Mariners vs Giants Prediction, Odds, Moneyline, Spread & Over/Under for July 19

Odds updated as of 2:12 a.m.

MLB action on Sunday includes the Seattle Mariners playing the San Francisco Giants.

All the information you need to make smart bets on this game at FanDuel Sportsbook can be found below. Check out all of the latest MLB betting lines here.

Mariners vs Giants Game Info

• Seattle Mariners (49-50) vs. San Francisco Giants (42-56)
• Date: Sunday, July 19, 2026
• Time: 4:10 p.m. ET
• Venue: T-Mobile Park -- Seattle, Washington
• Coverage: Mariners.TV and NBCS-BA

Mariners vs Giants Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-158) | SF: (+134)
• Spread: SEA: -1.5 (+142) | SF: +1.5 (-172)
• Total: 7 -- Over: (-122) | Under: (+100)

Mariners vs Giants Probable Starting Pitchers

Probable Pitchers: Logan Gilbert (Mariners) - 7-6, 3.32 ERA vs Robbie Ray (Giants) - 8-6, 3.37 ERA

The Mariners will give the nod to Logan Gilbert (7-6, 3.32 ERA), who is eyeing win No. 8 on the season, and the Giants will turn to Robbie Ray (8-6, 3.37 ERA). Gilbert's team is 8-11-0 against the spread in his starts this season. Gilbert's team has been victorious in 68.8% of the games he's started as the moneyline favorite with a record of 11-5. The Giants have a 9-7-0 record against the spread in Ray's starts. The Giants have been the underdog on the moneyline in eight of Ray's starts this season, and they went 3-5 in those matchups.

Mariners vs Giants Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (59.8%)

Mariners vs Giants Moneyline

• Looking at the moneyline for Giants-Mariners, San Francisco is the underdog at +134, and Seattle is -158 playing at home.

Mariners vs Giants Spread

• The Giants are +1.5 on the run line against the Mariners. The Giants are -172 to cover, and the Mariners are +142.

Mariners vs Giants Over/Under

• An over/under of 7 has been set for Mariners-Giants on July 19, with the over being -122 and the under +100.

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Mariners vs Giants Betting Trends

• The Mariners have been favorites in 83 games this season and have come away with the win 44 times (53%) in those contests.
• This season Seattle has come away with a win 12 times in 18 chances when named as a favorite of at least -158 on the moneyline.
• The Mariners and their opponents have gone over the total this season in 46 of their 98 opportunities.
• In 98 games with a line this season, the Mariners have a mark of 35-63-0 against the spread.
• The Giants have won 22 of the 59 games they were the moneyline underdog this season (37.3%).
• San Francisco has an 8-4 record (winning 66.7% of its games) when playing as a moneyline underdog of +134 or longer.
• In the 95 games bookmakers have set an over/under for the Giants, they have combined with opponents to go over the total 44 times (44-43-8).
• The Giants have a 43-52-0 record against the spread this season.

Mariners Player Leaders

• Randy Arozarena leads Seattle with 93 hits and an OBP of .377, plus a team-best slugging percentage of .450. He's batting .281.
• Among all qualified hitters in baseball, he ranks 31st in batting average, 16th in on-base percentage, and 60th in slugging.
• Josh Naylor is hitting .251 with 12 doubles, eight home runs and 31 walks. He's slugging .351 with an on-base percentage of .316.
• His batting average is 80th among qualified players, his on-base percentage 99th, and his slugging percentage 129th.
• Julio Rodriguez is batting .256 with a .420 slugging percentage and 41 RBI this year.
• Cole Young has 12 home runs, 46 RBI and a batting average of .254 this season.

Giants Player Leaders

• Luis Arraez has racked up an on-base percentage of .367 and a slugging percentage of .454. Both lead the Giants. He's batting .327.
• Including all qualifying hitters in the majors, he ranks second in batting average, 29th in on-base percentage and 55th in slugging percentage.
• Casey Schmitt paces his team with 100 hits. He has a batting average of .279 while slugging .490 with an on-base percentage of .308.
• Including all qualifying hitters, his batting average places him 36th, his on-base percentage ranks 112th, and he is 26th in slugging.
• Jung Hoo Lee has 21 doubles, three triples, five home runs and 14 walks while hitting .304.
• Rafael Devers has 25 doubles, a triple, 20 home runs and 38 walks while hitting .245.

Mariners vs Giants Head to Head

• 7/18/2026: 4-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -158, Underdog Moneyline: +134)
• 7/17/2026: 7-0 SF (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -184, Underdog Moneyline: +154)
• 4/6/2025: 5-4 SF (Favorite: Giants, Spread: -1.5, Total: 7.5, Favorite Moneyline: -118, Underdog Moneyline: -100)
• 4/5/2025: 4-1 SF (Favorite: Giants, Spread: -1.5, Total: 7.5, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 4/4/2025: 10-9 SF (Favorite: Giants, Spread: -1.5, Total: 7.5, Favorite Moneyline: -148, Underdog Moneyline: +126)
• 8/25/2024: 4-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -142, Underdog Moneyline: +120)
• 8/24/2024: 4-3 SF (Favorite: Mariners, Spread: -1.5, Total: 6, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 8/23/2024: 6-5 SEA (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -148, Underdog Moneyline: +126)
• 7/5/2023: 2-0 SF (Favorite: Giants, Spread: -1.5, Total: 8.5, Favorite Moneyline: -174, Underdog Moneyline: +146)
• 7/4/2023: 6-0 SEA (Favorite: Giants, Spread: -1.5, Total: 8.5, Favorite Moneyline: -120, Underdog Moneyline: +102)

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