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Blue Jays vs Mariners Game 4 Preview: How to Watch, Start Time & Prediction for ALCS 2025

Updated :  Thursday, October 16, 2025 7:17 PM
Blue Jays vs Mariners

The 2025 American League Championship Series (ALCS) is heating up as the Seattle Mariners host the Toronto Blue Jays for Game 4 tonight, Thursday, October 16, at 8:33 PM ET at T-Mobile Park in Seattle. With the Mariners leading the series 2-1, a victory tonight would put them just one win away from their first-ever World Series appearance. Conversely, a Blue Jays win would level the series, setting the stage for a thrilling Game 5.

How to Watch Game 4

  • TV Broadcast:

    • FS1 (Fox Sports 1)

    • FOX Deportes (for Spanish-language coverage)

  • Streaming Options:

For viewers outside the U.S., using a VPN service like NordVPN can help access these streaming platforms, provided you have a U.S.-based payment method.

Game 4 Preview: Pitching Matchup

Seattle Mariners:

  • Starting Pitcher: Luis Castillo

    • Castillo has been a reliable ace for the Mariners, boasting a strong postseason track record. His ability to command the strike zone and generate strikeouts will be crucial as he faces a potent Blue Jays lineup.

Toronto Blue Jays:

  • Starting Pitcher: Max Scherzer

    • Scherzer, a seasoned postseason veteran, will look to rebound after a challenging outing in Game 1. His experience and competitive edge make him a formidable opponent on the mound.

Key Players to Watch

  • Seattle Mariners:

    • Cal Raleigh: The Mariners’ power-hitting catcher has been a consistent offensive threat, contributing significantly to the team’s success this postseason.

    • Julio Rodríguez: A dynamic outfielder known for his speed and power, Rodríguez can change the game with a single swing.

    • Josh Naylor: Providing stability in the middle of the lineup, Naylor’s ability to drive in runs has been instrumental.

  • Toronto Blue Jays:

    • Vladimir Guerrero Jr.: One of the game’s premier hitters, Guerrero’s bat is always a focal point in any lineup.

    • George Springer: A postseason veteran, Springer’s experience and leadership are invaluable to the Blue Jays.

    • Alejandro Kirk: As a catcher, Kirk’s ability to handle pitchers and contribute offensively adds depth to the Blue Jays’ roster.

Series Outlook

The Mariners enter Game 4 with momentum, having secured victories in the first two games at home. Their balanced offensive attack and solid pitching staff have been key factors in their success. However, the Blue Jays are no strangers to postseason pressure and will look to even the series with a strong performance tonight.

Prediction:

  • Final Score: Mariners 5, Blue Jays 4

  • Total Runs: Over 7.5

  • Win Probability: Mariners 52%, Blue Jays 48%

Fan Experience at T-Mobile Park

For fans attending the game at T-Mobile Park, the atmosphere is expected to be electric. The Mariners’ passionate fanbase will be out in full force, creating an environment that can influence the game’s outcome. Fans are encouraged to arrive early to enjoy pre-game festivities and support their team.

Final Thoughts

Game 4 of the ALCS is poised to be a pivotal moment in the 2025 MLB postseason. With both teams showcasing elite talent and determination, fans can expect a high-intensity matchup that could swing the series in either direction. Whether you’re watching from home or cheering from the stands, tonight’s game promises to deliver unforgettable baseball action.

Paul McCann

Paul McCann is a passionate sports writer with a keen eye for global and American athletics. With years of experience covering major leagues and international tournaments, he brings insightful analysis, engaging stories, and fresh perspectives to readers worldwide. Paul’s writing captures the excitement, strategy, and human spirit behind every game — from the NFL and NBA to global football and beyond.