Toronto Blue Jays vs. Seattle Mariners Game 4 Expert Prop Bet Picks
The Toronto Blue Jays have life in the ALCS against the Seattle Mariners after a blowout victory on Wednesday night.
These teams will meet again on Thursday evening as the Mariners will look to take a commanding 3-1 lead and the Blue Jays will look to even the series.
Let’s take a look at some popular betting trends for player props going into this pivotal Game 4 using Deadspin Picks + – a new tool for seamlessly measuring betting trends, markets, and +EV picks.
You can sign up for Deadspin Picks + here with a seven-day free trial to shop the best odds and get real data on trends like these:
Toronto Blue Jays OVER 4.5 runs (+158 FanDuel Sportsbook)
Before we dive into player props for this matchup, there’s no denying how hot Toronto’s bats are coming into this game.
The Blue Jays scored 13 runs during Wednesday night’s victory, proving that they discovered something again. While Game 3 was the first time that Toronto scored five runs or more during the ALCS, they’ve been raking all October.
Toronto scored at least five runs in all four victories against the New York Yankees in the ALDS.
Toronto Blue Jays vs. Seattle Mariners OVER 8.5 total runs (+134 FanDuel Sportsbook)
If the Blue Jays are going to score at least five runs, this bet is already halfway to cashing.
We’ll lean more into offensive player props in Game 4, suggesting another high-scoring affair after Wednesday night’s blowout. While the MLB Playoffs are a different animal, the Blue Jays and Mariners have surpassed this run total in 55 percent of their last 20 meetings.

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Eugenio Suarez OVER 0.5 Singles (+180 betMGM)
Suarez comes into Game 4 on a three-game streak of hitting singles.
The Blue Jays are starting Max Scherzer for his first appearance this postseason. He hasn’t pitched since September 24 against the Boston Red Sox, when he allowed 10 hits and four runs in a 7-1 defeat.
Seattle’s lineup has not exactly dominated October, but Suarez has singled in 80 percent of his last five games and 40 percent of his last 20 games.
Jorge Polanco OVER 0.5 Singles (+139 DraftKings)
Sticking with singles, Polanco comes into this matchup on a four-game streak of cashing this prop.
For the Mariners, Luis Castillo has not started since the Game 2 victory over the Detroit Tigers in the ALDS on October 5. He pitched in relief in the Game 5 “all hands on deck” victory against the Tigers, so take note of how that affects his rhythm tonight.

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100% up to $100
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100% up to $500
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$65 value with just a $10+ deposit
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