Blue Jays vs Mariners Prediction, Odds, Moneyline, Spread & Over/Under for July 4

Odds updated as of 4:12 p.m.

MLB action on Saturday includes the Toronto Blue Jays taking on the Seattle Mariners.

Before checking out the MLB betting lines on FanDuel Sportsbook, we've got you covered, in terms of the most important information about this matchup.

Blue Jays vs Mariners Game Info

• Toronto Blue Jays (42-46) vs. Seattle Mariners (45-44)
• Date: Saturday, July 4, 2026
• Time: 4:10 p.m. ET
• Venue: T-Mobile Park -- Seattle, Washington
• Coverage: Mariners.TV and SNET

Blue Jays vs Mariners Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: TOR: (-134) | SEA: (+114)
• Spread: TOR: -1.5 (+132) | SEA: +1.5 (-160)
• Total: 7 -- Over: (-120) | Under: (-102)

Blue Jays vs Mariners Probable Starting Pitchers

Probable Pitchers: Shane Bieber (Blue Jays) - 0-0, 6.00 ERA vs Logan Gilbert (Mariners) - 6-5, 3.42 ERA

This contest's pitching matchup is set, as the Blue Jays will send Shane Bieber to the mound, while Logan Gilbert (6-5) will get the nod for the Mariners. Bieber has a record of 0-2-0 ATS in two starts with a spread this season. Bieber's team is 0-2 this season when he starts and they're favored on the moneyline. The Mariners have gone 7-10-0 ATS in Gilbert's 17 starts that had a set spread. The Mariners were the moneyline underdog for two Gilbert starts this season -- they lost both.

Blue Jays vs Mariners Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (63.4%)

Blue Jays vs Mariners Moneyline

• Looking at the moneyline for Blue Jays-Mariners, Toronto is the favorite at -134, and Seattle is +114 playing at home.

Blue Jays vs Mariners Spread

• The Blue Jays are favored by 1.5 runs on the road against the Mariners. The Blue Jays are +132 to cover the spread, while the Mariners are -160.

Blue Jays vs Mariners Over/Under

• A combined run total of 7 has been set for Blue Jays-Mariners on July 4, with the over at -120 and the under at -102.

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Blue Jays vs Mariners Betting Trends

• The Blue Jays have come away with 28 wins in the 50 contests they have been listed as the favorites in this season.
• This year Toronto has won 14 of 28 games when listed as at least -134 on the moneyline.
• The Blue Jays and their opponents have gone over the total this season in 45 of their 87 opportunities.
• The Blue Jays have an against the spread record of 42-45-0 in 87 games with a line this season.
• The Mariners are 2-7 in games they were listed as the moneyline underdog (winning 22.2% of those games).
• Seattle has not yet played a game with moneyline odds of +114 or longer.
• The Mariners have combined with opponents to hit the over on the total 41 times this season for a 41-44-3 record against the over/under.
• The Mariners have collected a 32-56-0 record against the spread this season (covering just 36.4% of the time).

Blue Jays Player Leaders

• Vladimir Guerrero Jr. leads Toronto in OBP (.349) this season, fueled by 82 hits. He has a .268 batting average and a slugging percentage of .350.
• Among all qualified hitters in the majors, he is 56th in batting average, 49th in on-base percentage, and 132nd in slugging.
• Guerrero has recorded a base hit in three straight games. During his last five outings he is hitting .150 with a double, two walks and an RBI.
• Ernie Clement has hit seven homers this season while driving in 29 runs. He's batting .295 this season and slugging .434 with an on-base percentage of .319.
• Among qualified hitters, his batting average ranks him 13th, his on-base percentage 100th, and his slugging percentage 70th.
• Kazuma Okamoto leads Toronto with 74 hits. He is batting .240 this season and 30 of his hits have gone for extra bases.
• Okamoto has picked up a hit in two games in a row. In his last five games he is batting .167 with a walk and an RBI.
• Daulton Varsho has been key for Toronto with 64 hits, an OBP of .323 plus a slugging percentage of .417.

Mariners Player Leaders

• Randy Arozarena has racked up 83 hits with a .370 on-base percentage, leading the Mariners in both categories. He's batting .280 and slugging .436.
• Including all qualified hitters, he is 33rd in batting average, while his on-base percentage is 24th and he is 68th in slugging.
• Josh Naylor has 11 doubles, eight home runs and 27 walks while hitting .251. He's slugging .359 with an on-base percentage of .314.
• Including all qualifying players, his batting average puts him 83rd, his on-base percentage ranks 109th, and he is 129th in slugging.
• Cole Young is batting .259 with 12 doubles, a triple, nine home runs and 23 walks.
• Dominic Canzone is batting .269 with 13 doubles, a triple, 13 home runs and 21 walks.

Blue Jays vs Mariners Head to Head

• 7/3/2026: 2-0 TOR (Favorite: Blue Jays, Spread: -1.5, Total: 7, Favorite Moneyline: -134, Underdog Moneyline: +114)
• 10/20/2025: 4-3 TOR (Favorite: Blue Jays, Spread: -1.5, Total: 7.5, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 10/19/2025: 6-2 TOR (Favorite: Blue Jays, Spread: -1.5, Total: 7.5, Favorite Moneyline: -122, Underdog Moneyline: +104)
• 10/17/2025: 6-2 SEA (Favorite: Blue Jays, Spread: -1.5, Total: 7, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 10/16/2025: 8-2 TOR (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -132, Underdog Moneyline: +112)
• 10/15/2025: 13-4 TOR (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 10/13/2025: 10-3 SEA (Favorite: Blue Jays, Spread: -1.5, Total: 7, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 10/12/2025: 3-1 SEA (Favorite: Blue Jays, Spread: -1.5, Total: 8.5, Favorite Moneyline: -162, Underdog Moneyline: +136)
• 5/11/2025: 9-1 TOR (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -184, Underdog Moneyline: +154)
• 5/10/2025: 6-3 TOR (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -138, Underdog Moneyline: +118)

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