Toronto Blue Jays vs Seattle Mariners Picks and Prediction for Saturday July 4 2026

By: Eddie Kline Published 07/04/2026, 01:20 AM ET

Blue Jays Preview

T-Mobile Park will be the setting for a Fourth of July MLB battle between the Toronto Blue Jays and the Seattle Mariners. Be ready for the baseball season with all of our MLB predictions. The Blue Jays (42-46) are three games below .500 on the road and a distant 11 games out of first place in the AL East Division. Last night, SS Andres Gimenez had an RBI double and 1B Vladimir Guerrero added an RBI single to lead Toronto to a 2-0 road victory against Seattle.

Thirty-one year old righty Shane Bieber (0-0 6.00 ERA) will make his third start of the year for the Blue Jays. Through nine innings of work, Bieber has surrendered four long balls and must improve on a subpar 2.00 WHIP.

Mariners Preview

The Seattle Mariners have won 25 of their first 45 home games and are a half-game back of Texas for the top spot in the AL West Division. During Friday’s home loss, Seattle batters managed just four hits and were retired by strikes 12 times. SP Luis Castillo (3-7) gave up a pair of runs in six innings and was the hard luck loser for the Mariners, who fell to 45-44 overall.

Twenty-nine year old righty Logan Gilbert (6-5 3.42 ERA) is pitching well enough to make his second All-Star Game appearance for the Mariners. Through 100 innings, Gilbert has struck out 107 batters and ranks eighth in the majors with a 1.01 WHIP.

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Blue Jays vs Mariners Pick

Seattle OF Julio Rodriguez exited Thursday’s game due to concussion protocol and is listed as day-to-day. Through 88 games, Toronto ranks 23rd in OPS and 25th in runs scored. For the season, Seattle ranks 26th in OPS and 24th in runs scored. Take the under. Final Score Prediction, Seattle Mariners win 4-1.