| Divisional | |||||||||||||
| Year | Team | W | L | Pct | GB | L10 | Strk | Recent | RF | RA | Mgn | Mgc | |
| 1881 | Minneapolis Millers | 54 | 26 | .675 | - | 7-3 | L3 | lllwwwwwww | 651 | 481 | 170 | 0 | |
| 1881 | Philadelphia Southworths | 51 | 29 | .637 | 3 | 4-6 | L1 | lwwlwwllll | 595 | 418 | 177 | ||
| 1881 | Chicago Whales | 38 | 42 | .475 | 16 | 2-8 | W1 | wllllllllw | 537 | 568 | -31 | ||
| 1881 | Frankford Yellowjackets | 38 | 42 | .475 | 16 | 8-2 | W3 | wwwlwlwwww | 524 | 595 | -71 | ||
| 1881 | Riddler's Medevil BBC | 33 | 47 | .412 | 21 | 4-6 | L3 | lllwwlwwll | 400 | 445 | -45 | ||
| 1881 | Springfield Burning Bridges | 26 | 54 | .325 | 28 | 4-6 | W3 | wwwllllllw | 413 | 613 | -200 | ||
| Wildcard | ||||||||||
| Year | Team | W | L | Pct | GB | L10 | Strk | Recent | Mgc | |
| 1881 | Minneapolis Millers | 54 | 26 | .675 | na | 7-3 | L3 | lllwwwwwww | ||
| 1881 | Philadelphia Southworths | 51 | 29 | .637 | - | 4-6 | L1 | lwwlwwllll | 0 | |
| 1881 | Chicago Whales | 38 | 42 | .475 | 13 | 2-8 | W1 | wllllllllw | ||
| 1881 | Frankford Yellowjackets | 38 | 42 | .475 | 13 | 8-2 | W3 | wwwlwlwwww | ||
| 1881 | Riddler's Medevil BBC | 33 | 47 | .412 | 18 | 4-6 | L3 | lllwwlwwll | ||
| 1881 | Springfield Burning Bridges | 26 | 54 | .325 | 25 | 4-6 | W3 | wwwllllllw | ||
| Expanded1 | |||||||||
| Year | Team | Home | Road | Grass | Turf | vsLHP | vsRHP | Div | InterLg |
| 1881 | Minneapolis Millers | 28-12 | 26-14 | 54-26 | 54-26 | 54-26 | |||
| 1881 | Philadelphia Southworths | 27-13 | 24-16 | 51-29 | 51-29 | 51-29 | |||
| 1881 | Chicago Whales | 18-22 | 20-20 | 38-42 | 38-42 | 38-42 | |||
| 1881 | Frankford Yellowjackets | 20-20 | 18-22 | 38-42 | 38-42 | 38-42 | |||
| 1881 | Riddler's Medevil BBC | 12-28 | 21-19 | 33-47 | 0-1 | 33-46 | 33-47 | ||
| 1881 | Springfield Burning Bridges | 12-28 | 14-26 | 26-54 | 26-54 | 26-54 | |||
| Expanded2 | ||||||
| Year | Team | Lead7 | Tied7 | Trail7 | 1-run | Extra |
| 1881 | Minneapolis Millers | 43-4 | 8-1 | 3-21 | 15-6 | 4-2 |
| 1881 | Philadelphia Southworths | 44-2 | 1-3 | 6-24 | 7-7 | 1-4 |
| 1881 | Chicago Whales | 32-4 | 2-6 | 4-32 | 8-11 | 5-1 |
| 1881 | Frankford Yellowjackets | 31-4 | 3-3 | 4-35 | 11-11 | 3-0 |
| 1881 | Riddler's Medevil BBC | 23-5 | 3-3 | 7-39 | 8-14 | 3-6 |
| 1881 | Springfield Burning Bridges | 21-7 | 3-4 | 2-43 | 10-10 | 1-4 |