| 1945 | 1 | Ottawa Rough Riders | 5 | 1 | 0 | .833 | 105 | 40 | | Lost Quarterfinal |
| 1946 | 3 | Ottawa Rough Riders | 6 | 4 | 2 | .583 | 175 | 128 | | |
| 1947 | 1 | Ottawa Rough Riders | 8 | 4 | 0 | .667 | 170 | 103 | | Lost Quarterfinal |
| 1948 | 1 | Ottawa Rough Riders | 10 | 2 | 0 | .833 | 264 | 130 | | Lost Grey Cup |
| 1949 | 1 | Ottawa Rough Riders | 11 | 1 | 0 | .917 | 261 | 170 | | Lost Quarterfinal |
| 1950 | 4 | Ottawa Rough Riders | 4 | 7 | 1 | .375 | 182 | 231 | | |
| 1951 | 1 | Ottawa Rough Riders | 7 | 5 | 0 | .583 | 218 | 197 | | Won Grey Cup |
| 1952 | 3 | Ottawa Rough Riders | 5 | 7 | 0 | .417 | 200 | 238 | | |
| 1953 | 3 | Ottawa Rough Riders | 7 | 7 | 0 | .500 | 266 | 238 | | |
| 1954 | 4 | Ottawa Rough Riders | 2 | 12 | 0 | .143 | 129 | 337 | | |
| 1955 | 4 | Ottawa Rough Riders | 3 | 9 | 0 | .250 | 174 | 337 | | |
| 1956 | 3 | Ottawa Rough Riders | 7 | 7 | 0 | .500 | 326 | 359 | | Lost Semifinal |
| 1957 | 2 | Ottawa Rough Riders | 8 | 6 | 0 | .571 | 326 | 237 | | Lost Semifinal |
| 1958 | 3 | Ottawa Rough Riders | 6 | 8 | 0 | .429 | 233 | 243 | | Lost Final |
| 1959 | 2 | Ottawa Rough Riders | 8 | 6 | 0 | .571 | 275 | 217 | | Lost Final |
| 1960 | 2 | Ottawa Rough Riders | 9 | 5 | 0 | .643 | 400 | 283 | | Won Grey Cup |
| 1961 | 2 | Ottawa Rough Riders | 8 | 6 | 0 | .571 | 359 | 285 | | Lost Conference Semifinal |
| 1962 | 2 | Ottawa Rough Riders | 6 | 7 | 1 | .464 | 339 | 302 | | Lost Conference Semifinal |
| 1963 | 2 | Ottawa Rough Riders | 9 | 5 | 0 | .643 | 326 | 284 | | Lost Conference Final |
| 1964 | 2 | Ottawa Rough Riders | 8 | 5 | 1 | .607 | 313 | 228 | | Lost Conference Final |
| 1965 | 2 | Ottawa Rough Riders | 7 | 7 | 0 | .500 | 300 | 234 | | Lost Conference Final |
| 1966 | 1 | Ottawa Rough Riders | 11 | 3 | 0 | .786 | 278 | 177 | | Lost Grey Cup |
| 1967 | 2 | Ottawa Rough Riders | 9 | 4 | 1 | .679 | 337 | 207 | | Lost Conference Final |
| 1968 | 1 | Ottawa Rough Riders | 9 | 3 | 2 | .714 | 416 | 271 | | Won Grey Cup |
| 1969 | 1 | Ottawa Rough Riders | 11 | 3 | 0 | .786 | 399 | 298 | | Won Grey Cup |
| 1970 | 4 | Ottawa Rough Riders | 4 | 10 | 0 | .286 | 255 | 279 | | |
| 1971 | 3 | Ottawa Rough Riders | 6 | 8 | 0 | .429 | 291 | 277 | | Lost Conference Semifinal |
| 1972 | 2 | Ottawa Rough Riders | 11 | 3 | 0 | .786 | 298 | 228 | | Lost Conference Final |
| 1973 | 1 | Ottawa Rough Riders | 9 | 5 | 0 | .643 | 275 | 234 | | Won Grey Cup |
| 1974 | 2 | Ottawa Rough Riders | 7 | 9 | 0 | .438 | 261 | 271 | | Lost Division Final |
| 1975 | 1 | Ottawa Rough Riders | 10 | 5 | 1 | .656 | 394 | 280 | | Lost Division Final |
| 1976 | 1 | Ottawa Rough Riders | 9 | 6 | 1 | .594 | 411 | 346 | | Won Grey Cup |
| 1977 | 2 | Ottawa Rough Riders | 8 | 8 | 0 | .500 | 368 | 344 | | Lost Division Final |
| 1978 | 1 | Ottawa Rough Riders | 11 | 5 | 0 | .688 | 395 | 261 | | Lost Division Final |
| 1979 | 2 | Ottawa Rough Riders | 8 | 6 | 2 | .563 | 349 | 315 | | Lost Division Final |
| 1980 | 3 | Ottawa Rough Riders | 7 | 9 | 0 | .438 | 377 | 598 | | Lost Division Semifinal |
| 1981 | 2 | Ottawa Rough Riders | 5 | 11 | 0 | .313 | 278 | 618 | | Lost Grey Cup |
| 1982 | 3 | Ottawa Rough Riders | 5 | 11 | 0 | .313 | 426 | 630 | | Lost Division Final |
| 1983 | 2 | Ottawa Rough Riders | 8 | 8 | 0 | .500 | 353 | 393 | | Lost Division Semifinal |
| 1984 | 4 | Ottawa Rough Riders | 4 | 12 | 0 | .250 | 306 | 446 | | |
| 1985 | 3 | Ottawa Rough Riders | 7 | 9 | 0 | .438 | 376 | 462 | | Lost Division Semifinal |
| 1986 | 4 | Ottawa Rough Riders | 3 | 14 | 1 | .194 | 384 | 424 | | |
| 1987 | 4 | Ottawa Rough Riders | 3 | 15 | 0 | .167 | 354 | 507 | | |
| 1988 | 4 | Ottawa Rough Riders | 2 | 16 | 0 | .111 | 272 | 402 | | |
| 1989 | 4 | Ottawa Rough Riders | 4 | 14 | 0 | .222 | 346 | 514 | | |
| 1990 | 3 | Ottawa Rough Riders | 7 | 11 | 0 | .389 | 540 | 602 | | Lost Division Semifinal |
| 1991 | 3 | Ottawa Rough Riders | 7 | 11 | 0 | .389 | 522 | 577 | | Lost Division Semifinal |
| 1992 | 3 | Ottawa Rough Riders | 9 | 9 | 0 | .500 | 484 | 439 | | Lost Division Semifinal |
| 1993 | 3 | Ottawa Rough Riders | 4 | 14 | 0 | .222 | 387 | 517 | | Lost Division Semifinal |
| 1994 | 4 | Ottawa Rough Riders | 4 | 14 | 0 | .222 | 348 | 685 | | Lost Division Semifinal |
| 1995 | 8 | Ottawa Rough Riders | 3 | 15 | 0 | .167 | 480 | 647 | | |
| 1996 | 4 | Ottawa Rough Riders | 3 | 15 | 0 | .167 | 353 | 524 | | |
| 2002 | 4 | Ottawa Renegades | 4 | 14 | 0 | .222 | 356 | 550 | | |
| 2003 | 3 | Ottawa Renegades | 7 | 11 | 0 | .389 | 467 | 581 | | |
| 2004 | 4 | Ottawa Renegades | 5 | 13 | 0 | .278 | 401 | 560 | | |
| 2005 | 3 | Ottawa Renegades | 7 | 11 | 0 | .389 | 458 | 578 | | |
| 2014 | 4 | Ottawa RedBlacks | 2 | 16 | 0 | .111 | 278 | 465 | | |
| 2015 | 1 | Ottawa RedBlacks | 12 | 6 | 0 | .667 | 464 | 455 | | Lost Grey Cup |
| 2016 | 1 | Ottawa RedBlacks | 8 | 9 | 1 | .472 | 486 | 498 | | Won Grey Cup |
| 2017 | 2 | Ottawa RedBlacks | 8 | 9 | 1 | .472 | 495 | 452 | | Lost Division Semifinal |
| 2018 | 1 | Ottawa RedBlacks | 11 | 7 | 0 | .611 | 464 | 420 | | Lost Grey Cup |
| 2019 | 4 | Ottawa RedBlacks | 3 | 15 | 0 | .167 | 312 | 564 | | |
| 2021 | 4 | Ottawa RedBlacks | 3 | 11 | 0 | .214 | 224 | 384 | | |
| 2022 | 4 | Ottawa RedBlacks | 4 | 14 | 0 | .222 | 380 | 475 | | |
| 2023 | 4 | Ottawa RedBlacks | 4 | 14 | 0 | .222 | 415 | 507 | | |
| 2024 | 3 | Ottawa RedBlacks | 9 | 8 | 1 | .528 | 443 | 488 | | Lost Division Semifinal |
| 2025 | 0 | Ottawa RedBlacks | 4 | 14 | 0 | .222 | 417 | 537 | | |