The MLB Belt · rivalry
Houston Astros vs. Seattle Mariners
15Belt meetings
5Astros wins
10Mariners wins
7Title changes
Houston Astros and Seattle Mariners have met 15 times with the MLB belt on the line, from June 21, 2002 to May 7, 2023. The belt changed hands in 7 of those games. Seattle Mariners lead the belt series 10–5.
| Belt game | Date | Result | |
|---|---|---|---|
| 18,767 | Jun 21, 2002 | Seattle Mariners beat Houston Astros 8–0 | Title change |
| 18,768 | Jun 22, 2002 | Houston Astros beat Seattle Mariners 3–2 | Title change |
| 18,769 | Jun 23, 2002 | Seattle Mariners beat Houston Astros 10–5 | Title change |
| 20,654 | Jul 19, 2013 | Seattle Mariners beat Houston Astros 10–7 | Defense |
| 20,655 | Jul 20, 2013 | Seattle Mariners beat Houston Astros 4–2 | Defense |
| 20,656 | Jul 21, 2013 | Seattle Mariners beat Houston Astros 12–5 | Defense |
| 20,802 | Jun 30, 2014 | Seattle Mariners beat Houston Astros 10–4 | Title change |
| 20,803 | Jul 1, 2014 | Seattle Mariners beat Houston Astros 13–2 | Defense |
| 20,804 | Jul 2, 2014 | Seattle Mariners beat Houston Astros 5–2 | Defense |
| 21,580 | Apr 12, 2019 | Houston Astros beat Seattle Mariners 10–6 | Title change |
| 21,581 | Apr 13, 2019 | Houston Astros beat Seattle Mariners 3–1 | Defense |
| 21,582 | Apr 14, 2019 | Houston Astros beat Seattle Mariners 3–2 | Defense |
| 22,183 | May 5, 2023 | Houston Astros beat Seattle Mariners 6–4 | Title change |
| 22,184 | May 6, 2023 | Seattle Mariners beat Houston Astros 7–5 | Title change |
| 22,185 | May 7, 2023 | Seattle Mariners beat Houston Astros 3–1 | Defense |