League standings -- American League
Regular season
| Divisional |
| Year | Team | W | L | Pct | GB | | L10 | Strk | Recent | RF | RA | Mgn | Mgc |
| 1988 | Bloomington Hoosiers | 106 | 32 | .768 | - |   | 9-1 | L1 | lwwwwwwwww | 785 | 403 | 382 | 0 |
| 1988 | Dayton Triangles | 81 | 57 | .587 | 25 |   | 6-4 | W3 | wwwlllwwwl | 631 | 537 | 94 |   |
| 1988 | Frankfort Tigers | 77 | 67 | .535 | 32 |   | 5-5 | W2 | wwlwwlwlll | 651 | 651 | 0 |   |
| 1988 | Rockford Forest Citys | 73 | 65 | .529 | 33 |   | 6-4 | L3 | lllwwwlwww | 700 | 685 | 15 |   |
| 1988 | Indy Alley Cats | 71 | 67 | .514 | 35 |   | 2-8 | L5 | lllllwllwl | 652 | 673 | -21 |   |
| 1988 | Cleveland Spiders | 70 | 68 | .507 | 36 |   | 4-6 | L3 | lllwlwlwlw | 528 | 572 | -44 |   |
| 1988 | Cuyahoga River Flames | 66 | 72 | .478 | 40 |   | 6-4 | W5 | wwwwwlwlll | 590 | 655 | -65 |   |
| 1988 | Hatteras Pelicans | 65 | 79 | .451 | 44 |   | 5-5 | L2 | llwlwwlwlw | 609 | 707 | -98 |   |
| 1988 | Collierstown Highlanders | 64 | 80 | .444 | 45 |   | 4-6 | L2 | llwllwwlwl | 653 | 651 | 2 |   |
| 1988 | Carolina Bandits | 59 | 79 | .428 | 47 |   | 7-3 | W3 | wwwlwlwwlw | 606 | 654 | -48 |   |
| 1988 | Evanston Black Sox | 47 | 97 | .326 | 62 |   | 4-6 | W2 | wwlwlllllw | 502 | 787 | -285 |   |
| Wildcard |
| Year | Team | W | L | Pct | GB | | L10 | Strk | Recent | Mgc |
| 1988 | Bloomington Hoosiers | 106 | 32 | .768 | na |   | 9-1 | L1 | lwwwwwwwww |   |
| 1988 | Dayton Triangles | 81 | 57 | .587 | - |   | 6-4 | W3 | wwwlllwwwl | 17 |
| 1988 | Frankfort Tigers | 77 | 67 | .535 | 7 |   | 5-5 | W2 | wwlwwlwlll | 29 |
| 1988 | Rockford Forest Citys | 73 | 65 | .529 | 8 |   | 6-4 | L3 | lllwwwlwww | 33 |
| 1988 | Indy Alley Cats | 71 | 67 | .514 | 10 |   | 2-8 | L5 | lllllwllwl | 35 |
| 1988 | Cleveland Spiders | 70 | 68 | .507 | 11 |   | 4-6 | L3 | lllwlwlwlw | 36 |
| 1988 | Cuyahoga River Flames | 66 | 72 | .478 | 15 |   | 6-4 | W5 | wwwwwlwlll | 40 |
| 1988 | Hatteras Pelicans | 65 | 79 | .451 | 19 |   | 5-5 | L2 | llwlwwlwlw | 41 |
| 1988 | Collierstown Highlanders | 64 | 80 | .444 | 20 |   | 4-6 | L2 | llwllwwlwl | 42 |
| 1988 | Carolina Bandits | 59 | 79 | .428 | 22 |   | 7-3 | W3 | wwwlwlwwlw | 47 |
| 1988 | Evanston Black Sox | 47 | 97 | .326 | 37 |   | 4-6 | W2 | wwlwlllllw |   |
| Expanded1 |
| Year | Team | Home | Road | Grass | Turf | vsLHP | vsRHP | Div | InterLg |
| 1988 | Bloomington Hoosiers | 55-14 | 51-18 | 86-20 | 20-12 | 32-6 | 74-26 | 74-22 | 32-10 |
| 1988 | Dayton Triangles | 42-27 | 39-30 | 23-19 | 58-38 | 29-15 | 52-42 | 56-40 | 25-17 |
| 1988 | Frankfort Tigers | 42-27 | 35-40 | 67-58 | 10-9 | 18-26 | 59-41 | 51-51 | 26-16 |
| 1988 | Rockford Forest Citys | 40-29 | 33-36 | 62-44 | 11-21 | 15-19 | 58-46 | 56-40 | 17-25 |
| 1988 | Indy Alley Cats | 42-27 | 29-40 | 61-58 | 10-9 | 16-19 | 55-48 | 52-44 | 19-23 |
| 1988 | Cleveland Spiders | 40-35 | 30-33 | 56-56 | 14-12 | 17-17 | 53-51 | 45-51 | 25-17 |
| 1988 | Cuyahoga River Flames | 41-28 | 25-44 | 56-56 | 10-16 | 14-18 | 52-54 | 47-49 | 19-23 |
| 1988 | Hatteras Pelicans | 31-32 | 34-47 | 27-35 | 38-44 | 17-22 | 48-57 | 47-55 | 18-24 |
| 1988 | Collierstown Highlanders | 31-38 | 33-42 | 27-29 | 37-51 | 16-28 | 48-52 | 47-55 | 17-25 |
| 1988 | Carolina Bandits | 33-42 | 26-37 | 54-71 | 5-8 | 22-19 | 37-60 | 32-64 | 27-15 |
| 1988 | Evanston Black Sox | 30-45 | 17-52 | 36-76 | 11-21 | 11-25 | 36-72 | 33-69 | 14-28 |
| Expanded2 |
| Year | Team | Lead7 | Tied7 | Trail7 | 1-run | Extra |
| 1988 | Bloomington Hoosiers | 88-8 | 11-3 | 7-21 | 25-16 | 9-3 |
| 1988 | Dayton Triangles | 65-4 | 9-12 | 7-41 | 23-24 | 7-7 |
| 1988 | Frankfort Tigers | 64-9 | 7-5 | 6-53 | 28-20 | 5-0 |
| 1988 | Rockford Forest Citys | 58-2 | 6-10 | 9-53 | 20-15 | 9-4 |
| 1988 | Indy Alley Cats | 58-6 | 6-7 | 7-54 | 30-15 | 6-7 |
| 1988 | Cleveland Spiders | 52-7 | 13-12 | 5-49 | 32-29 | 6-6 |
| 1988 | Cuyahoga River Flames | 51-5 | 9-6 | 6-61 | 19-19 | 8-6 |
| 1988 | Hatteras Pelicans | 45-6 | 15-6 | 5-67 | 21-23 | 7-5 |
| 1988 | Collierstown Highlanders | 46-5 | 10-13 | 8-62 | 19-28 | 9-8 |
| 1988 | Carolina Bandits | 44-14 | 8-7 | 7-58 | 22-26 | 9-10 |
| 1988 | Evanston Black Sox | 34-6 | 9-7 | 4-84 | 20-26 | 5-11 |