Yankees vs Mariners Prediction, Odds, Moneyline, Spread & Over/Under for Aug. 12

Odds updated as of 7:11 p.m.

The Wednesday schedule in MLB includes a matchup between the New York Yankees and the Seattle Mariners.

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

Yankees vs Mariners Game Info

• New York Yankees (67-52) vs. Seattle Mariners (56-64)
• Date: Wednesday, August 12, 2026
• Time: 7:05 p.m. ET
• Venue: Yankee Stadium -- The Bronx, New York
• Coverage: ESPN

Yankees vs Mariners Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: NYY: (-128) | SEA: (+120)
• Spread: NYY: -1.5 (+152) | SEA: +1.5 (-184)
• Total: 8.5 -- Over: (-115) | Under: (-105)

Yankees vs Mariners Probable Starting Pitchers

Probable Pitchers: Will Warren (Yankees) - 8-6, 4.18 ERA vs Bryce Miller (Mariners) - 4-6, 3.08 ERA

This contest's pitching matchup is set, as the Yankees will send Will Warren (8-6) to the mound, while Bryce Miller (4-6) will take the ball for the Mariners. When Warren starts, his team is 11-10-0 against the spread this season. Warren's team has been victorious in 73.3% of the games he's started as the moneyline favorite with a record of 11-4. The Mariners are 1-11-0 against the spread when Miller starts. The Mariners have not been a moneyline underdog when Miller starts this season.

Yankees vs Mariners Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Yankees win (58.7%)

Yankees vs Mariners Moneyline

• New York is a -128 favorite on the moneyline, while Seattle is a +120 underdog on the road.

Yankees vs Mariners Spread

• The Yankees are 1.5-run home favorites on the runline against the Mariners. The Yankees are +152 to cover, and the Mariners are -184.

Yankees vs Mariners Over/Under

• Yankees versus Mariners on Aug. 12 has an over/under of 8.5 runs, with the odds on the over -115 and the under set at -105.

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

Yankees vs Mariners Betting Trends

• The Yankees have been chosen as favorites in 91 games this year and have walked away with the win 54 times (59.3%) in those games.
• This season New York has come away with a win 41 times in 70 chances when named as a favorite of at least -128 on the moneyline.
• Contests with the Yankees have gone over the total set by sportsbooks in 49 of 114 chances this season.
• The Yankees are 55-59-0 against the spread in their 114 games that had a posted line this season.
• The Mariners have gone 5-13 in games they were the underdog on the moneyline (winning 27.8% of those games).
• When playing as a moneyline underdog with odds of +120 or longer, Seattle has gone 1-2 (33.3%).
• The Mariners have played in 119 games with a set over/under, and have combined with their opponents to go over the total 57 times (57-56-6).
• The Mariners have a 41-78-0 record ATS this season.

Yankees Player Leaders

• Ben Rice leads New York in slugging percentage (.541) thanks to 54 extra-base hits. He has a .255 batting average and an on-base percentage of .349.
• Among qualified hitters, he ranks 73rd in batting average, his on-base percentage ranks 48th, and he is eighth in slugging.
• Luis Garcia leads New York with 107 hits. He is batting .282 this season and has 51 extra-base hits. He's also slugging .555 with an on-base percentage of .313.
• Among qualifying batters, he ranks 25th in batting average, 108th in on-base percentage and second in slugging percentage.
• Trent Grisham has 74 hits this season and has a slash line of .216/.310/.395.
• Grisham takes a three-game hitting streak into this matchup. During his last five outings he is batting .250 with three doubles, a home run and three RBIs.
• Jazz Chisholm has been key for New York with 84 hits, an OBP of .297 plus a slugging percentage of .395.
• Chisholm brings a two-game hitting streak into this game. During his last five outings he is batting .214 with a home run, four walks and two RBIs.

Mariners Player Leaders

• Randy Arozarena leads the Mariners with 114 hits. He's batting .276 and slugging .448 with an on-base percentage of .368.
• Including all qualifying players in the big leagues, he ranks 33rd in batting average, 20th in on-base percentage and 51st in slugging percentage.
• Josh Naylor is batting .263 with 17 doubles, 10 home runs and 37 walks. He's slugging .372 with an on-base percentage of .328.
• He ranks 58th in batting average, 80th in on-base percentage and 120th in slugging percentage in MLB.
• Cole Young has put up a slugging percentage of .406, a team-best for the Mariners.
• Julio Rodriguez has 16 doubles, 18 home runs and 37 walks while batting .256.

Yankees vs Mariners Head to Head

• 8/11/2026: 4-1 NYY (Favorite: Yankees, Spread: -1.5, Total: 8, Favorite Moneyline: -126, Underdog Moneyline: +116)
• 4/1/2026: 5-3 NYY (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -118, Underdog Moneyline: +100)
• 3/31/2026: 5-0 NYY (Favorite: Yankees, Spread: -1.5, Total: 7, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 3/30/2026: 2-1 SEA (Favorite: Yankees, Spread: -1.5, Total: 7.5, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 7/10/2025: 6-5 NYY (Favorite: Mariners, Spread: -1.5, Total: 9.5, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 7/9/2025: 9-6 NYY (Favorite: Yankees, Spread: -1.5, Total: 9.5, Favorite Moneyline: -154, Underdog Moneyline: +130)
• 7/8/2025: 10-3 NYY (Favorite: Yankees, Spread: -1.5, Total: 9, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 5/14/2025: 3-2 NYY (Favorite: Yankees, Spread: -1.5, Total: 8, Favorite Moneyline: -110, Underdog Moneyline: -106)
• 5/13/2025: 2-1 SEA (Favorite: Yankees, Spread: -1.5, Total: 7, Favorite Moneyline: -144, Underdog Moneyline: +122)
• 5/12/2025: 11-5 NYY (Favorite: Yankees, Spread: -1.5, Total: 8, Favorite Moneyline: -146, Underdog Moneyline: +124)

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