Mariners vs Blue Jays Prediction, Odds, Moneyline, Spread & Over/Under for ALCS Game 3 on Oct. 15

Odds updated as of 7:11 p.m.

The Seattle Mariners versus the Toronto Blue Jays in Game 3 of the ALCS is on the MLB schedule for Wednesday.

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

Mariners vs Blue Jays Game Info

• Seattle Mariners (90-72) vs. Toronto Blue Jays (94-68)
• Date: Wednesday, October 15, 2025
• Time: 8:08 p.m. ET
• Venue: T-Mobile Park -- Seattle, Washington
• Coverage: Fox Sports 1

Mariners vs Blue Jays Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-126) | TOR: (+108)
• Spread: SEA: -1.5 (+168) | TOR: +1.5 (-205)
• Total: 7 -- Over: (-114) | Under: (-106)

Mariners vs Blue Jays Probable Starting Pitchers

Probable Pitchers: George Kirby (Mariners) - 10-8, 4.21 ERA vs Shane Bieber (Blue Jays) - 4-2, 3.57 ERA

The Mariners will look to George Kirby (10-8, 4.21 ERA) against the Blue Jays and Shane Bieber (4-2, 3.57 ERA). Kirby and his team have a record of 10-13-0 against the spread when he starts. Kirby's team has been victorious in 52.6% of the games he's started as the moneyline favorite with a record of 10-9. The Blue Jays have a 4-4-0 ATS record in Bieber's eight starts with a set spread. The Blue Jays were named the moneyline underdog for one Bieber start this season -- they lost.

Mariners vs Blue Jays Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (55.8%)

Mariners vs Blue Jays Moneyline

• Looking at the moneyline for Mariners-Blue Jays, Seattle is the favorite at -126, and Toronto is +108 playing on the road.

Mariners vs Blue Jays Spread

• The Blue Jays are +1.5 on the spread (-205 to cover), and Seattle is +168 to cover the runline.

Mariners vs Blue Jays Over/Under

• Mariners versus Blue Jays, on Oct. 15, has an over/under of 7, with the over being -114 and the under -106.

Bet on Seattle Mariners vs. Toronto Blue Jays on FanDuel today!

Mariners vs Blue Jays Betting Trends

• The Mariners have been chosen as favorites in 112 games this year and have walked away with the win 66 times (58.9%) in those games.
• This season Seattle has been victorious 54 times in 85 chances when named as a favorite of at least -126 on the moneyline.
• The Mariners and their opponents have gone over in 87 of their 163 games with a total set by sportsbooks this season.
• The Mariners have an against the spread mark of 74-89-0 in 163 games with a line this season.
• The Blue Jays are 43-34 in games they were the underdog on the moneyline (winning 55.8% of those games).
• When it has played as a moneyline underdog with odds of +108 or longer, Toronto has a 23-19 record (winning 54.8% of its games).
• The Blue Jays have played in 166 games with an over/under set, and have combined with opponents to go over the total 90 times (90-70-6).
• The Blue Jays are 94-72-0 against the spread this season.

Mariners Player Leaders

• Cal Raleigh leads Seattle in OBP (.359) and total hits (147) this season. He's batting .247 batting average while slugging .589.
• He is 98th in batting average, 20th in on-base percentage, and third in slugging among qualifying batters in the majors.
• 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.
• Among qualifying hitters, his batting average places him 44th, his on-base percentage 88th, and his slugging percentage 38th.
• Rodriguez has picked up a hit in two straight games. In his last five games he is hitting .100 with a home run, five walks and three RBIs.
• Josh Naylor is batting .295 with a .462 slugging percentage and 92 RBI this year.
• Eugenio Suarez has 49 home runs, 118 RBI and a batting average of .228 this season.
• Suarez brings a two-game hitting streak into this game. During his last five outings he is batting .190 with a double, a home run, two walks and an RBI.

Blue Jays Player Leaders

• Vladimir Guerrero Jr. is hitting .292 with 34 doubles, 23 home runs and 81 walks. He's slugging .467 with an on-base percentage of .381.
• Including all the qualifying players in the big leagues, his batting average places him 12th, his on-base percentage is sixth, and he is 41st in slugging.
• George Springer paces his team with 153 hits and a .397 on-base percentage. He has a batting average of .307 while slugging .556.
• He is currently fourth in batting average, second in on-base percentage and fifth in slugging percentage among all qualified hitters.
• Ernie Clement is hitting .277 with 35 doubles, two triples, nine home runs and 27 walks.
• Alejandro Kirk has 18 doubles, 15 home runs and 48 walks while hitting .282.

Mariners vs Blue Jays Head to Head

• 10/13/2025: 10-3 SEA (Favorite: Blue Jays, Spread: -1.5, Total: 7, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 10/12/2025: 3-1 SEA (Favorite: Blue Jays, Spread: -1.5, Total: 8.5, Favorite Moneyline: -162, Underdog Moneyline: +136)
• 5/11/2025: 9-1 TOR (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -184, Underdog Moneyline: +154)
• 5/10/2025: 6-3 TOR (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -138, Underdog Moneyline: +118)
• 5/9/2025: 6-3 TOR (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -152, Underdog Moneyline: +128)
• 4/20/2025: 8-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 4/19/2025: 8-4 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 4/18/2025: 3-1 TOR (Favorite: Blue Jays, Spread: -1.5, Total: 8, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 7/7/2024: 5-4 TOR (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -148, Underdog Moneyline: +126)
• 7/6/2024: 5-4 TOR (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -108, Underdog Moneyline: -108)

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