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| TEAM | SEASON | RECORD | PERC | CNF STAND | CNF REC | CNF PERC | FINISH |
| Portland | 1953-54 | 9-19 | .321 | Independent | |||
| Portland | 1954-55 | 9-13 | .409 | Independent | |||
| Portland | 1955-56 | 20-8 | .714 | Independent | |||
| Portland | 1956-57 | 18-12 | .600 | Independent | |||
| Portland | 1957-58 | 18-11 | .621 | Independent | |||
| Portland | 1958-59 | 19-8 | .704 | Independent | |||
| Portland | 1959-60 | 11-15 | .423 | Independent | |||
| Portland | 1960-61 | 16-9 | .640 | Independent | |||
| Portland | 1961-62 | 8-18 | .308 | Independent | |||
| Portland | 1962-63 | 8-18 | .308 | Independent | |||
| Portland | 1963-64 | 17-9 | .654 | Independent | |||
| Portland | 1964-65 | 12-13 | .480 | Independent | |||
| Portland | 1965-66 | 6-19 | .240 | Independent | |||
| Portland | 1966-67 | 10-16 | .385 | Independent | |||
| Portland | 1967-68 | 5-21 | .192 | Independent | |||
| Portland | 1968-69 | 3-23 | .115 | Independent | |||
| Portland | 1969-70 | 4-22 | .154 | Independent | |||
| Portland | 1970-71 | 5-21 | .192 | Independent | |||
| Portland | 1971-72 | 10-16 | .385 | Independent | |||
| Portland | 1972-73 | 9-19 | .321 | Independent | |||
| Portland | 1973-74 | 15-11 | .577 | Independent | |||
| Portland | 1974-75 | 13-16 | .448 | Independent | |||
| Portland | 1975-76 | 10-17 | .370 | Independent | |||
| Portland | 1976-77 | 11-15 | .423 | 5th West Coast | 6-8 | .429 | |
| Portland | 1977-78 | 19-8 | .704 | 3rd West Coast | 9-5 | .643 | |
| Portland | 1978-79 | 18-10 | .643 | 6th West Coast | 5-9 | .357 | |
| Portland | 1979-80 | 16-11 | .593 | T3rd West Coast | 9-7 | .562 | |
| Portland | 1980-81 | 15-9 | .625 | T4th West Coast | 7-7 | .500 | |
| Portland | 1981-82 | 14-9 | .609 | 3rd West Coast | 9-5 | .643 | |
| Portland | 1982-83 | 7-17 | .292 | 6th West Coast | 4-8 | .333 | |
| Portland | 1983-84 | 7-17 | .292 | 7th West Coast | 2-10 | .167 | |
| Portland | 1984-85 | 10-14 | .417 | T6th West Coast | 3-9 | .250 | |
| Portland | 1985-86 | 10-15 | .400 | 6th West Coast | 5-10 | .333 | |
| Portland | 1986-87 | 11-14 | .440 | T6th West Coast | 6-9 | .400 | |
| Portland | 1987-88 | 3-22 | .120 | 8th West Coast | 1-14 | .067 | |
| Portland | 1988-89 | 2-25 | .074 | T7th West Coast | 2-13 | .133 | |
| Portland | 1989-90 | 10-17 | .370 | 4th West Coast | 8-7 | .533 | |
| Portland | 1990-91 | 5-22 | .185 | 8th West Coast | 3-12 | .200 | |
| Portland | 1991-92 | 8-17 | .320 | 8th West Coast | 3-12 | .200 | |
| Portland | 1992-93 | 7-18 | .280 | 7th West Coast | 3-12 | .200 | |
| Portland | 1993-94 | 10-17 | .370 | T5th West Coast | 6-9 | .400 | |
| Portland | 1994-95 | 19-8 | .704 | 2nd West Coast | 12-5 | .706 | |
| Portland | 1995-96 | 19-11 | .633 | 5th West Coast | 7-7 | .500 | (14) L1st |
| Portland | 1996-97 | 9-18 | .333 | 6th West Coast | 4-10 | .286 | |
| Portland | 1997-98 | 14-13 | .519 | 5th West Coast | 7-7 | .500 | |
| Portland | 1998-99 | 9-18 | .333 | 8th West Coast | 3-11 | .214 | |
| Portland | 1999-00 | 10-18 | .357 | 6th West Coast | 4-10 | .286 | |
| Portland | 2000-01 | 11-17 | .393 | 7th West Coast | 4-10 | .286 | |
| Portland | 2001-02 | 6-24 | .200 | 8th West Coast | 2-12 | .143 | |
| Portland | 2002-03 | 11-17 | .393 | 7th West Coast | 4-10 | .286 | |
| Portland | 2003-04 | 11-17 | .393 | 7th West Coast | 5-9 | .357 | |
| Portland | 2004-05 | 15-15 | .500 | 7th West Coast | 4-10 | .286 | |
| Portland | 2005-06 | 11-18 | .379 | 7th West Coast | 5-9 | .357 | |
| Portland | 2006-07 | 9-23 | .281 | 7th West Coast | 4-10 | .286 | |
| Portland | 2007-08 | 9-22 | .290 | 7th West Coast | 3-11 | .214 | |
| Portland | 2008-09 | 19-13 | .594 | 3rd West Coast | 9-5 | .643 | CIT L1st |
| Portland | 2009-10 | 21-11 | .656 | 3rd West Coast | 10-4 | .714 | CIT L1st |
| Portland | 2010-11 | 20-12 | .625 | 5th West Coast | 7-7 | .500 | CIT L1st |
| Portland | 2011-12 | 7-24 | .226 | 8th West Coast | 3-13 | .188 | |
| Portland | 2012-13 | 11-21 | .344 | 8th West Coast | 4-12 | .250 | |
| Portland | 2013-14 | 15-16 | .484 | 7th West Coast | 7-11 | .389 | |
| Portland | 2014-15 | 17-16 | .515 | 6th West Coast | 7-11 | .389 | CIT L1st |
| Portland | 2015-16 | 12-20 | .375 | 7th West Coast | 6-12 | .333 | |
| Portland | 2016-17 | 11-22 | .333 | 10th West Coast | 2-16 | .111 | |
| Portland | 2017-18 | 10-22 | .312 | 9th West Coast | 4-14 | .222 | |
| Portland | 2018-19 | 7-25 | .219 | 10th West Coast | 0-16 | .000 | |
| Portland | 2019-20 | 9-23 | .281 | 10th West Coast | 1-15 | .062 | virus |