A surprising 2025 ALCS gets underway Sunday when the Toronto Blue Jays take on the Seattle Mariners as the 2025 MLB playoff field has narrowed to four. Seattle was a +2500 longshot to win the World Series in the spring, while Toronto was +6000, so both teams have defied the odds making it this far. Bryce Miller will get the start for Seattle, while Toronto counters with Kevin Gausman.

First pitch from Rogers Centre in Toronto is set for 8:03 p.m. ET. Toronto is a -163 favorite (risk $163 to win $100) on the money line in Game 1, while Seattle is the +136 underdog in the latest Blue Jays vs. Mariners odds. The over/under for total runs is 8.5. Before making any Mariners vs. Blue Jays picks, be sure to see the MLB predictions and betting advice from SportsLine's proven computer model .

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