Houston Astros16 games
13-3his teams
His line: 14.0 IP, 14 K, 2.57 ERA
Last met Apr 13, 2026
BaseballMLBSeattle MarinersRelief pitcher
Matt Brash
Stats and careerInjury status: Out, lat - ESPN report of Nov 2
Matt Brash is a relief pitcher for the Seattle Mariners in MLB.
201 MLB games242 strikeouts
Updated
About Matt Brash
Born on May 12, 1998, in Kingston, Ontario, Canada, Matt Brash is a relief pitcher for the Seattle Mariners and wears number 47. Brash throws and bats right-handed, and he made his MLB debut on Apr 12, 2022, with the Mariners.
In the 2023 regular season, Brash pitched in 78 games for the Seattle Mariners with a 3.06 ERA and 107 strikeouts in 70.2 innings. Through the 2025 season, Brash had a 3.31 ERA and 227 strikeouts in 168.2 innings over 170 games.
Agatha Research DeskUpdated Oct 8, 2026Season by season201
201 appearances: 190 regular season, 11 postseason. Every MLB appearance of his career, newest season first.
| Season | Team | Games | Starts | IP | K | BB | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|
| 2026 | SEA | 20 | 0 | 16.2 | 15 | 6 | 0.54 | 0.84 |
| 2025 | SEA | 53 | 0 | 47.1 | 58 | 18 | 2.47 | 1.25 |
| 2025 postseason | 8 | 0 | 9.0 | 10 | 5 | 2.00 | 0.89 | |
| 2023 | SEA | 78 | 0 | 70.2 | 107 | 29 | 3.06 | 1.33 |
| 2022 | SEA | 39 | 5 | 50.2 | 62 | 33 | 4.44 | 1.56 |
| 2022 postseason | 3 | 0 | 3.1 | 4 | 0 | 0.00 | 0.00 | |
| Career | 190 | 5 | 185.1 | 242 | 86 | 3.06 | 1.33 | |
| Career postseason | 11 | 0 | 12.1 | 14 | 5 | 1.46 | 0.65 |
How he is doing now
2026 pitching0.54 ERA16.2 innings, 15 strikeouts, 0.84 WHIP
Mariners76-862026 regular season
Last game0.2 IP, 1 K, 0 ERJun 8 at Orioles
Injury status
Out lat (9d ago)
Career
4years2022 to 2026
- 2022MLB debutSeattle Mariners
- 2023Best season70.2 IP, 107 K, 3.06 ERA in 78 games
- Jun 8, 2026Latest game0.2 IP, 1 K, 0 ER at Orioles
Regular season
189 games
185.1 IP, 242 K, 3.06 ERA
Postseason
11 games
12.1 IP, 14 K, 1.46 ERA
MLB debut
2022 seasonSeattle Mariners
Latest game
Jun 8, 2026: 0.2 IP, 1 K, 0 ERMariners 6, Orioles 3
Most often against
The teams he has faced most, with his teams' record and his line against each.
Los Angeles Angels13 games
8-5his teams
His line: 12.2 IP, 20 K, 0.71 ERA
Last met Apr 5, 2026
Texas Rangers11 games
4-7his teams
His line: 9.2 IP, 10 K, 2.79 ERA
Last met Apr 18, 2026
Athletics10 games
8-2his teams
His line: 9.1 IP, 9 K, 0.96 ERA
Last met Apr 22, 2026
Detroit Tigers10 games
8-2his teams
His line: 9.2 IP, 13 K, 0.93 ERA
Last met Jun 6, 2026
Minnesota Twins9 games
8-1his teams
His line: 6.2 IP, 13 K, 1.35 ERA
Last met Apr 29, 2026
Injury history
ESPN's injury reports, newest first.
- Nov 2, 2026Out Lat
Brash has been shut down from throwing for eight weeks after an MRI revealed more inflammation in his lat, Ryan Divish of The Seattle Times reports.
ESPN / SEA
- Sep 8, 202660-Day-IL Lat
Brash is dealing with a right lat strain and has been placed on the 60-day injured list.
sdio / SEA
- Sep 4, 202660-Day-IL Lat
Brash has been shut down from throwing for eight weeks after an MRI revealed more inflammation in his lat, Ryan Divish of The Seattle Times reports.
ESPN / SEA
- Sep 1, 202660-Day-IL Lat
Brash is dealing with a right lat strain and has been placed on the 60-day injured list. He is expected to return in mid-September.
sdio / SEA
Show all 12 reports
- Sep 1, 202660-Day-IL Lat
Brash is dealing with a right lat strain and has been placed on the 60-day injured list. He is expected to return in early September.
sdio / SEA
- Aug 29, 202660-Day-IL Lat
Brash (lat) threw a bullpen session Saturday and is scheduled to throw another one in Boston early next week, Ryan Divish of The Seattle Times reports.
ESPN / SEA
- Aug 25, 202660-Day-IL Lat
Brash is dealing with a right lat strain and has been placed on the 60-day injured list. He is expected to return in early September.
sdio / SEA
- Aug 21, 202660-Day-IL Lat
Brash is dealing with a right lat strain and has been placed on the 60-day injured list. He is expected to return in late August.
sdio / SEA
- Aug 21, 202615-Day-IL Lat
Brash is dealing with a right lat strain and has been placed on the 15-day injured list. He is expected to return in late August.
sdio / SEA
- Aug 14, 202615-Day-IL Lat
Brash (lat) is scheduled to throw a bullpen session Saturday, Adam Jude of The Seattle Times reports.
ESPN / SEA
- Aug 9, 202615-Day-IL Lat
Mariners manager Dan Wilson said Saturday that Brash (lat) is "looming" closer to throwing a bullpen session, MLB.com reports.
ESPN / SEA
- Jun 16, 202615-Day-IL Lat
General manager Justin Hollander said Tuesday that Brash was diagnosed with a Grade 1 strain in his right lat, Shannon Drayer of SeattleSports.com reports.
ESPN / SEA
Sources and updates
Stats, scores and injury reports come from Agatha's own records: the SABR Lahman Baseball Database for the seasons through 2025, MLB's own box scores, its transactions and ESPN's injury reports.
Updated Nov 11, 2026, 7:24 AM ET. Results and form refresh after every game; biography facts are checked weekly.