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| | | | | | | | | | BUR | CAM | CON | HB | HRT | MAN | NWB | NL | NBR | NWP | PRT | POR | | Team Index | Draft History | Starters: Positional - Pitchers | Registers: Batters - Pitchers | Leaders: Batters - Pitchers |  | Newburyport River Rats Team Index |
| | Year | W | L | WPct | Finish | GB | Exp Rec | Diff | Avg | ERA | BABIP | Playoffs | Champion | Attendance | Payroll | Balance | | 1941 | 49 | 51 | .490 | 3rd | 18.0 | 44-56 | 5 | .179 | 1.87 | .196 | | | 108,227 | $0 | $0 | | 1942 | 41 | 59 | .410 | 4th | 38.0 | 45-55 | -4 | .269 | 5.45 | .294 | | | 79,076 | $0 | $0 | | 1943 | 73 | 27 | .730 | 1st | - | 79-21 | -6 | .369 | 4.57 | .312 | X | X | 204,907 | $0 | $0 | | 1944 | 70 | 30 | .700 | 1st | - | 73-27 | -3 | .354 | 5.70 | .343 | X | | 212,335 | $0 | $0 | | 1945 | 62 | 38 | .620 | 2nd | 6.0 | 57-43 | 5 | .345 | 7.20 | .382 | X | | 126,039 | $0 | $0 | | 1946 | 58 | 42 | .580 | 2nd | 12.0 | 50-50 | 8 | .338 | 7.53 | .382 | X | | 132,912 | $0 | $0 | | 1947 | 53 | 47 | .530 | 3rd | 24.0 | 55-45 | -2 | .360 | 7.69 | .416 | | | 95,336 | $0 | $0 | | 1948 | 45 | 55 | .450 | 5th | 27.0 | 42-58 | 3 | .365 | 9.45 | .440 | | | 82,338 | $0 | $0 | | 1949 | 73 | 28 | .723 | 2nd | 1.0 | 67-34 | 6 | .390 | 6.61 | .394 | X | X | 216,878 | $0 | $0 | | 1950 | 36 | 64 | .360 | 5th | 40.0 | 40-60 | -4 | .330 | 8.79 | .409 | | | 81,442 | $0 | $0 | | 1951 | 36 | 64 | .360 | 5th | 46.0 | 34-66 | 2 | .327 | 9.62 | .419 | | | 83,438 | $0 | $0 | | 1952 | 52 | 48 | .520 | 3rd | 19.0 | 53-47 | -1 | .360 | 7.77 | .411 | | | 107,913 | $0 | $0 | | 1953 | 52 | 48 | .520 | 4th | 23.0 | 58-42 | -6 | .395 | 8.28 | .428 | | | 93,697 | $0 | $0 | | 1954 | 42 | 58 | .420 | 4th | 34.0 | 43-57 | -1 | .389 | 11.65 | .438 | | | 94,102 | $0 | $0 | | 1955 | 47 | 53 | .470 | 4th | 30.0 | 50-50 | -3 | .376 | 9.74 | .419 | | | 102,622 | $0 | $0 | | 1956 | 38 | 62 | .380 | 4th | 39.0 | 36-64 | 2 | .342 | 10.84 | .444 | | | 87,479 | $0 | $0 | | 1957 | 54 | 46 | .540 | 3rd | 30.0 | 53-47 | 1 | .371 | 9.12 | .410 | | | 91,041 | $0 | $0 | | 1958 | 4 | 5 | .444 | 4th | 4.0 | 4-5 | 0 | .388 | 13.84 | .464 | | | 18,901 | $0 | $0 | | Totals | 885 | 825 | .518 | | | 883-827 | 2 | .346 | 7.74 | .387 | 5 | 2 | 2,018,683 | | 0 | | |
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