League standings - 2021 A
Regular season
| Divisional |
| Year | Team | W | L | Pct | GB | | L10 | Strk | Recent | RF | RA | Mgn | Mgc |
| East |   |   |   |   |   |   |   |   |   |   |   |   |   |
| 2021 | Zug Island Zombies | 96 | 66 | .593 | - |   | 3-7 | W1 | wlllllllww | 824 | 706 | 118 | 0 |
| 2021 | Pasadena Gold Monkeys | 90 | 72 | .556 | 6 |   | 6-4 | L2 | llwwwwwllw | 723 | 631 | 92 |   |
| 2021 | Toledo Mud Hens | 87 | 75 | .537 | 9 |   | 4-6 | L2 | llwwlllwwl | 705 | 685 | 20 |   |
| 2021 | Braintree Shamrocks | 85 | 77 | .525 | 11 |   | 7-3 | W2 | wwllwwwwwl | 796 | 681 | 115 |   |
| 2021 | Durham Bulls | 78 | 84 | .481 | 18 |   | 6-4 | L1 | lwwwwlwllw | 605 | 608 | -3 |   |
| 2021 | Gatineau Renegades | 58 | 104 | .358 | 38 |   | 4-6 | W2 | wwlllwlwll | 532 | 761 | -229 |   |
|   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| West |   |   |   |   |   |   |   |   |   |   |   |   |   |
| 2021 | Lake Oroville Lunkers | 101 | 61 | .623 | - |   | 4-6 | L3 | lllwlwwwll | 829 | 580 | 249 | 0 |
| 2021 | Fresno Onionskins | 91 | 71 | .562 | 10 |   | 3-7 | L1 | lwlwllwlll | 801 | 709 | 92 |   |
| 2021 | Rideau River Rebels | 86 | 76 | .531 | 15 |   | 4-6 | L3 | lllwllwlww | 851 | 786 | 65 |   |
| 2021 | Boston Stranglers | 86 | 76 | .531 | 15 |   | 7-3 | W3 | wwwllwwwwl | 781 | 769 | 12 |   |
| 2021 | Houston Colt.45's | 67 | 95 | .414 | 34 |   | 5-5 | W3 | wwwlwllllw | 628 | 769 | -141 |   |
| 2021 | Palos Hills Pit Vipers | 59 | 103 | .364 | 42 |   | 6-4 | W1 | wlwwwllwwl | 544 | 739 | -195 |   |
| Wildcard |
| Year | Team | W | L | Pct | GB | | L10 | Strk | Recent | Mgc |
| 2021 | Lake Oroville Lunkers | 101 | 61 | .623 | na |   | 4-6 | L3 | lllwlwwwll |   |
| 2021 | Zug Island Zombies | 96 | 66 | .593 | na |   | 3-7 | W1 | wlllllllww |   |
| 2021 | Fresno Onionskins | 91 | 71 | .562 | - |   | 3-7 | L1 | lwlwllwlll | 0 |
| 2021 | Pasadena Gold Monkeys | 90 | 72 | .556 | 1 |   | 6-4 | L2 | llwwwwwllw |   |
| 2021 | Toledo Mud Hens | 87 | 75 | .537 | 4 |   | 4-6 | L2 | llwwlllwwl |   |
| 2021 | Rideau River Rebels | 86 | 76 | .531 | 5 |   | 4-6 | L3 | lllwllwlww |   |
| 2021 | Boston Stranglers | 86 | 76 | .531 | 5 |   | 7-3 | W3 | wwwllwwwwl |   |
| 2021 | Braintree Shamrocks | 85 | 77 | .525 | 6 |   | 7-3 | W2 | wwllwwwwwl |   |
| 2021 | Durham Bulls | 78 | 84 | .481 | 13 |   | 6-4 | L1 | lwwwwlwllw |   |
| 2021 | Houston Colt.45's | 67 | 95 | .414 | 24 |   | 5-5 | W3 | wwwlwllllw |   |
| 2021 | Palos Hills Pit Vipers | 59 | 103 | .364 | 32 |   | 6-4 | W1 | wlwwwllwwl |   |
| 2021 | Gatineau Renegades | 58 | 104 | .358 | 33 |   | 4-6 | W2 | wwlllwlwll |   |
| Expanded1 |
| Year | Team | Home | Road | Grass | Turf | vsLHP | vsRHP | Div | InterLg |
| 2021 | Lake Oroville Lunkers | 58-23 | 43-38 | 100-60 | 1-1 | 30-23 | 71-38 | 56-34 | 17-7 |
| 2021 | Zug Island Zombies | 50-31 | 46-35 | 95-63 | 1-3 | 26-20 | 70-46 | 49-41 | 13-11 |
| 2021 | Fresno Onionskins | 46-35 | 45-36 | 89-71 | 2-0 | 29-23 | 62-48 | 48-42 | 16-8 |
| 2021 | Pasadena Gold Monkeys | 48-33 | 42-39 | 87-71 | 3-1 | 28-28 | 62-44 | 53-37 | 12-12 |
| 2021 | Toledo Mud Hens | 49-32 | 38-43 | 86-72 | 1-3 | 27-19 | 60-56 | 49-41 | 15-9 |
| 2021 | Rideau River Rebels | 46-35 | 40-41 | 85-75 | 1-1 | 23-10 | 63-66 | 50-40 | 11-13 |
| 2021 | Boston Stranglers | 50-31 | 36-45 | 86-74 | 0-2 | 27-22 | 59-54 | 50-40 | 8-16 |
| 2021 | Braintree Shamrocks | 47-34 | 38-43 | 83-75 | 2-2 | 29-18 | 56-59 | 49-41 | 15-9 |
| 2021 | Durham Bulls | 39-42 | 39-42 | 75-83 | 3-1 | 32-20 | 46-64 | 38-52 | 15-9 |
| 2021 | Houston Colt.45's | 35-46 | 32-49 | 67-93 | 0-2 | 14-18 | 53-77 | 35-55 | 13-11 |
| 2021 | Palos Hills Pit Vipers | 33-48 | 26-55 | 58-102 | 1-1 | 18-22 | 41-81 | 31-59 | 13-11 |
| 2021 | Gatineau Renegades | 33-48 | 25-56 | 58-100 | 0-4 | 14-49 | 44-55 | 32-58 | 8-16 |
| Expanded2 |
| Year | Team | Lead7 | Tied7 | Trail7 | 1-run | Extra |
| 2021 | Lake Oroville Lunkers | 82-7 | 9-10 | 6-39 | 22-24 | 9-9 |
| 2021 | Zug Island Zombies | 73-5 | 13-5 | 6-52 | 27-20 | 8-9 |
| 2021 | Fresno Onionskins | 64-7 | 11-6 | 9-56 | 26-23 | 12-12 |
| 2021 | Pasadena Gold Monkeys | 64-6 | 10-7 | 10-57 | 32-27 | 9-9 |
| 2021 | Toledo Mud Hens | 62-4 | 13-7 | 7-61 | 30-23 | 10-4 |
| 2021 | Rideau River Rebels | 62-6 | 10-8 | 8-58 | 25-24 | 5-12 |
| 2021 | Boston Stranglers | 71-6 | 4-7 | 8-57 | 22-16 | 8-3 |
| 2021 | Braintree Shamrocks | 67-10 | 8-13 | 4-51 | 19-31 | 5-7 |
| 2021 | Durham Bulls | 62-4 | 10-14 | 4-58 | 22-33 | 11-6 |
| 2021 | Houston Colt.45's | 44-6 | 13-13 | 7-72 | 26-27 | 9-9 |
| 2021 | Palos Hills Pit Vipers | 46-5 | 8-12 | 2-81 | 19-20 | 4-9 |
| 2021 | Gatineau Renegades | 37-6 | 11-14 | 7-78 | 27-29 | 9-9 |