Mariners vs Tigers Prediction, Odds, Moneyline, Spread & Over/Under for ALDS Game 1 on Oct. 4

Odds updated as of 8:12 p.m.

The Saturday schedule in the MLB includes a matchup between the Seattle Mariners and the Detroit Tigers in Game 1 of the ALDS.

Before checking out the MLB betting lines on FanDuel Sportsbook, we've got you covered, in terms of the most important info regarding this matchup.

Mariners vs Tigers Game Info

• Seattle Mariners (90-72) vs. Detroit Tigers (87-75)
• Date: Saturday, October 4, 2025
• Time: 8:38 p.m. ET
• Venue: T-Mobile Park -- Seattle, Washington
• Coverage: Fox Sports 1

Mariners vs Tigers Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-190) | DET: (+160)
• Spread: SEA: -1.5 (+116) | DET: +1.5 (-140)
• Total: 7 -- Over: (-106) | Under: (-114)

Mariners vs Tigers Probable Starting Pitchers

Probable Pitchers: George Kirby (Mariners) - 10-8, 4.21 ERA vs Troy Melton (Tigers) - 3-2, 2.76 ERA

The probable starters are George Kirby (10-8, 4.21 ERA) for the Mariners and Troy Melton (3-2, 2.76 ERA) for the Tigers. Kirby's team is 9-12-0 against the spread in his starts this season. Kirby's team has won 55.6% of his starts when they are favored on the moneyline (10-8). When Melton starts, the Tigers are 2-2-0 against the spread. The Tigers were named the moneyline underdog for one Melton start this season -- they won.

Mariners vs Tigers Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (60.7%)

Mariners vs Tigers Moneyline

• The Mariners vs Tigers moneyline has Seattle as a -190 favorite, while Detroit is a +160 underdog on the road.

Mariners vs Tigers Spread

• The Mariners are hosting the Tigers and are favored by 1.5 runs (+116 to cover) on the runline. Detroit is -140 to cover.

Mariners vs Tigers Over/Under

• An over/under of 7 has been set for Mariners-Tigers on Oct. 4, with the over being -106 and the under -114.

Bet on Seattle Mariners vs. Detroit Tigers on FanDuel today!

Mariners vs Tigers Betting Trends

• The Mariners have been favorites in 111 games this season and have come away with the win 66 times (59.5%) in those contests.
• Seattle has a record of 15-2 when favored by -190 or more this year.
• The Mariners' games have gone over the total in 85 of their 157 opportunities.
• The Mariners have an against the spread record of 70-87-0 in 157 games with a line this season.
• The Tigers have been the underdog on the moneyline 46 total times this season. They've gone 23-23 in those games.
• Detroit has played as a moneyline underdog of +160 or longer in only two games this season, which it lost both.
• In the 158 games bookmakers have set an over/under for the Tigers, they have combined with opponents to go over the total 79 times (79-72-7).
• The Tigers have a 72-86-0 record ATS this season (covering 45.6% of the time).

Mariners Player Leaders

• Cal Raleigh has 147 hits and an OBP of .359, both of which are tops among Seattle hitters this season. He has a .247 batting average and a slugging percentage of .589.
• Among all qualified hitters, he ranks 98th in batting average, his on-base percentage ranks 20th, and he is third in slugging.
• Julio Rodriguez has an OPS of .798, fueled by an OBP of .324 and a team-best slugging percentage of .474 this season. He's batting .267.
• He is 44th in batting average, 88th in on-base percentage and 38th in slugging in MLB.
• Josh Naylor has collected 160 base hits, an OBP of .353 and a slugging percentage of .462 this season.
• Naylor has picked up a hit in 12 games in a row. During his last 10 outings he is hitting .444 with four doubles, a home run, two walks and seven RBIs.
• Eugenio Suarez is batting .228 with a .298 OBP and 118 RBI for Seattle this season.

Tigers Player Leaders

• Gleyber Torres has accumulated a team-best .358 on-base percentage. He's batting .256 and slugging .387.
• Including all qualified players in the majors, he is 77th in batting average, 23rd in on-base percentage and 118th in slugging percentage.
• Riley Greene's 155 hits and .493 slugging percentage are both team-highs. He has a batting average of .258 with an on-base percentage of .313.
• His batting average ranks 69th among all qualified players, his on-base percentage is 104th, and he is 21st in slugging.
• Spencer Torkelson has 27 doubles, a triple, 31 home runs and 72 walks while hitting .240.
• Zach McKinstry has 23 doubles, 11 triples, 12 home runs and 46 walks while hitting .259.

Mariners vs Tigers Head to Head

• 7/13/2025: 8-4 SEA (Favorite: Tigers, Spread: -1.5, Total: 8, Favorite Moneyline: -108, Underdog Moneyline: -108)
• 7/11/2025: 12-3 SEA (Favorite: Tigers, Spread: -1.5, Total: 7, Favorite Moneyline: -290, Underdog Moneyline: +235)
• 4/2/2025: 3-2 SEA (Favorite: Tigers, Spread: -1.5, Total: 6.5, Favorite Moneyline: -124, Underdog Moneyline: +106)
• 4/1/2025: 4-1 DET (Favorite: Mariners, Spread: -1.5, Total: 6.5, Favorite Moneyline: -178, Underdog Moneyline: +150)
• 3/31/2025: 9-6 DET (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 8/15/2024: 2-1 DET (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -136, Underdog Moneyline: +116)
• 8/14/2024: 3-2 DET (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -144, Underdog Moneyline: +122)
• 8/13/2024: 15-1 DET (Favorite: Tigers, Spread: -1.5, Total: 6.5, Favorite Moneyline: -126, Underdog Moneyline: +108)
• 8/8/2024: 4-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -205, Underdog Moneyline: +172)
• 8/7/2024: 6-2 DET (Favorite: Mariners, Spread: -1.5, Total: 6, Favorite Moneyline: -142, Underdog Moneyline: +120)

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