Blue Jays vs Mariners Prediction 10/20/25 MLB Picks Today

The Seattle Mariners and Toronto Blue Jays meet Monday in MLB Game 7 ALCS action at Rogers Centre. Here’s a Blue Jays vs Mariners Prediction. This article will include a Blue Jays vs Mariners Pick.

Seattle Mariners Betting Preview

The Seattle Mariners look to make the first World Series in franchise history. The Seattle Mariners are batting .212 on the season, have a .302 OBP, and a .387 slugging percentage. The Seattle Mariners pitching staff has a 4.29 ERA and a 1.25 WHIP. Josh Naylor leads the Seattle Mariners with 15 hits and 4 RBI, while Cal Raleigh and Jorge Polanco have combined for 22 hits and 15 RBI.

George Kirby gets the ball for the Seattle Mariners, and he is 10-8 with a 4.21 ERA and 137 strikeouts this season. Kirby is 0-1 with a 4.50 ERA and 24 strikeouts in his postseason career. Kirby is 0-1 with a 6.28 ERA and 15 strikeouts in his career against the Toronto Blue Jays.

Toronto Blue Jays Betting Preview

The Toronto Blue Jays look to make their first World Series appearance since the 1993 season. The Toronto Blue Jays are batting .294 on the season, have a .353 OBP, and a .532 slugging percentage. The Toronto Blue Jays pitching staff has a 4.50 ERA and a 1.32 WHIP. Vladimir Guerrero Jr. leads the Toronto Blue Jays with 18 hits and 12 RBI while Ernie Clement and Nathan Lukes have combined for 29 hits and 14 RBI.

Shane Bieber gets the ball for the Toronto Blue Jays, and he is 4-2 with a 3.57 ERA and 37 strikeouts this season. Bieber is 2-1 with a 4.73 ERA and 32 strikeouts in his postseason career. Bieber is 2-2 with a 2.30 ERA and 49 strikeouts in his career against the Seattle Mariners.

• Probable Starting Pitcher: Shane Bieber      Record this season (inc. playoffs): 5-2      ERA: 3.67
• Home Record: 2-1
• Last 5 against Mariners: 2-1

Why the Toronto Blue Jays will win

• The Blue Jays have won each of their last eight home games following a home win.
• The Mariners have lost each of their last five road games against AL East opponents following a loss.
• The Blue Jays have covered the run line in each of their last six home games following a home win.
• The Mariners have failed to cover the run line in each of their last five road games against AL East opponents following a loss.
• The Blue Jays have led after 5 innings in seven of their last eight home games.
• The Mariners have trailed after 3 innings in seven of their last eight night games against AL East opponents.

• Probable Starting Pitcher: George Kirby      Record this season (inc. playoffs): 10-9      ERA: 4.50
• Road Record: 5-4
• Last 5 against Blue Jays: 0-2

Why the Seattle Mariners will win

• The Mariners have won each of their last six games as underdogs against American League opponents following a loss.
• The Blue Jays have lost each of their last four games as favorites against AL West opponents following a win.
• The Mariners have covered the run line in each of their last six games as underdogs against American League opponents following a loss.
• The Blue Jays have failed to cover the run line in eight of their last nine games as favorites against AL West opponents following a win.
• The Blue Jays have trailed after 5 innings in seven of their last eight Monday games against AL West opponents that held a winning record.

Total Runs Facts

• Ten of the last 11 games between the Mariners and Blue Jays have gone OVER the total runs line.
• Eight of the Mariners’ last nine games against AL East opponents have gone OVER the total runs line.
• The ‘Inning 1 OVER 0.5 runs’ market has hit in seven of the Mariners’ last eight games as road underdogs.
• The ‘Inning 1 OVER 0.5 runs’ market has hit in five of the last six games between the Mariners and Blue Jays at Rogers Centre.

Toronto Blue Jays Player Prop Facts

• Vladimir Guerrero Jr. has hit a home run in each of the Blue Jays’ last three night games.
• Shane Bieber has recorded five or more strikeouts in 15 of his 16 previous appearances with his team as a favorite against AL West opponents.
• Bo Bichette has recorded at least one hit in each of his last 21 appearances with the Blue Jays as home favorites against AL opponents.
• Shane Bieber has recorded a win in four of his last five appearances against AL West opponents.
• Bo Bichette has recorded a Double in each of his last five appearances against AL opponents that held a winning record.
• George Springer ranks 2nd amongst qualified players for On Base Percentage (.399) this season.

Seattle Mariners Player Prop Facts

• Julio Rodriguez has hit a home run in three of the Mariners’ last five road games against AL East opponents.
• George Kirby has recorded four or more strikeouts in each of his last 18 appearances in night games against AL teams that held a winning record.
• Mitch Garver has recorded at least one hit in each of his last seven appearances with the Mariners as road underdogs against AL East opponents.
• George Kirby has recorded a win in three of his last four road appearances against AL opponents that held a winning record.
• Cal Raleigh ranks 1st in the league in Home Runs (60) this season.

Matchup/League Facts

• The Blue Jays rank 1st in the league for hits this season (1461).
• The Blue Jays rank 1st in the league for batting average this season (.265).
• The Mariners rank 29th in the league for doubles this season (234).
• The Mariners rank T29th in the league for triples this season (9).

Blue Jays vs Mariners Prediction

Kirby wasn’t great in the regular season, and he’s coming off a horrible outing against Toronto on Wednesday, where he allowed 8 hits and 8 runs in 4 innings. Overall, Kirby has allowed 45 hits and 25 earned runs in his last 37.1 innings. In 59.1 road innings, Kirby has a 5.16 ERA and .279 allowed batting average. I’m sure he’ll have a short leash, but Kirby isn’t the guy I’d want on the mound in an elimination game.

Bieber has been more respectable overall, and through 22 home innings, he has a 3.27 ERA and .267 allowed batting average. In his last 26 innings, Bieber has allowed 22 hits and 9 earned runs. In 131 at bats against current Mariners, Bieber is allowing a .221 batting average, .255 on base percentage, and has 52 strikeouts. There’s also the fact the Blue Jays have gotten out of their slump offensively, while the Mariners have underachieved for the most part. There’s a massive difference in offensive production between these clubs this postseason.

Give me the Blue Jays to make their first World Series appearance in more than three decades.