The Seattle Mariners are favored to win the American League West based on the latest MLB odds at the BetMGM online sportsbook.
The Mariners haven’t won the division since 2001. The Houston Astros have won the division in seven straight full seasons, not counting the COVID-shortened campaign in 2020 when the Athletics won the division.
Here’s a look at the latest MLB lines for the 2025 AL West winner:
AL West Odds 2025
List of AL West Division Winners
| Year | AL West Winner | Preseason Odds |
|---|---|---|
| 2024 | Astros | -110 |
| 2023 | Astros | -185 |
| 2022 | Astros | -165 |
| 2021 | Astros | +130 |
| 2020 | Athletics | +220 |
| 2019 | Astros | -900 |
| 2018 | Astros | -445 |
| 2017 | Astros | -105 |
| 2016 | Rangers | +290 |
| 2016 | Rangers | +1500 |
| 2014 | Angels | +200 |
| 2013 | Athletics | +550 |
| 2012 | Athletics | +3000 |
| 2011 | Rangers | +120 |
| 2010 | Rangers | +210 |
| 2009 | Angels | -200 |
| 2008 | Angels | -200 |
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