Toronto Blue Jays at Seattle Mariners Picks and Predictions for Friday, October 17, 2025
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The Toronto Blue Jays visit T-Mobile Park on Friday to face the Seattle Mariners in Game 5 of the American League Championship Series. Toronto evened the series at 2–2 with a 3–1 win on Thursday night behind a strong pitching effort. Game 5 begins at 6:08 PM ET on FS1. Throw a no-hitter and win with our Free MLB Picks.
Toronto Blue Jays Preview
Toronto’s lineup has bounced back after a slow start to the series. Vladimir Guerrero Jr. leads all hitters this postseason with a .455 average, five home runs, and 11 RBI. The Toronto slugger has been at the center of a Blue Jays offense that has scored 24 runs in the past three games. Ernie Clement (.452) and Daulton Varsho (.281) continue to deliver timely hits, while Toronto’s pitching has improved, giving up just six runs in the last two games after allowing 13 in the first two.
Kevin Gausman takes the mound with a 2.38 ERA and 0.88 WHIP across two playoff starts. The right-hander has allowed only seven hits in 11.1 innings and has kept the ball in the strike zone, walking just three. Toronto’s bullpen, which has held opponents to a .241 average in October, is rested after back-to-back effective outings. The combination of Gausman’s control and a talented bullpen gives Toronto a slight advantage entering Game 5.
Seattle Mariners Preview
Seattle has dropped both games at home after winning the first two in Toronto. The Mariners are hitting .215 as a team this postseason and have struggled to score in bunches. Cal Raleigh has been their most reliable hitter with a .314 average and three home runs, while Jorge Polanco has added eight RBI. Julio Rodríguez needs to get on base more often at the top of the order for the middle of the lineup to drive him in.
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Bryce Miller starts for Seattle with a 2.61 ERA and 0.87 WHIP through two postseason appearances. The right-hander allowed just one home run and has made hitters swing and miss, but the bullpen behind him has been less reliable, allowing runs in three of the past four games. Seattle will need Miller to pitch deep to avoid overusing the pen again.
Toronto Blue Jays at Seattle Mariners Prediction
Both pitchers have been sharp, but Toronto’s offense has adjusted better as the series has progressed. Gausman’s control and Guerrero Jr.’s hot bat give the Blue Jays a slight advantage, while Seattle’s lineup remains inconsistent against right-handers. Final Score Prediction: Toronto Blue Jays win 4-2.
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Best Picks
- Toronto Blue Jays -115
- Under 7.5
- Vladimir Guerrero Jr. to record an RBI
