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Blue Jays vs. Mariners odds, line, start time, picks, best bets for ALCS Game 4 matchup from proven model

SportsLine's projection model, which is on a 35-29 roll on top-rated MLB money-line picks, has locked in its MLB picks for the Toronto Blue Jays vs. Seattle Mariners matchup on Thursday at T-Mobile Park in Seattle

ByPublished: Oct 16, 2025 11:34PM UTC . 2 min read

The Toronto Blue Jays will look to draw even at 2-2 in their best-of-seven series when they take on the Seattle Mariners in Game 4 of the American League Championship Series on Thursday. After losing both games in Toronto, the Blue Jays kept the home team winless in the series with a 13-4 win on Wednesday. The Blue Jays (94-68), the top seed in the American League, are 42-42 on the road in 2025, including the postseason. The Mariners (90-72), the third seed, are 53-32 on their home field. Luis Castillo will start for the Seattle, opposed by Max Scherzer of Toronto.

First pitch from T-Mobile Park in Seattle is set for 8:33 p.m. ET. The teams have split the past eight meetings. Seattle is a -128 favorite on the money line (risk $128 to win $100) in the latest Blue Jays vs. Mariners odds from DraftKings Sportsbook, while Toronto is at +107 (risk $100 to win $107). The total number of runs Vegas thinks will be scored, or the over-under, is 7.5 in the latest MLB odds. 

Before you make any Blue Jays vs. Mariners picks or MLB predictions, you need to see what the SportsLine Projection Model has to say.

The SportsLine Projection Model simulates every MLB game 10,000 times. It enters the ALCS and NLCS rounds of the 2025 MLB playoffs a profitable 35-29 on top-rated MLB money-line picks. It has excelled making home run prop picks this season, returning nearly 30 units of profit. Anybody following could have seen strong returns!

The model has simulated Blue Jays vs. Mariners 10,000 times and the results are in. We can tell you the model is going Over on the run total, and it also says one side of the money line has all the value!

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Daniel Kohn

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