1 league title: 2002.
Franchise history
Regular-season record. Division finish uses that season's division alignment.
| 2026 | 62 | 100 | 0 | .383 | 5th AL West | — |
| 2025 | 72 | 90 | 0 | .444 | 5th AL West | — |
| 2024 | 63 | 99 | 0 | .389 | 5th AL West | — |
| 2023 | 73 | 89 | 0 | .451 | 4th AL West | — |
| 2022 | 73 | 89 | 0 | .451 | 3rd AL West | — |
| 2021 | 77 | 85 | 0 | .475 | 4th AL West | — |
| 2020 | 26 | 34 | 0 | .433 | 4th AL West | — |
| 2019 | 72 | 90 | 0 | .444 | 4th AL West | — |
| 2018 | 80 | 82 | 0 | .494 | 4th AL West | — |
| 2017 | 80 | 82 | 0 | .494 | 2nd AL West | — |
| 2016 | 74 | 88 | 0 | .457 | 4th AL West | — |
| 2015 | 85 | 77 | 0 | .525 | 3rd AL West | — |
| 2014 | 98 | 64 | 0 | .605 | 1st AL West | Playoffs0-3 |
| 2013 | 78 | 84 | 0 | .481 | 3rd AL West | — |
| 2012 | 89 | 73 | 0 | .549 | 3rd AL West | — |
| 2011 | 86 | 76 | 0 | .531 | 2nd AL West | — |
| 2010 | 80 | 82 | 0 | .494 | 3rd AL West | — |
| 2009 | 97 | 65 | 0 | .599 | 1st AL West | Playoffs5-4 |
| 2008 | 100 | 62 | 0 | .617 | 1st AL West | Playoffs1-3 |
| 2007 | 94 | 68 | 0 | .580 | 1st AL West | Playoffs0-3 |
| 2006 | 89 | 73 | 0 | .549 | 2nd AL West | — |
| 2005 | 95 | 67 | 0 | .586 | 1st AL West | Playoffs4-6 |
| 2004 | 92 | 70 | 0 | .568 | 1st AL West | Playoffs0-3 |
| 2003 | 77 | 85 | 0 | .475 | 3rd AL West | — |
| 2002 | 99 | 63 | 0 | .611 | 2nd AL West | Champions11-5 |
| 2001 | 75 | 87 | 0 | .463 | 3rd AL West | — |
| 2000 | 82 | 80 | 0 | .506 | 3rd AL West | — |
| 1999 | 70 | 92 | 0 | .432 | 4th AL West | — |
| 1998 | 85 | 77 | 0 | .525 | 2nd AL West | — |
| 1997 | 84 | 78 | 0 | .519 | 2nd AL West | — |
| 1996 | 70 | 91 | 0 | .435 | 4th AL West | — |
| 1995 | 78 | 67 | 0 | .538 | 2nd AL West | — |
| 1994 | 47 | 68 | 0 | .409 | 4th AL West | — |
| 1993 | 71 | 91 | 0 | .438 | 5th AL West | — |
| 1992 | 72 | 90 | 0 | .444 | 6th AL West | — |
| 1991 | 81 | 81 | 0 | .500 | 7th AL West | — |
| 1990 | 80 | 82 | 0 | .494 | 4th AL West | — |
| 1989 | 91 | 71 | 0 | .562 | 3rd AL West | — |
| 1988 | 75 | 87 | 0 | .463 | 4th AL West | — |
| 1987 | 75 | 87 | 0 | .463 | 6th AL West | — |
| 1986 | 92 | 70 | 0 | .568 | 1st AL West | Playoffs3-4 |
| 1985 | 90 | 72 | 0 | .556 | 2nd AL West | — |
| 1984 | 81 | 81 | 0 | .500 | 2nd AL West | — |
| 1983 | 70 | 92 | 0 | .432 | 5th AL West | — |
| 1982 | 93 | 69 | 0 | .574 | 1st AL West | Playoffs2-3 |
| 1981 | 51 | 59 | 0 | .464 | 5th AL West | — |
| 1980 | 65 | 95 | 0 | .406 | 6th AL West | — |
| 1979 | 88 | 74 | 0 | .543 | 1st AL West | Playoffs1-3 |
| 1978 | 87 | 75 | 0 | .537 | 2nd AL West | — |
| 1977 | 74 | 88 | 0 | .457 | 5th AL West | — |
| 1976 | 76 | 86 | 0 | .469 | 4th AL West | — |
| 1975 | 72 | 89 | 0 | .447 | 6th AL West | — |
| 1974 | 68 | 94 | 1 | .420 | 6th AL West | — |
| 1973 | 79 | 83 | 0 | .488 | 4th AL West | — |
| 1972 | 75 | 80 | 0 | .484 | 5th AL West | — |
| 1971 | 76 | 86 | 0 | .469 | 4th AL West | — |
| 1970 | 86 | 76 | 0 | .531 | 3rd AL West | — |
| 1969 | 71 | 91 | 1 | .439 | 3rd AL West | — |
