Blue Jays vs. Mariners Dunkel MLB Picks, Predictions and Prop Bets - July 3

The Seattle Mariners ride a three-game win streak into a contest versus the Toronto Blue Jays, at 10:10 p.m. ET on Friday. Dylan Cease (4-4, 3.02 ERA) will start for the Blue Jays, who are 41-46 this season and third in the AL East. Luis Castillo (3-6, 4.93 ERA) is the expected starter for the Mariners, who are 45-43 and second in the AL West.

Even though the Blue Jays are playing on the road at the Mariners, they are currently favored on the moneyline at -131, compared to the home team at +108. The total in this contest is set at 7.

Blue Jays vs. Mariners Odds, Game Time

• Game day: Friday, July 3, 2026
• Game time: 10:10 p.m. ET
• Location: Seattle, Washington
• Stadium: T-Mobile Park
• Favorite: Blue Jays (-131)
• Underdog: Mariners (+108)
• Over/under: 7

How to Watch Blue Jays vs. Mariners

• TV Channel: SEAM and SNET
• Live Stream: Fubo (Watch for free)

Bet now on FanDuel Sportsbook!

Blue Jays vs. Mariners: Betting the Moneyline

• The Blue Jays have put together a 26-23 record in games they were listed as the moneyline favorite (winning 53.1% of those games).
• Seattle has been victorious in three of the nine contests it has been chosen as underdogs in this season.
• Toronto is 14-15 this season when entering a game favored by -131 or more on the moneyline.
• Oddsmakers have given the Mariners the worst odds of winning they have seen this season with a +108 moneyline listed for this contest.
• Based on this contest's moneyline, the Blue Jays have an implied win probability of 56.7%.
• The Mariners have an implied victory probability of 48.1% according to the moneyline set for this matchup.

Blue Jays vs. Mariners: Betting the Spread & Total

• The Blue Jays have played in 87 games with set over/under, and have combined with opponents to go over the total 43 times (43-41-3).
• Seattle and its opponents have gone over the total this season in 42 of its 88 opportunities.
• The Blue Jays have collected a 42-45-0 record against the spread this season (covering 48.3% of the time).
• The Mariners are 34-54-0 against the spread in their 88 games with a line set by sportsbooks this season.