The Houston Astros and Seattle Mariners met for the second game of a three-game series at Daikin Park on May 12, 2026, with the Mariners emphatically extending their extraordinary recent dominance over the Astros with a 10-2 rout that pushed their winning streak against Houston to nine consecutive games, a new franchise record. The Houston Astros vs Seattle Mariners rivalry had turned decisively in Seattle’s favour all season, and this performance was among the most lopsided in the series.
Final Score
| Team | R | H | E |
|---|---|---|---|
| Seattle Mariners | 10 | 11 | 0 |
| Houston Astros | 2 | 5 | 1 |
Scoring by Inning
| Team | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | R | H | E |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Seattle | 0 | 2 | 0 | 0 | 0 | 0 | 4 | 1 | 3 | 10 | 11 | 0 |
| Houston | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 5 | 1 |
Key Hitting Stats
| Player | Team | AB | R | H | HR | RBI | BB | AVG |
|---|---|---|---|---|---|---|---|---|
| Randy Arozarena | SEA | 4 | 2 | 4 | 1 | 3 | 0 | — |
| Dominic Canzone | SEA | — | — | — | 1 (Grand Slam) | 5 | — | — |
| Yordan Alvarez | HOU | — | 0 | 1 | 0 | 0 | — | — |
| Braden Shewmake | HOU | — | 0 | 1 | 0 | 1 | — | — |
| Jose Altuve | HOU | — | 0 | 1 | 0 | 0 | — | — |
Pitching Stats
| Pitcher | Team | IP | H | R | ER | K | BB | Decision |
|---|---|---|---|---|---|---|---|---|
| Bryan Woo | SEA | 5.0 | 5 | 2 | 2 | — | — | W (3-2) |
| Tatsuya Imai | HOU | 4.0 | 5 | 6 | 6 | 3 | 3 | L (1-1) |
Team Hitting Comparison
| Stat | Seattle Mariners | Houston Astros |
|---|---|---|
| Hits | 11 | 5 |
| Home Runs | 2 | 0 |
| Total Bases | 19 | 7 |
| Runners LOB | 8 | 6 |
| Attendance | 28,829 | — |
| Game Time | 2:54 | — |
Season Head-to-Head Record (2026)
| Metric | Detail |
|---|---|
| SEA vs HOU record (2026) | Mariners 7-1 as of May 14 |
| Winning streak | 9 consecutive Mariners wins (franchise record) |
| Imai ERA (2026) | 9.24 ERA in 4 starts |
| Imai contract | 3 years, $54 million |
| Arozarena HR (2026) | 4th of season (May 12 game) |
Tatsuya Imai’s return from a month-long absence with arm fatigue proved disastrous. Houston had invested $54 million over three years in the Japanese right-hander, and his struggles continued with a 9.24 ERA across four starts. Arozarena, by contrast, was the most complete offensive player on the field, going 4 for 4 with a home run and three RBI in a performance that tied his career high in hits and matched his season best in RBI. Canzone’s grand slam, his first career, provided the decisive statement moment.
The Astros finished May 12 at 16-27, one of the worst records in the American League, a startling fall from a franchise that won the World Series as recently as 2022. Seattle’s dominance in the series had become one of the defining storylines of the early 2026 season.