The Detroit Tigers and Seattle Mariners kick off their AL Division Series with Game 1 tonight at T-Mobile Park in Seattle.
The Mariners, having earned a first-round bye, enter the series well-rested. The Tigers, meanwhile, are battle-tested after taking down the Cleveland Guardians in the Wild Card Series — finally cracking Cleveland’s elite pitching staff with a 6–3 win on Thursday.
Detroit will need consistent offense to keep up with the Mariners, who led the majors with 139 runs in September, averaging 5.6 per game.
The Tigers send Troy Melton to the mound, likely as an opener. Melton began the season as a starter before shifting to the bullpen and finishing strong in an opener role, allowing just one run over 3.2 innings in his last outing against the Guardians.
Detroit is resting the front end of its rotation after the no-rest Wild Card round, with ace Tarik Skubal set to start Game 2. The rookie Melton went 3–2 with a 2.76 ERA in 16 regular-season games, including four starts.
Seattle hands the ball to George Kirby, who went 10–8 with a 4.21 ERA during the regular season. He struggled in his lone outing this year against Detroit, giving up four runs in five innings with three walks and a home run. Kirby, however, closed the regular season strong — allowing just two runs over five innings against the Los Angeles Dodgers in his final start.
The Mariners own the season series 4–2, having won the last four meetings — often by large margins, averaging seven runs per game in their last three matchups. That offensive firepower will be tough for the Tigers to match.
Prediction
With a pitchers’ duel unlikely, expect both sides to put up a lot of runs, but this is a game that will be fought on Seattle’s terms.
Prediction: Mariners 6, Tigers 4
Starting Lineups
Detroit Tigers
1. Gleyber Torres — 2B
2. Kerry Carpenter – RF
3. Riley Greene – LF
4. Spencer Torkelson – 1B
5. Colt Keith – DH
6. Dillon Dingler – C
7. Zach McKinstry – 3B
8. Javier Báez – SS
9. Parker Meadows – CF
Starting Pitcher: Troy Melton (RHP) — 3‑2, 2.76 ERA
Seattle Mariners
1. Randy Arozarena – LF
2. Cal Raleigh – C
3. Julio Rodríguez – CF
4. Josh Naylor – 1B
5. Jorge Polanco – 2B
6. Eugenio Suárez – 3B
7. Dominic Canzone – DH
8. Victor Robles – RF
9. J.P. Crawford – SS
Starting Pitcher: George Kirby (RHP) — 10‑8, 4.21 ERA
How to Watch Tigers vs. Mariners
First pitch for tonight’s Tigers–Mariners game is set for 8:38 PM Eastern / 5:38 PM Pacific at T-Mobile Park in Seattle.
The game airs live on FS1 and streams on the FOX Sports app and website.
If those options aren’t available, several services offer free trials that include FS1 and FOX Sports.
FuboTV, YouTube TV, Hulu + Live TV, DirecTV Stream, and FOX One all provide free trial periods that give you immediate access to the game.
YouTube TV even offers a 20-minute free preview, without having to register for a trial — if you just want to catch part of the game.
Detroit Tigers vs. Seattle Mariners
Date: Saturday, October 4, 2025
Time: 8:38 PM Eastern
Venue: T-Mobile Park, Seattle, WA
TV: FS1
Streaming: Fox Sports app and website
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