Mariners vs Mets Prediction, Odds, Moneyline, Spread & Over/Under for Aug. 17

Odds updated as of 8:11 a.m.

The Seattle Mariners are among the MLB teams playing on Sunday, versus the New York Mets.

Before you do any MLB betting on this matchup at FanDuel Sportsbook, here's what you need to know.

Mariners vs Mets Game Info

• Seattle Mariners (68-56) vs. New York Mets (65-58)
• Date: Sunday, August 17, 2025
• Time: 7:10 p.m. ET
• Venue: Muncy Bank Ballpark at Historic Bowman Field -- Williamsport, Pennsylvania
• Coverage: ESPN

Mariners vs Mets Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-118) | NYM: (-100)
• Spread: SEA: -1.5 (+142) | NYM: +1.5 (-176)
• Total: 8 -- Over: (-115) | Under: (-105)

Mariners vs Mets Probable Starting Pitchers

Probable Pitchers: George Kirby (Mariners) - 8-5, 3.71 ERA vs Clay Holmes (Mets) - 9-6, 3.71 ERA

The Mariners will look to George Kirby (8-5) against the Mets and Clay Holmes (9-6). When Kirby starts, his team is 6-8-0 against the spread this season. Kirby's team is 8-4 this season when he starts and they are the moneyline favorite. The Mets have a 10-12-0 record against the spread in Holmes' starts. The Mets have been the underdog on the moneyline in five of Holmes' starts this season, and they went 2-3 in those games.

Mariners vs Mets Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mets win (51.7%)

Mariners vs Mets Moneyline

• Looking at the moneyline for Mariners-Mets, Seattle is the favorite at -118, and New York is -100 playing at home.

Mariners vs Mets Spread

• The Mariners are at the Mets and are favored by 1.5 runs (+142 to cover) on the runline. New York is -176 to cover.

Mariners vs Mets Over/Under

• A combined run total of 8 has been set for Mariners-Mets on Aug. 17, with the over at -115 and the under at -105.

Bet on Seattle Mariners vs. New York Mets on FanDuel today!

Mariners vs Mets Betting Trends

• The Mariners have won in 47, or 56.6%, of the 83 contests they have been named as odds-on favorites in this year.
• Seattle has a record of 42-30 in contests when bookmakers favor them by -118 or more on the moneyline.
• Contests with the Mariners have gone over the total set by sportsbooks in 62 of 120 chances this season.
• The Mariners have posted a record of 52-68-0 against the spread this season.
• The Mets have been the moneyline underdog 34 total times this season. They've finished 13-21 in those games.
• New York has gone 8-14 when it has played as a moneyline underdog with odds of -100 or longer (36.4%).
• The Mets have combined with opponents to go over the total 52 times this season for a 52-61-4 record against the over/under.
• The Mets have covered 47% of their games this season, going 55-62-0 ATS.

Mariners Player Leaders

• Cal Raleigh leads Seattle in OBP (.358) and total hits (113) this season. He's batting .250 batting average while slugging .595.
• Among all qualified hitters in the majors, his batting average ranks 100th, his on-base percentage ranks 28th, and he is third in slugging.
• Raleigh will look for his third straight game with a hit in this contest. In his last five games he is hitting .333 with two doubles, a home run, four walks and two RBIs.
• Josh Naylor is batting .289 with 22 doubles, a triple, 15 home runs and 42 walks, while slugging .455 with an on-base percentage of .355.
• He is 19th in batting average, 35th in on-base percentage and 56th in slugging among qualifying hitters.
• Julio Rodriguez leads Seattle in slugging percentage (.456) powered by 49 extra-base hits.
• Eugenio Suarez has been key for Seattle with 104 hits, an OBP of .305 plus a slugging percentage of .540.
• Suarez has hit safely in four games in a row. In his last five games he is hitting .222 with a double, a home run, a walk and two RBIs.

Mets Player Leaders

• Juan Soto has put up an on-base percentage of .383, a team-high for the Mets. He's batting .252 and slugging .498.
• He is 96th in batting average, eighth in on-base percentage and 22nd in slugging percentage among all qualifying hitters in the big leagues.
• Soto brings a nine-game hitting streak into this matchup. In his last 10 games he is batting .278 with five home runs, eight walks and eight RBIs.
• Pete Alonso paces his team with 124 hits. He has a batting average of .268 while slugging .522 with an on-base percentage of .352.
• Including all qualifying players, his batting average places him 51st, his on-base percentage is 42nd, and he is 13th in slugging.
• Francisco Lindor has a .451 slugging percentage, which leads the Mets.
• Brandon Nimmo is hitting .253 with 23 doubles, 20 home runs and 42 walks.

Mariners vs Mets Head to Head

• 8/16/2025: 3-1 NYM (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 8/15/2025: 11-9 SEA (Favorite: Mets, Spread: -1.5, Total: 8.5, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 8/11/2024: 12-1 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -126, Underdog Moneyline: +108)
• 8/10/2024: 4-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 8/9/2024: 6-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -134, Underdog Moneyline: +116)
• 9/3/2023: 6-3 NYM (Favorite: Mariners, Spread: -1.5, Total: 9, Favorite Moneyline: -158, Underdog Moneyline: +134)
• 9/2/2023: 8-7 SEA (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -162, Underdog Moneyline: +136)
• 9/1/2023: 2-1 NYM (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 5/15/2022: 8-7 SEA (Favorite: Mets, Spread: -1.5, Total: 7.5, Favorite Moneyline: -154, Underdog Moneyline: +130)
• 5/13/2022: 2-1 SEA (Favorite: Mets, Spread: -1.5, Total: 7, Favorite Moneyline: -245, Underdog Moneyline: +205)

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