League standings -- American League
Regular season
| Divisional |
| Year | Team | W | L | Pct | GB | | L10 | Strk | Recent | RF | RA | Mgn | Mgc |
| 1988 | Bloomington Hoosiers | 90 | 30 | .750 | - |   | 8-2 | W1 | wlwwwwwlww | 676 | 358 | 318 | 26 |
| 1988 | Dayton Triangles | 67 | 47 | .588 | 20 |   | 6-4 | W2 | wwlwwwlwll | 507 | 448 | 59 | 66 |
| 1988 | Frankfort Tigers | 68 | 52 | .567 | 22 |   | 4-6 | L1 | lwwwlllwll | 540 | 525 | 15 | 65 |
| 1988 | Indy Alley Cats | 64 | 56 | .533 | 26 |   | 7-3 | W2 | wwllwwwwlw | 571 | 552 | 19 | 69 |
| 1988 | Cleveland Spiders | 62 | 58 | .517 | 28 |   | 7-3 | W3 | wwwlwwwlwl | 456 | 497 | -41 | 71 |
| 1988 | Rockford Forest Citys | 60 | 60 | .500 | 30 |   | 4-6 | W1 | wlllwwlllw | 619 | 613 | 6 | 73 |
| 1988 | Cuyahoga River Flames | 53 | 61 | .465 | 34 |   | 5-5 | W1 | wlwwllwlwl | 477 | 552 | -75 | 80 |
| 1988 | Collierstown Highlanders | 55 | 65 | .458 | 35 |   | 3-7 | L1 | lwlllllwlw | 542 | 547 | -5 | 78 |
| 1988 | Hatteras Pelicans | 54 | 66 | .450 | 36 |   | 5-5 | L2 | llwwllwwwl | 517 | 601 | -84 | 79 |
| 1988 | Carolina Bandits | 48 | 66 | .421 | 39 |   | 4-6 | L2 | llwllllwww | 507 | 555 | -48 | 85 |
| 1988 | Evanston Black Sox | 38 | 82 | .317 | 52 |   | 2-8 | L3 | lllwllllwl | 413 | 645 | -232 |   |
| Wildcard |
| Year | Team | W | L | Pct | GB | | L10 | Strk | Recent | Mgc |
| 1988 | Bloomington Hoosiers | 90 | 30 | .750 | na |   | 8-2 | W1 | wlwwwwwlww |   |
| 1988 | Dayton Triangles | 67 | 47 | .588 | - |   | 6-4 | W2 | wwlwwwlwll | 44 |
| 1988 | Frankfort Tigers | 68 | 52 | .567 | 2 |   | 4-6 | L1 | lwwwlllwll | 48 |
| 1988 | Indy Alley Cats | 64 | 56 | .533 | 6 |   | 7-3 | W2 | wwllwwwwlw | 52 |
| 1988 | Cleveland Spiders | 62 | 58 | .517 | 8 |   | 7-3 | W3 | wwwlwwwlwl | 54 |
| 1988 | Rockford Forest Citys | 60 | 60 | .500 | 10 |   | 4-6 | W1 | wlllwwlllw | 56 |
| 1988 | Cuyahoga River Flames | 53 | 61 | .465 | 14 |   | 5-5 | W1 | wlwwllwlwl | 63 |
| 1988 | Collierstown Highlanders | 55 | 65 | .458 | 15 |   | 3-7 | L1 | lwlllllwlw | 61 |
| 1988 | Hatteras Pelicans | 54 | 66 | .450 | 16 |   | 5-5 | L2 | llwwllwwwl | 62 |
| 1988 | Carolina Bandits | 48 | 66 | .421 | 19 |   | 4-6 | L2 | llwllllwww | 68 |
| 1988 | Evanston Black Sox | 38 | 82 | .317 | 32 |   | 2-8 | L3 | lllwllllwl | 78 |
| Expanded1 |
| Year | Team | Home | Road | Grass | Turf | vsLHP | vsRHP | Div | InterLg |
| 1988 | Bloomington Hoosiers | 50-13 | 40-17 | 70-18 | 20-12 | 30-6 | 60-24 | 58-20 | 32-10 |
| 1988 | Dayton Triangles | 36-21 | 31-26 | 19-17 | 48-30 | 26-13 | 41-34 | 42-30 | 25-17 |
| 1988 | Frankfort Tigers | 41-22 | 27-30 | 62-45 | 6-7 | 16-21 | 52-31 | 42-36 | 26-16 |
| 1988 | Indy Alley Cats | 38-25 | 26-31 | 54-47 | 10-9 | 16-16 | 48-40 | 45-33 | 19-23 |
| 1988 | Cleveland Spiders | 36-33 | 26-25 | 50-50 | 12-8 | 16-15 | 46-43 | 37-41 | 25-17 |
| 1988 | Rockford Forest Citys | 35-28 | 25-32 | 52-42 | 8-18 | 12-19 | 48-41 | 43-35 | 17-25 |
| 1988 | Cuyahoga River Flames | 32-25 | 21-36 | 46-48 | 7-13 | 13-18 | 40-43 | 34-38 | 19-23 |
| 1988 | Collierstown Highlanders | 25-26 | 30-39 | 27-29 | 28-36 | 12-27 | 43-38 | 38-40 | 17-25 |
| 1988 | Hatteras Pelicans | 24-27 | 30-39 | 23-27 | 31-39 | 13-16 | 41-50 | 36-42 | 18-24 |
| 1988 | Carolina Bandits | 24-33 | 24-33 | 43-58 | 5-8 | 19-15 | 29-51 | 21-51 | 27-15 |
| 1988 | Evanston Black Sox | 25-32 | 13-50 | 31-63 | 7-19 | 10-19 | 28-63 | 24-54 | 14-28 |
| Expanded2 |
| Year | Team | Lead7 | Tied7 | Trail7 | 1-run | Extra |
| 1988 | Bloomington Hoosiers | 74-8 | 9-3 | 7-19 | 20-16 | 9-3 |
| 1988 | Dayton Triangles | 53-4 | 7-11 | 7-32 | 21-20 | 5-7 |
| 1988 | Frankfort Tigers | 57-8 | 6-5 | 5-39 | 26-14 | 5-0 |
| 1988 | Indy Alley Cats | 53-6 | 5-7 | 6-43 | 27-14 | 5-7 |
| 1988 | Cleveland Spiders | 46-4 | 12-11 | 4-43 | 28-23 | 6-6 |
| 1988 | Rockford Forest Citys | 49-2 | 4-10 | 7-48 | 13-15 | 5-4 |
| 1988 | Cuyahoga River Flames | 39-4 | 8-4 | 6-53 | 18-13 | 8-1 |
| 1988 | Collierstown Highlanders | 37-4 | 10-9 | 8-52 | 18-23 | 9-5 |
| 1988 | Hatteras Pelicans | 37-6 | 13-4 | 4-56 | 16-18 | 5-5 |
| 1988 | Carolina Bandits | 36-12 | 7-4 | 5-50 | 18-23 | 8-9 |
| 1988 | Evanston Black Sox | 25-6 | 9-7 | 4-69 | 15-23 | 5-10 |