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

Odds updated as of 2:11 a.m.

On Wednesday in MLB, the New York Yankees are up against the Seattle Mariners.

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

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: (-122) | SEA: (+104)
• Spread: NYY: -1.5 (+172) | SEA: +1.5 (-210)
• 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

The Yankees will give the ball to Will Warren (8-6, 4.18 ERA), who is eyeing win No. 9 on the season, and the Mariners will turn to Bryce Miller (4-6, 3.08 ERA). Warren and his team have a record of 11-10-0 against the spread when he starts. When Warren starts a game and his team is the favorite on the moneyline, they have a record of 11-4. When Miller starts, the Mariners are 1-11-0 against the spread. The Mariners have yet to be named 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 (57.3%)

Yankees vs Mariners Moneyline

• The Yankees vs Mariners moneyline has New York as a -122 favorite, while Seattle is a +104 underdog on the road.

Yankees vs Mariners Spread

• The Mariners are at +1.5 on the runline against the Yankees. The Mariners are -210 to cover the spread, and the Yankees are +172.

Yankees vs Mariners Over/Under

• A total of 8.5 runs has been set for the Yankees-Mariners game on Aug. 12, with the over available at -115 and the under at -105.

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

Yankees vs Mariners Betting Trends

• The Yankees have been victorious in 54, or 59.3%, of the 91 contests they have been chosen as favorites in this season.
• New York has a record of 46-31 in contests when oddsmakers favor them by -122 or more on the moneyline.
• Contests with the Yankees have gone over the total set by sportsbooks in 49 of 114 chances this season.
• The Yankees have posted a record of 55-59-0 against the spread this season.
• The Mariners have been the moneyline underdog 18 total times this season. They've gone 5-13 in those games.
• Seattle has gone 2-4 in games it has played as a moneyline underdog with odds of +104 or longer (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 (covering just 34.5% of the time).

Yankees Player Leaders

• Ben Rice leads New York with a slugging percentage of .541, fueled by 54 extra-base hits. He has a .255 batting average and an on-base percentage of .349.
• Among qualified hitters in MLB, his batting average ranks 73rd, his on-base percentage ranks 47th, and he is eighth in slugging.
• Luis Garcia has 107 hits, which is best among New York batters this season. He's batting .282 with 51 extra-base hits. He's also slugging .555 with an on-base percentage of .313.
• He is 24th in batting average, 107th in on-base percentage and second in slugging among qualified hitters.
• Trent Grisham has 74 hits this season and has a slash line of .216/.310/.395.
• Grisham enters this matchup with three games in a row with at least one hit. 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 takes a two-game hitting streak into this matchup. During his last five outings he is batting .214 with a home run, four walks and two RBIs.

Mariners Player Leaders

• Randy Arozarena has racked up 114 hits, a team-high for the Mariners. He's batting .276 and slugging .448 with an on-base percentage of .368.
• He ranks 33rd in batting average, 20th in on-base percentage and 51st in slugging percentage among all qualified hitters in the big leagues.
• Josh Naylor is hitting .263 with 17 doubles, 10 home runs and 37 walks. He's slugging .372 with an on-base percentage of .328.
• He is currently 59th in batting average, 80th in on-base percentage and 120th in slugging percentage among all qualifying hitters.
• Julio Rodriguez is hitting .256 with 16 doubles, 18 home runs and 37 walks.
• Cole Young leads his team with a .406 slugging percentage.

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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