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

Odds updated as of 6:11 a.m.

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

Here's everything you need to know before checking out today's MLB odds and spreads on FanDuel Sportsbook.

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: (-120) | NYM: (+102)
• Spread: SEA: -1.5 (+138) | NYM: +1.5 (-166)
• Total: 8.5 -- Over: (-100) | Under: (-122)

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 give the ball to George Kirby (8-5, 3.71 ERA), who is eyeing win No. 9 on the season, and the Mets will turn to Clay Holmes (9-6, 3.71 ERA). Kirby's team is 6-8-0 against the spread this season in his starts. When Kirby starts a game and his team is the favorite on the moneyline, they have a record of 8-4. The Mets are 10-12-0 against the spread when Holmes starts. The Mets have a 2-3 record in Holmes' five starts this season when they were the underdog on the moneyline.

Mariners vs Mets Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mets win (51.3%)

Mariners vs Mets Moneyline

• New York is a +102 underdog on the moneyline, while Seattle is a -120 favorite on the road.

Mariners vs Mets Spread

• The Mariners are at the Mets and are favored by 1.5 runs (+138 to cover) on the runline. New York is -166 to cover.

Mariners vs Mets Over/Under

• The over/under for Mariners-Mets on Aug. 17 is 8.5. The over is -100, and the under is -122.

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

Mariners vs Mets Betting Trends

• The Mariners have been victorious in 47, or 56.6%, of the 83 contests they have been chosen as favorites in this season.
• Seattle has a record of 42-30 in contests when sportsbooks favor them by -120 or more on the moneyline.
• Contests with the Mariners have gone over the total set by bookmakers in 62 of 120 chances this season.
• The Mariners are 52-68-0 against the spread in their 120 games with a line set by sportsbooks this season.
• The Mets have won 13 of the 34 games they were the underdog on the moneyline this season (38.2%).
• In games it has played as a moneyline underdog with odds of +102 or longer, New York has an 8-14 record (winning only 36.4% of its games).
• The Mets have played in 117 games with a set over/under, and have combined with opponents to go over the total 52 times (52-61-4).
• The Mets have a 55-62-0 record against the spread this season (covering 47% of the time).

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 qualifying batters, he ranks 100th in batting average, his on-base percentage ranks 28th, and he is third in slugging.
• Raleigh has hit safely in two games in a row. In his last five games he is batting .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. He's slugging .455 with an on-base percentage of .355.
• His batting average is 19th among qualified players, his on-base percentage 35th, and his slugging percentage 56th.
• Julio Rodriguez has an OPS of .769, fueled by an OBP of .313 and a team-best slugging percentage of .456 this season.
• Eugenio Suarez is batting .235 with a .305 OBP and 94 RBI for Seattle this season.
• Suarez enters this game on a four-game hitting streak. 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 a team-best .383 on-base percentage. He's batting .252 and slugging .498.
• He ranks 96th in batting average, eighth in on-base percentage and 22nd in slugging percentage among all qualifying hitters in the majors.
• Soto heads into this matchup on a nine-game hitting streak. In his last 10 games he is batting .278 with five home runs, eight walks and eight RBIs.
• Pete Alonso's 124 hits lead his team. He has a batting average of .268 while slugging .522 with an on-base percentage of .352.
• He is currently 51st in batting average, 42nd in on-base percentage and 13th in slugging percentage among all qualified hitters.
• Francisco Lindor has a .451 slugging percentage, which leads the Mets.
• Brandon Nimmo is batting .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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