| Divisional | |||||||||||||
| Year | Team | W | L | Pct | GB | L10 | Strk | Recent | RF | RA | Mgn | Mgc | |
| American League |   |   |   |   |   |   |   |   |   |   |   |   |   |
| 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 |   |
|   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| National League |   |   |   |   |   |   |   |   |   |   |   |   |   |
| 1988 | Wichita Wind Surge | 69 | 45 | .605 | - |   | 6-4 | W1 | wlwlwwlwwl | 545 | 443 | 102 | 43 |
| 1988 | Spirit Mountain Volcanoes | 69 | 51 | .575 | 3 |   | 9-1 | W2 | wwlwwwwwww | 489 | 440 | 49 | 49 |
| 1988 | Bolton Hill Scotties | 69 | 51 | .575 | 3 |   | 2-8 | L2 | llwllllwll | 597 | 471 | 126 | 49 |
| 1988 | Beast Coast Brushbacks | 66 | 54 | .550 | 6 |   | 6-4 | W1 | wlwwlwlwlw | 532 | 443 | 89 | 52 |
| 1988 | Fairfax Peppers | 61 | 59 | .508 | 11 |   | 5-5 | W4 | wwwwlwllll | 483 | 503 | -20 | 57 |
| 1988 | Milwaukee Road | 58 | 62 | .483 | 14 |   | 3-7 | L1 | lwlwlllllw | 522 | 513 | 9 | 60 |
| 1988 | New York Mets | 58 | 62 | .483 | 14 |   | 3-7 | L4 | llllwlwllw | 495 | 490 | 5 | 60 |
| 1988 | Flushing Rats | 56 | 64 | .467 | 16 |   | 5-5 | L1 | lwllwlwlww | 470 | 480 | -10 | 62 |
| 1988 | Blue Ridge Mountaineers | 53 | 61 | .465 | 16 |   | 6-4 | L1 | lwllwwwwwl | 440 | 486 | -46 | 65 |
| 1988 | Ottawa Lynx | 45 | 75 | .375 | 27 |   | 6-4 | W1 | wlwlwwlwwl | 420 | 513 | -93 | 73 |
| 1988 | East Kenosha Lakers | 39 | 75 | .342 | 30 |   | 3-7 | W1 | wlwwllllll | 351 | 494 | -143 | 79 |
| Wildcard | ||||||||||
| Year | Team | W | L | Pct | GB | L10 | Strk | Recent | Mgc | |
| American League |   |   |   |   |   |   |   |   |   |   |
| 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 |
|   |   |   |   |   |   |   |   |   |   |   |
| National League |   |   |   |   |   |   |   |   |   |   |
| 1988 | Wichita Wind Surge | 69 | 45 | .605 | na |   | 6-4 | W1 | wlwlwwlwwl |   |
| 1988 | Spirit Mountain Volcanoes | 69 | 51 | .575 | - |   | 9-1 | W2 | wwlwwwwwww | 43 |
| 1988 | Bolton Hill Scotties | 69 | 51 | .575 | - |   | 2-8 | L2 | llwllllwll | 43 |
| 1988 | Beast Coast Brushbacks | 66 | 54 | .550 | 3 |   | 6-4 | W1 | wlwwlwlwlw | 46 |
| 1988 | Fairfax Peppers | 61 | 59 | .508 | 8 |   | 5-5 | W4 | wwwwlwllll | 51 |
| 1988 | Milwaukee Road | 58 | 62 | .483 | 11 |   | 3-7 | L1 | lwlwlllllw | 54 |
| 1988 | New York Mets | 58 | 62 | .483 | 11 |   | 3-7 | L4 | llllwlwllw | 54 |
| 1988 | Flushing Rats | 56 | 64 | .467 | 13 |   | 5-5 | L1 | lwllwlwlww | 56 |
| 1988 | Blue Ridge Mountaineers | 53 | 61 | .465 | 13 |   | 6-4 | L1 | lwllwwwwwl | 59 |
| 1988 | Ottawa Lynx | 45 | 75 | .375 | 24 |   | 6-4 | W1 | wlwlwwlwwl | 67 |
| 1988 | East Kenosha Lakers | 39 | 75 | .342 | 27 |   | 3-7 | W1 | wlwwllllll | 73 |
| Expanded1 | |||||||||
| Year | Team | Home | Road | Grass | Turf | vsLHP | vsRHP | Div | InterLg |
| American League |   |   |   |   |   |   |   |   |   |
| 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 |
|   |   |   |   |   |   |   |   |   |   |
| National League |   |   |   |   |   |   |   |   |   |
| 1988 | Wichita Wind Surge | 35-22 | 34-23 | 15-11 | 54-34 | 23-14 | 46-31 | 46-26 | 23-19 |
| 1988 | Spirit Mountain Volcanoes | 41-22 | 28-29 | 19-19 | 50-32 | 19-19 | 50-32 | 44-34 | 25-17 |
| 1988 | Bolton Hill Scotties | 33-18 | 36-33 | 17-15 | 52-36 | 19-20 | 50-31 | 38-40 | 31-11 |
| 1988 | Beast Coast Brushbacks | 41-22 | 25-32 | 59-49 | 7-5 | 27-16 | 39-38 | 46-32 | 20-22 |
| 1988 | Fairfax Peppers | 24-33 | 37-26 | 47-49 | 14-10 | 21-20 | 40-39 | 43-35 | 18-24 |
| 1988 | Milwaukee Road | 30-33 | 28-29 | 43-46 | 15-16 | 22-19 | 36-43 | 37-41 | 21-21 |
| 1988 | New York Mets | 39-30 | 19-32 | 10-22 | 48-40 | 17-27 | 41-35 | 39-39 | 19-23 |
| 1988 | Flushing Rats | 34-29 | 22-35 | 43-46 | 13-18 | 15-16 | 41-48 | 36-42 | 20-22 |
| 1988 | Blue Ridge Mountaineers | 30-27 | 23-34 | 42-41 | 11-20 | 20-24 | 33-37 | 35-37 | 18-24 |
| 1988 | Ottawa Lynx | 20-31 | 25-44 | 13-25 | 32-50 | 23-27 | 22-48 | 29-49 | 16-26 |
| 1988 | East Kenosha Lakers | 22-35 | 17-40 | 10-28 | 29-47 | 12-24 | 27-51 | 27-45 | 12-30 |
| Expanded2 | ||||||
| Year | Team | Lead7 | Tied7 | Trail7 | 1-run | Extra |
| American League |   |   |   |   |   |   |
| 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 |
|   |   |   |   |   |   |   |
| National League |   |   |   |   |   |   |
| 1988 | Wichita Wind Surge | 51-2 | 9-7 | 9-36 | 27-16 | 8-7 |
| 1988 | Spirit Mountain Volcanoes | 50-4 | 10-9 | 9-38 | 27-17 | 6-10 |
| 1988 | Bolton Hill Scotties | 58-4 | 5-4 | 6-43 | 15-21 | 6-4 |
| 1988 | Beast Coast Brushbacks | 59-7 | 1-10 | 6-37 | 10-23 | 3-5 |
| 1988 | Fairfax Peppers | 49-6 | 8-6 | 4-47 | 24-15 | 7-5 |
| 1988 | Milwaukee Road | 44-6 | 4-5 | 10-51 | 15-15 | 5-7 |
| 1988 | New York Mets | 43-7 | 7-5 | 8-50 | 19-22 | 9-7 |
| 1988 | Flushing Rats | 45-5 | 4-12 | 7-47 | 16-20 | 6-13 |
| 1988 | Blue Ridge Mountaineers | 44-8 | 7-5 | 2-48 | 15-16 | 9-7 |
| 1988 | Ottawa Lynx | 39-10 | 5-9 | 1-56 | 13-23 | 2-7 |
| 1988 | East Kenosha Lakers | 29-8 | 4-7 | 6-60 | 11-22 | 7-9 |