League team pitching totals - 1931 American League
Regular season
| Primary | 
| Team | ERA | W | L | S | G | CG | INN | H | R | ER | BB | K | HR | GDP | 
| Lincoln City Riptide |   3.28 | 112 | 42 | 33 | 154 | 61 | 1370.1 | 1435 | 657 | 499 | 360 | 594 | 72 | 118 | 
| Schenectady Blue Sox |   3.55 | 109 | 45 | 28 | 154 | 50 | 1385.1 | 1491 | 660 | 547 | 381 | 603 | 97 | 147 | 
| New York Mutuals |   3.69 | 82 | 72 | 20 | 154 | 43 | 1376.1 | 1432 | 733 | 564 | 411 | 586 | 111 | 136 | 
| New Haven Whiffenpoofs |   4.11 | 68 | 86 | 14 | 154 | 63 | 1378.1 | 1526 | 765 | 630 | 432 | 487 | 81 | 140 | 
| Frankfort Frogs |   4.50 | 65 | 89 | 20 | 154 | 49 | 1363.0 | 1637 | 872 | 682 | 450 | 505 | 93 | 142 | 
| Louisville Colonels |   4.53 | 62 | 92 | 21 | 154 | 33 | 1358.1 | 1611 | 884 | 683 | 502 | 599 | 71 | 135 | 
| San Diego Glaziers |   4.78 | 48 | 106 | 19 | 154 | 34 | 1358.2 | 1586 | 859 | 722 | 547 | 507 | 115 | 120 | 
| Totals |   4.06 | 546 | 532 | 155 | 1078 | 333 | 9590.1 | 10718 | 5430 | 4327 | 3083 | 3881 | 640 | 938 | 
| Secondary | 
| Team | IW | HBP | SH | SF | WP | BK | SB | CS | PK | H/9 | BB/9 | R/9 | K/9 | HR/9 | K/BB | 
| Lincoln City Riptide | 20 | 28 | 33 | 45 | 25 | 0 | 33 | 26 | 5 |   9.4 |   2.4 |  12.0 |   3.9 |   0.5 |  1.6 | 
| Schenectady Blue Sox | 36 | 27 | 20 | 36 | 20 | 0 | 27 | 14 | 3 |   9.7 |   2.5 |  12.3 |   3.9 |   0.6 |  1.6 | 
| New York Mutuals | 36 | 25 | 44 | 37 | 19 | 0 | 24 | 22 | 3 |   9.4 |   2.7 |  12.2 |   3.8 |   0.7 |  1.4 | 
| New Haven Whiffenpoofs | 20 | 27 | 39 | 51 | 9 | 5 | 49 | 25 | 3 |  10.0 |   2.8 |  13.0 |   3.2 |   0.5 |  1.1 | 
| Frankfort Frogs | 34 | 26 | 52 | 62 | 18 | 1 | 65 | 35 | 9 |  10.8 |   3.0 |  14.0 |   3.3 |   0.6 |  1.1 | 
| Louisville Colonels | 33 | 29 | 55 | 76 | 33 | 0 | 47 | 25 | 6 |  10.7 |   3.3 |  14.2 |   4.0 |   0.5 |  1.2 | 
| San Diego Glaziers | 45 | 34 | 46 | 62 | 41 | 1 | 61 | 29 | 3 |  10.5 |   3.6 |  14.4 |   3.4 |   0.8 |  0.9 | 
| Totals | 224 | 196 | 289 | 369 | 165 | 7 | 306 | 176 | 32 |  10.1 |   2.9 |  13.1 |   3.6 |   0.6 |  1.3 | 
| Analytical | 
| Team | OPS | WHIP | BIP | IPAVG | TBW | TBW/BF | TBWH | TBWH/BF | RC | RC27 | RCERA | CERA | 
| Lincoln City Riptide |  .679 |  1.31 | 4895 |  .278 | 2393 |  .402 | 2421 |  .407 | 617.1 |  3.9 |   3.65 |   3.43 | 
| Schenectady Blue Sox |  .705 |  1.35 | 4916 |  .284 | 2543 |  .422 | 2570 |  .427 | 664.1 |  4.2 |   3.88 |   3.76 | 
| New York Mutuals |  .700 |  1.34 | 4893 |  .270 | 2545 |  .422 | 2570 |  .426 | 650.7 |  4.1 |   3.83 |   3.69 | 
| New Haven Whiffenpoofs |  .723 |  1.42 | 5055 |  .286 | 2612 |  .429 | 2639 |  .434 | 708.3 |  4.5 |   4.16 |   4.02 | 
| Frankfort Frogs |  .770 |  1.53 | 5095 |  .303 | 2819 |  .457 | 2845 |  .461 | 808.7 |  5.2 |   4.81 |   4.65 | 
| Louisville Colonels |  .758 |  1.56 | 5002 |  .308 | 2769 |  .446 | 2798 |  .451 | 795.4 |  5.1 |   4.74 |   4.59 | 
| San Diego Glaziers |  .778 |  1.57 | 5012 |  .293 | 2904 |  .467 | 2938 |  .473 | 839.2 |  5.4 |   5.00 |   4.87 | 
| Totals |  .731 |  1.44 | 34868 |  .289 | 18585 |  .436 | 18781 |  .440 | 5072.3 |  4.6 |   4.28 |   4.13 | 
| Starters | 
| Team | GS | CG | CG% | SHO | QS | QS% | RS | RS/G | RL | RLS | RL% | PCH/G | STR% | 
| Lincoln City Riptide | 154 | 61 |  .396 | 11 | 99 |  .643 | 976 |   6.3 | 123 | 39 |  .317 | 133.7 |  .640 | 
| Schenectady Blue Sox | 154 | 50 |  .325 | 9 | 91 |  .591 | 1068 |   6.9 | 157 | 53 |  .338 | 135.2 |  .638 | 
| New York Mutuals | 154 | 43 |  .279 | 10 | 89 |  .578 | 812 |   5.3 | 120 | 53 |  .442 | 133.2 |  .631 | 
| New Haven Whiffenpoofs | 154 | 63 |  .409 | 10 | 82 |  .532 | 678 |   4.4 | 104 | 41 |  .394 | 135.7 |  .621 | 
| Frankfort Frogs | 154 | 49 |  .318 | 4 | 75 |  .487 | 801 |   5.2 | 180 | 82 |  .456 | 135.3 |  .627 | 
| Louisville Colonels | 154 | 33 |  .214 | 4 | 79 |  .513 | 723 |   4.7 | 203 | 94 |  .463 | 141.4 |  .621 | 
| San Diego Glaziers | 154 | 34 |  .221 | 4 | 75 |  .487 | 553 |   3.6 | 198 | 92 |  .465 | 140.1 |  .610 | 
| Totals | 1078 | 333 |  .309 | 52 | 590 |  .547 | 5611 |   5.2 | 1085 | 454 |  .418 | 136.4 |  .627 | 
| Relievers | 
| Team | SVO | S | SV% | BS | BS% | HLD | IR | IRS | IR% | G | GR | R/G | GF | R/GF | 
| Lincoln City Riptide | 45 | 33 |  .733 | 9 |  .200 | 10 | 123 | 39 |  .317 | 154 | 154 |  1.0 | 93 |  1.7 | 
| Schenectady Blue Sox | 42 | 28 |  .667 | 12 |  .286 | 21 | 157 | 53 |  .338 | 154 | 197 |  1.3 | 104 |  1.9 | 
| New York Mutuals | 33 | 20 |  .606 | 11 |  .333 | 5 | 120 | 53 |  .442 | 154 | 200 |  1.3 | 111 |  1.8 | 
| New Haven Whiffenpoofs | 24 | 14 |  .583 | 9 |  .375 | 8 | 104 | 41 |  .394 | 154 | 152 |  1.0 | 91 |  1.7 | 
| Frankfort Frogs | 36 | 20 |  .556 | 14 |  .389 | 7 | 180 | 82 |  .456 | 154 | 196 |  1.3 | 105 |  1.9 | 
| Louisville Colonels | 37 | 21 |  .568 | 14 |  .378 | 7 | 203 | 94 |  .463 | 154 | 232 |  1.5 | 121 |  1.9 | 
| San Diego Glaziers | 33 | 19 |  .576 | 14 |  .424 | 3 | 198 | 92 |  .465 | 154 | 234 |  1.5 | 120 |  2.0 | 
| Totals | 250 | 155 |  .620 | 83 |  .332 | 61 | 1085 | 454 |  .418 | 1078 | 1365 |  1.3 | 745 |  1.8 |