Toronto Blue Jays vs Seattle Mariners Picks and Prediction for Friday July 3 2026
Use Code SSWC The Toronto Blue Jays travel to take on the Seattle Mariners on Friday, July 3, 2026, at T-Mobile Park in Seattle, Washington. First pitch is scheduled for 10:10 PM ET, and the game will be televised on MLB.TV. At the time of this writing the odds were not released. Be sure to check out our free MLB picks.
Starting Pitchers Square Off in Seattle
The Blue Jays are expected to start Dylan Cease, who enters Friday with a 4-4 record, a 3.02 ERA, and a 1.24 WHIP across 83.1 innings. Cease has allowed 63 hits while striking out an impressive 128 batters, walking 40, and surrendering five home runs. The Mariners are scheduled to counter with Luis Castillo, who is 3-6 with a 4.93 ERA and a 1.36 WHIP over 76.2 innings. Castillo has given up 78 hits, recorded 73 strikeouts, issued 26 walks, and allowed nine home runs.
Toronto Looks to Finish the Road Trip Strong
The Blue Jays enter this contest with a 41-46 overall record and a 17-21 mark away from home. Toronto has gone 2-3 over its last five games, recently defeating the Mets twice while recently losing to the Mets once and Texas twice. The Blue Jays have shown flashes of strong play but continue searching for consistency as they open this series.
Toronto is batting .248 as a team with 354 runs, 724 hits, and 88 home runs. The Blue Jays own a .310 on-base percentage and a .390 slugging percentage. Their pitching staff has posted a 4.08 ERA and a 1.31 WHIP while holding opponents to a .241 batting average. Toronto has also issued 311 walks, recorded 769 strikeouts, and owns an 18-20 record in day games.
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The biggest advantage for Toronto in this matchup is the starting pitching. The scheduled starter carries a significantly lower ERA than Seattle's starter while also leading this matchup in strikeouts. The Blue Jays also have a higher team batting average, giving them additional opportunities to generate offense.
Seattle Tries to Keep Rolling at Home
Seattle comes into Friday with a 44-43 overall record and a solid 24-19 home record. The Mariners have won three of their last five games, recently defeating the Angels twice and Cleveland once while recently losing to Cleveland twice. Seattle has been more effective on its home field and will look to continue that trend.
The Mariners are hitting .233 with 356 runs, 673 hits, and 105 home runs. Seattle has produced a .313 on-base percentage and a .384 slugging percentage. On the mound, the Mariners have recorded a 3.69 ERA and a 1.19 WHIP while allowing opponents to hit .241. Seattle has drawn 221 walks, struck out 758 batters, and is 17-15 in day games.
Seattle's biggest strength has been its pitching staff. The Mariners own the lower team ERA and WHIP while matching Toronto's opponent batting average. Their ability to limit baserunners has helped offset an offense that has produced fewer hits and a lower batting average than the Blue Jays.
Toronto Blue Jays vs Seattle Mariners Picks and Prediction
Toronto Blue Jays vs Seattle Mariners Pick
- Pick: Toronto Blue Jays Moneyline
I'm backing Toronto in this matchup. The Blue Jays have the edge in the starting pitching matchup, with their scheduled starter carrying a 3.02 ERA compared to 4.93 for Seattle's starter. Toronto also owns the higher team batting average and has collected more hits this season. While Seattle has been the stronger overall pitching team, I like Toronto's advantage on the mound in this particular game.
Toronto Blue Jays vs Seattle Mariners Total Pick
- Pick: Take the under if the total is set at 8.0.
I'm taking the under if the total is set at 8.0 runs. Seattle has posted a strong 3.69 team ERA and a 1.19 WHIP this season, while Toronto's scheduled starter has been effective with a 3.02 ERA. Although both teams have shown some power, I think the pitching matchup points toward a lower-scoring contest.
Final Score Prediction: Toronto Blue Jays 4 – Seattle Mariners 3
This prediction was written before the completion of game play on Thursday.
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