | 100 | 62 | .617 | - | W2 | 96-66 | 100-62 | .595 | .617 | 4 | 28-19 | 13-6 | 0 |
| 1981 | Boston Stranglers | 88 | 74 | .543 | 12 | L2 | 82-80 | 88-74 | .506 | .543 | 6 | 26-20 | 7-7 |   |
| 1981 | Toledo Mud Hens | 85 | 77 | .525 | 15 | L1 | 86-76 | 85-77 | .532 | .525 | -1 | 31-26 | 11-8 |   |
| 1981 | Los Angeles Kings | 81 | 81 | .500 | 19 | W3 | 83-79 | 81-81 | .511 | .500 | -2 | 25-22 | 9-8 |   |
| 1981 | Bloom County Losers | 79 | 83 | .488 | 21 | W1 | 79-83 | 79-83 | .485 | .488 | 0 | 28-29 | 8-8 |   |
| 1981 | St Louis Browns | 66 | 96 | .407 | 34 | L3 | 69-93 | 66-96 | .424 | .407 | -3 | 24-30 | 6-11 |   |
| 1981 | Gotham City Ghosts | 56 | 106 | .346 | 44 | W1 | 58-104 | 56-106 | .357 | .346 | -2 | 17-33 | 7-9 |   |
| Expanded1 | |||||||||
| Year | Team | Home | Road | Grass | Turf | vsLHP | vsRHP | Div | InterLg |
| AL |   |   |   |   |   |   |   |   |   |
| 1981 | New York Knights | 45-36 | 46-35 | 79-68 | 12-3 | 26-22 | 65-49 | 58-40 | 33-31 |
| 1981 | Eastchester Bay Atlantic Cod | 46-36 | 41-40 | 81-67 | 6-9 | 25-21 | 62-55 | 61-38 | 26-38 |
| 1981 | Cleveland SmokinBats | 48-33 | 38-44 | 77-71 | 9-6 | 22-22 | 64-55 | 50-49 | 36-28 |
| 1981 | Palos Hills PitVipers | 45-36 | 38-43 | 75-72 | 8-7 | 28-11 | 55-68 | 44-54 | 39-25 |
| 1981 | Carmel Crush | 47-34 | 34-47 | 78-69 | 3-12 | 21-29 | 60-52 | 54-44 | 27-37 |
| 1981 | Santa Fe Peppers | 39-42 | 36-45 | 29-44 | 46-43 | 25-24 | 50-63 | 42-56 | 33-31 |
| 1981 | Wilmington Quicksteps | 39-42 | 32-49 | 62-85 | 9-6 | 16-30 | 55-61 | 43-55 | 28-36 |
| 1981 | Cedar Rapids Cyclones | 36-45 | 30-51 | 60-87 | 6-9 | 15-24 | 51-72 | 41-57 | 25-39 |
|   |   |   |   |   |   |   |   |   |   |
| NL |   |   |   |   |   |   |   |   |   |
| 1981 | Chicago Orphans | 52-29 | 50-31 | 90-54 | 12-6 | 40-16 | 62-44 | 71-27 | 31-33 |
| 1981 | Herkimer Magicians | 52-29 | 48-33 | 86-58 | 14-4 | 22-20 | 78-42 | 58-40 | 42-22 |
| 1981 | Boston Stranglers | 51-30 | 37-44 | 81-63 | 7-11 | 26-16 | 62-58 | 56-42 | 32-32 |
| 1981 | Toledo Mud Hens | 42-39 | 43-38 | 75-69 | 10-8 | 22-19 | 63-58 | 53-45 | 32-32 |
| 1981 | Los Angeles Kings | 40-41 | 41-40 | 71-73 | 10-8 | 27-25 | 54-56 | 46-52 | 35-29 |
| 1981 | Bloom County Losers | 45-36 | 34-47 | 30-40 | 49-43 | 27-24 | 52-59 | 42-56 | 37-27 |
| 1981 | St Louis Browns | 34-47 | 32-49 | 55-89 | 11-7 | 22-34 | 44-62 | 34-64 | 32-32 |
| 1981 | Gotham City Ghosts | 29-52 | 27-54 | 25-45 | 31-61 | 16-24 | 40-82 | 32-66 | 24-40 |
| Expanded2 | ||||||
| Year | Team | Lead7 | Tied7 | Trail7 | 1-run | Extra |
| AL |   |   |   |   |   |   |
| 1981 | New York Knights | 76-10 | 10-4 | 5-57 | 23-22 | 7-6 |
| 1981 | Eastchester Bay Atlantic Cod | 73-12 | 6-13 | 8-51 | 23-36 | 7-8 |
| 1981 | Cleveland SmokinBats | 68-10 | 13-9 | 5-58 | 25-29 | 8-12 |
| 1981 | Palos Hills PitVipers | 67-7 | 9-11 | 7-61 | 23-25 | 5-10 |
| 1981 | Carmel Crush | 62-4 | 11-13 | 8-64 | 31-23 | 11-10 |
| 1981 | Santa Fe Peppers | 54-13 | 10-10 | 11-64 | 32-29 | 10-13 |
| 1981 | Wilmington Quicksteps | 58-7 | 7-12 | 6-72 | 23-28 | 6-11 |
| 1981 | Cedar Rapids Cyclones | 51-11 | 7-7 | 8-78 | 28-23 | 10-5 |
|   |   |   |   |   |   |   |
| NL |   |   |   |   |   |   |
| 1981 | Chicago Orphans | 82-7 | 10-6 | 10-47 | 32-25 | 14-7 |
| 1981 | Herkimer Magicians | 78-8 | 8-5 | 14-49 | 28-19 | 13-6 |
| 1981 | Boston Stranglers | 70-7 | 5-6 | 13-61 | 26-20 | 7-7 |
| 1981 | Toledo Mud Hens | 64-3 | 12-13 | 9-61 | 31-26 | 11-8 |
| 1981 | Los Angeles Kings | 65-11 | 14-8 | 2-62 | 25-22 | 9-8 |
| 1981 | Bloom County Losers | 58-8 | 11-10 | 10-65 | 28-29 | 8-8 |
| 1981 | St Louis Browns | 46-7 | 7-11 | 13-78 | 24-30 | 6-11 |
| 1981 | Gotham City Ghosts | 40-11 | 9-11 | 7-84 | 17-33 | 7-9 |