League standings - 1931 American League
Regular season
| Divisional | 
| Year | Team | W | L | Pct | GB |  | L10 | Strk | Recent | RF | RA | Mgn | Mgc | 
| 1931 | Lincoln City Riptide | 112 | 42 |  .727 | - |   | 5-5 | L1 | lwlwwlwlwl | 976 | 657 | 319 | 0 | 
| 1931 | Schenectady Blue Sox | 109 | 45 |  .708 | 3 |   | 8-2 | L1 | lwwwwwwlww | 1068 | 660 | 408 |   | 
| 1931 | New York Mutuals | 82 | 72 |  .532 | 30 |   | 5-5 | L1 | lwwwlwlllw | 812 | 733 | 79 |   | 
| 1931 | New Haven Whiffenpoofs | 68 | 86 |  .442 | 44 |   | 4-6 | L1 | lwllwwllwl | 678 | 765 | -87 |   | 
| 1931 | Frankfort Frogs | 65 | 89 |  .422 | 47 |   | 3-7 | W1 | wllllllwlw | 801 | 872 | -71 |   | 
| 1931 | Louisville Colonels | 62 | 92 |  .403 | 50 |   | 5-5 | W1 | wlwllwlwlw | 723 | 884 | -161 |   | 
| 1931 | San Diego Glaziers | 48 | 106 |  .312 | 64 |   | 5-5 | W1 | wlwwllwlwl | 553 | 859 | -306 |   | 
| Wildcard | 
| Year | Team | W | L | Pct | GB |  | L10 | Strk | Recent | Mgc | 
| 1931 | Lincoln City Riptide | 112 | 42 |  .727 | na |   | 5-5 | L1 | lwlwwlwlwl |   | 
| 1931 | Schenectady Blue Sox | 109 | 45 |  .708 | - |   | 8-2 | L1 | lwwwwwwlww | 0 | 
| 1931 | New York Mutuals | 82 | 72 |  .532 | 27 |   | 5-5 | L1 | lwwwlwlllw |   | 
| 1931 | New Haven Whiffenpoofs | 68 | 86 |  .442 | 41 |   | 4-6 | L1 | lwllwwllwl |   | 
| 1931 | Frankfort Frogs | 65 | 89 |  .422 | 44 |   | 3-7 | W1 | wllllllwlw |   | 
| 1931 | Louisville Colonels | 62 | 92 |  .403 | 47 |   | 5-5 | W1 | wlwllwlwlw |   | 
| 1931 | San Diego Glaziers | 48 | 106 |  .312 | 61 |   | 5-5 | W1 | wlwwllwlwl |   | 
| Expanded1 | 
| Year | Team | Home | Road | Grass | Turf | vsLHP | vsRHP | Div | InterLg | 
| 1931 | Lincoln City Riptide | 61-16 | 51-26 | 112-42 |   | 38-12 | 74-30 | 63-21 | 49-21 | 
| 1931 | Schenectady Blue Sox | 59-18 | 50-27 | 109-45 |   | 31-13 | 78-32 | 56-28 | 53-17 | 
| 1931 | New York Mutuals | 45-32 | 37-40 | 82-72 |   | 24-23 | 58-49 | 50-34 | 32-38 | 
| 1931 | New Haven Whiffenpoofs | 35-42 | 33-44 | 68-86 |   | 27-27 | 41-59 | 35-49 | 33-37 | 
| 1931 | Frankfort Frogs | 38-39 | 27-50 | 65-89 |   | 21-27 | 44-62 | 35-49 | 30-40 | 
| 1931 | Louisville Colonels | 34-43 | 28-49 | 62-92 |   | 16-29 | 46-63 | 28-56 | 34-36 | 
| 1931 | San Diego Glaziers | 31-46 | 17-60 | 48-106 |   | 19-32 | 29-74 | 27-57 | 21-49 | 
| Expanded2 | 
| Year | Team | Lead7 | Tied7 | Trail7 | 1-run | Extra | 
| 1931 | Lincoln City Riptide | 87-3 | 9-4 | 16-35 | 27-15 | 5-3 | 
| 1931 | Schenectady Blue Sox | 90-4 | 10-9 | 9-32 | 27-19 | 9-5 | 
| 1931 | New York Mutuals | 62-5 | 5-11 | 15-56 | 19-23 | 9-5 | 
| 1931 | New Haven Whiffenpoofs | 50-13 | 10-8 | 8-65 | 26-26 | 6-8 | 
| 1931 | Frankfort Frogs | 56-11 | 2-7 | 7-71 | 17-27 | 3-7 | 
| 1931 | Louisville Colonels | 44-15 | 11-5 | 7-72 | 23-26 | 5-7 | 
| 1931 | San Diego Glaziers | 35-11 | 8-11 | 5-84 | 20-27 | 5-7 |