Seattle Mariners vs Toronto Blue Jays Prediction, Odds and ALCS Game 7 Picks for Monday, 10/20/25

We’ve come to Game 7 in the ALCS. The Mariners looked to be cruising to a pennant after winning the first two games in Toronto, but since then, the Blue Jays have dominated 3 of the 4 games with their bats. We circle back to the Game 3 pitching matchup as George Kirby and Shane Bieber presumably take the hill, and the winner gets the Dodgers this weekend. The Blue Jays are hitting bombs, but the Mariners feel like a team of destiny, looking to make the franchise’s first World Series appearance. Will they fulfill destiny or crumble under the pressure? I am taking the Mariners all the way. It just needs to happen, and I think they find a way.

I am still trying to figure out how Game 3 went the way it did. Kirby is the ace of the Mariners staff, and there is no way he should have given up 8 runs. I am willing to hammer the bet that that won’t happen twice. As for Bieber, he had been struggling and his stuff did not look great, so of course he had the best start of his season in Game 3. Again, I am betting that doesn’t happen twice. Both teams will be quick to the bullpen at the first sign of trouble on Monday, knowing both that there is no tomorrow if they lose, and also that they have several days to rest up before the next series anyway. I am backing the Kirby bounce-back, the Bieber regression, and the fact that the Seattle bullpen is way better than the Toronto pen. Give me the Mariners to win this game.

Mariners vs Blue Jays prediction: Mariners ML (+105) available at time of publishing. Playable at that number.

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