Blue Jays vs Mariners Prediction, Odds, Moneyline, Spread & Over/Under for ALCS Game 7 on Oct. 20

Odds updated as of 5:11 a.m.

In MLB action on Monday, the Toronto Blue Jays play the Seattle Mariners for Game 7 of the ALCS.

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

Blue Jays vs Mariners Game Info

• Toronto Blue Jays (94-68) vs. Seattle Mariners (90-72)
• Date: Monday, October 20, 2025
• Time: 8:08 p.m. ET
• Venue: Rogers Centre -- Toronto, Ontario
• Coverage: FOX

Blue Jays vs Mariners Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: TOR: (-120) | SEA: (+102)
• Spread: TOR: -1.5 (+172) | SEA: +1.5 (-210)
• Total: 7.5 -- Over: (-106) | Under: (-114)

Blue Jays vs Mariners Probable Starting Pitchers

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

The Blue Jays will look to Shane Bieber (4-2, 3.57 ERA) against the Mariners and George Kirby (10-8, 4.21 ERA). Bieber's team is 5-4-0 against the spread this season in his starts. Bieber's team is 5-2 this season when he starts and they are the moneyline favorite. The Mariners have gone 10-14-0 against the spread when Kirby starts. The Mariners are 2-1 in Kirby's three starts this season that they were the underdog on the moneyline.

Blue Jays vs Mariners Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (52.6%)

Blue Jays vs Mariners Moneyline

• Seattle is a +102 underdog on the moneyline, while Toronto is a -120 favorite at home.

Blue Jays vs Mariners Spread

• The Mariners are at the Blue Jays, and are +1.5 on the runline. The Mariners are +172 to cover the spread, and the Blue Jays are -210.

Blue Jays vs Mariners Over/Under

• The over/under for Blue Jays-Mariners on Oct. 20 is 7.5. The over is -106, and the under is -114.

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Blue Jays vs Mariners Betting Trends

• The Blue Jays have been favorites in 88 games this season and have come away with the win 51 times (58%) in those contests.
• This year Toronto has won 47 of 77 games when listed as at least -120 on the moneyline.
• The Blue Jays' games have gone over the total in 94 of their 170 opportunities.
• The Blue Jays are 97-73-0 against the spread in their 170 games that had a posted line this season.
• The Mariners have been the moneyline underdog 46 total times this season. They've finished 23-23 in those games.
• Seattle is 18-15 (winning 54.5% of its games) when it has played as a moneyline underdog of +102 or longer.
• In the 167 games oddsmakers have set an over/under for the Mariners, they have combined with opponents to go over the total 91 times (91-71-5).
• The Mariners have covered 44.9% of their games this season, going 75-92-0 ATS.

Blue Jays Player Leaders

• Vladimir Guerrero Jr. is batting .292 with 34 doubles, 23 home runs and 81 walks. He has an on-base percentage of .381 and a slugging percentage of .467.
• Among qualifying hitters in the majors, his batting average ranks 12th, his on-base percentage ranks sixth, and he is 41st in slugging.
• Guerrero has recorded a base hit in four straight games. During his last five outings he is hitting .500 with three doubles, three home runs, four walks and three RBIs.
• George Springer has 153 hits and an OBP of .397, both of which lead the Blue Jays this season. He's batting .307 and slugging .556.
• Among qualifiers, he ranks fourth in batting average, second in on-base percentage and fifth in slugging percentage.
• Ernie Clement has 151 hits this season and has a slash line of .277/.313/.398.
• Clement heads into this game with five games in a row with at least one hit. During his last five outings he is hitting .381 with two doubles, a triple, a walk and two RBIs.
• Alejandro Kirk has been key for Toronto with 127 hits, an OBP of .348 plus a slugging percentage of .421.
• Kirk heads into this game on a two-game hitting streak. During his last five outings he is hitting .263 with a double, a home run, four walks and four RBIs.

Mariners Player Leaders

• Cal Raleigh has accumulated an on-base percentage of .359 and has 147 hits, both team-high numbers for the Mariners. He's batting .247 and slugging .589.
• Including all the qualifying hitters in the majors, his batting average places him 98th, his on-base percentage ranks 20th, and he is third in slugging.
• Julio Rodriguez's .474 slugging percentage leads his team. He has a batting average of .267 with an on-base percentage of .324.
• Including all qualifying players, his batting average places him 44th, his on-base percentage is 88th, and he is 38th in slugging.
• Josh Naylor has 29 doubles, a triple, 20 home runs and 48 walks while batting .295.
• Eugenio Suarez is batting .228 with 28 doubles, 49 home runs and 46 walks.

Blue Jays vs Mariners Head to Head

• 10/19/2025: 6-2 TOR (Favorite: Blue Jays, Spread: -1.5, Total: 7.5, Favorite Moneyline: -122, Underdog Moneyline: +104)
• 10/17/2025: 6-2 SEA (Favorite: Blue Jays, Spread: -1.5, Total: 7, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 10/16/2025: 8-2 TOR (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -132, Underdog Moneyline: +112)
• 10/15/2025: 13-4 TOR (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 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)

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