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

Odds updated as of 5:13 a.m.

The Seattle Mariners will take on the Toronto Blue Jays in Game 3 of the ALCS on Wednesday.

All the info you need to make smart bets on this matchup at FanDuel Sportsbook can be found below. Check out all of the latest MLB betting lines here.

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: (-138) | TOR: (+118)
• Spread: SEA: -1.5 (+150) | TOR: +1.5 (-182)
• Total: 7 -- Over: (-108) | Under: (-112)

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 give the nod to George Kirby (10-8, 4.21 ERA) versus 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 won 52.6% of his starts when they are favored on the moneyline (10-9). The Blue Jays have a 4-4-0 record against the spread in Bieber's starts. The Blue Jays were the underdog on the moneyline 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

• The moneyline numbers for Mariners vs. Blue Jays reveal Seattle as the favorite (-138) and Toronto as the underdog (+118) on the road.

Mariners vs Blue Jays Spread

• The Blue Jays are +1.5 on the run line against the Mariners. The Blue Jays are -182 to cover, and the Mariners are +150.

Mariners vs Blue Jays Over/Under

• A combined run total of 7 has been set for Mariners-Blue Jays on Oct. 15, with the over at -108 and the under at -112.

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Mariners vs Blue Jays Betting Trends

• The Mariners have been victorious in 66, or 58.9%, of the 112 contests they have been chosen as favorites in this season.
• Seattle has a record of 41-22 when favored by -138 or more this year.
• The Mariners and their opponents have hit the over in 87 of their 163 games with a total set by oddsmakers this season.
• In 163 games with a line this season, the Mariners have a mark of 74-89-0 against the spread.
• The Blue Jays have won 43 of the 77 games they were listed as the moneyline underdog this season (55.8%).
• When playing as a moneyline underdog with odds of +118 or longer, Toronto has a 10-10 record (winning 50% of its games).
• In the 166 games bookmakers have set an over/under for the Blue Jays, they have combined with opponents to go over the total 90 times (90-70-6).
• The Blue Jays have a 94-72-0 record ATS this season (covering 56.6% of the time).

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.
• Among qualified batters in MLB, his batting average ranks 98th, his on-base percentage ranks 20th, and he is third in slugging.
• Julio Rodriguez leads Seattle in slugging percentage (.474) thanks to 67 extra-base hits. He's batting .267 with an on-base percentage of .324.
• Among all qualified, he ranks 44th in batting average, 88th in on-base percentage and 38th in slugging percentage.
• Rodriguez heads into this game looking to extend his two-game hit streak. 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.
• He is 12th in batting average, sixth in on-base percentage and 41st in slugging percentage among all qualifying batters in MLB.
• George Springer has racked up 153 hits with a .397 OBP to pace his team in both. He has a batting average of .307 while slugging .556.
• His batting average ranks fourth among all qualified players, his on-base percentage is second, and he is fifth in slugging.
• Ernie Clement has 35 doubles, two triples, nine home runs and 27 walks while hitting .277.
• 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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