AL West
MLB division in the American League. 5 current members.
Members over time
- Athletics since 1969
- Chicago White Sox 1969 to 1993
- Kansas City Royals 1969 to 1993
- Los Angeles Angels since 1969
- Minnesota Twins 1969 to 1993
- Seattle Pilots 1969
- Milwaukee Brewers 1970 to 1971
- Texas Rangers since 1972
- Seattle Mariners since 1977
- Houston Astros since 2013
Members
- Athletics Since 1901 Formerly Kansas City Athletics, Philadelphia Athletics
- Houston Astros Since 1962 Formerly Houston Colt .45s
- Los Angeles Angels Since 1961 Formerly Anaheim Angels, California Angels, Los Angeles Angels of Anaheim
- Seattle Mariners Since 1977
- Texas Rangers Since 1961 Formerly Washington Senators
All-time division records
| Team | Record | Win % | Seasons as a member |
|---|---|---|---|
| Athletics | 2011-1900 | 51.4% | Since 1969 |
| Los Angeles Angels | 1933-1974-2 | 49.5% | Since 1969 |
| Texas Rangers | 1771-1871-4 | 48.6% | Since 1972 |
| Seattle Mariners | 1518-1683-1 | 47.4% | Since 1977 |
| Kansas City Royals | 1058-975-1 | 52.0% | 1969 to 1993 |
| Minnesota Twins | 1037-1001-2 | 50.9% | 1969 to 1993 |
| Chicago White Sox | 1014-1013-5 | 50.0% | 1969 to 1993 |
| Houston Astros | 531-415 | 56.1% | Since 2013 |
| Milwaukee Brewers | 78-101 | 43.6% | 1970 to 1971 |
| Seattle Pilots | 36-54-1 | 40.1% | 1969 |
Games against fellow members only, counting both teams' division in the season each game was played. Current members are in bold.
Most played division rivalries
| Series | Record | As members |
|---|---|---|
| Los Angeles Angels vs Athletics | 505-553 | 914 |
| Los Angeles Angels vs Texas Rangers | 526-506 | 852 |
| Athletics vs Texas Rangers | 522-508 | 851 |
| Seattle Mariners vs Texas Rangers | 395-379 | 774 |
| Los Angeles Angels vs Seattle Mariners | 410-357 | 767 |
| Athletics vs Seattle Mariners | 396-365 | 761 |
| Chicago White Sox vs Los Angeles Angels | 388-399-1 | 370 |
| Kansas City Royals vs Minnesota Twins | 438-471 | 369 |
| Chicago White Sox vs Athletics | 1067-1014-5 | 365 |
| Kansas City Royals vs Athletics | 286-350 | 365 |
| Minnesota Twins vs Athletics | 1036-1032-24 | 364 |
| Chicago White Sox vs Minnesota Twins | 1201-1135-15 | 359 |
"As members" counts the meetings played while both teams were in the division; the record is every MLB meeting.
Against every other division
| Opponent | Record | Most played |
|---|---|---|
| AL Central | 3034-2722 | Athletics vs Minnesota Twins |
| AL East | 9165-9878-7 | Athletics vs Boston Red Sox |
| NL Central | 406-390 | Texas Rangers vs Houston Astros |
| NL East | 392-395 | Athletics vs New York Mets |
| NL West | 822-780 | Athletics vs San Francisco Giants |
Counts each game by both teams' division in the season it was played. "Series" is how many different pairs of teams met; "Most played" is the pair that met most often while in these two divisions, with how many of those meetings count here; its bar is the whole series.