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

Odds updated as of 4:12 a.m.
On Wednesday in the MLB, the Seattle Mariners are up against the Toronto Blue Jays in Game 3 of the ALCS.
We've got you covered, in terms of the vital info about this game before you take a look at the MLB odds and spreads on FanDuel Sportsbook.
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 call on 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 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 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
- Seattle is the favorite, -138 on the moneyline, while Toronto is a +118 underdog on the road.
Mariners vs Blue Jays Spread
- The Mariners are 1.5-run home favorites on the runline against the Blue Jays. The Mariners are +150 to cover, and the Blue Jays are -182.
Mariners vs Blue Jays Over/Under
- Mariners versus Blue Jays, on Oct. 15, has an over/under of 7, with the over being -108 and the under -112.
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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 year Seattle has won 41 of 63 games when listed as at least -138 on the moneyline.
- The Mariners and their opponents have gone over the total this season in 87 of their 163 opportunities.
- The Mariners are 74-89-0 against the spread in their 163 games that had a posted line this season.
- The Blue Jays have won 43 of the 77 games they were listed as the moneyline underdog this season (55.8%).
- Toronto is 10-10 (winning 50% of its games) when playing as a moneyline underdog of +118 or longer.
- The Blue Jays have combined with opponents to hit the over on the total 90 times this season for a 90-70-6 record against the over/under.
- The Blue Jays have put together a 94-72-0 record ATS this season (covering 56.6% of the time).
Mariners Player Leaders
- Cal Raleigh has 147 hits and an OBP of .359, both of which rank first among Seattle hitters this season. He has a .247 batting average and a slugging percentage of .589.
- Among all qualified hitters in baseball, 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 qualifiers, he is 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 has collected 160 base hits, an OBP of .353 and a slugging percentage of .462 this season.
- Eugenio Suarez has 49 home runs, 118 RBI and a batting average of .228 this season.
- Suarez heads into this game on a two-game hitting streak. In his last five games he is hitting .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 qualified hitters in the majors.
- George Springer leads his team with 153 hits and a .397 on-base percentage. He has a batting average of .307 while slugging .556.
- He is fourth in batting average, second in on-base percentage and fifth in slugging percentage in the big leagues.
- Ernie Clement has 35 doubles, two triples, nine home runs and 27 walks while hitting .277.
- Alejandro Kirk is hitting .282 with 18 doubles, 15 home runs and 48 walks.
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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