Mariners vs Athletics Prediction, Odds, Moneyline, Spread & Over/Under for Sept. 13

Odds updated as of 11:12 p.m.

The Sunday schedule in MLB includes a matchup between the Seattle Mariners and the Athletics.

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

Mariners vs Athletics Game Info

• Seattle Mariners (69-79) vs. Athletics (60-88)
• Date: Sunday, September 13, 2026
• Time: 4:05 p.m. ET
• Venue: Sutter Health Park -- West Sacramento, California
• Coverage: NBCS-CA and Mariners.TV

Mariners vs Athletics Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-142) | OAK: (+120)
• Spread: SEA: -1.5 (+112) | OAK: +1.5 (-134)
• Total: 9.5 -- Over: (-122) | Under: (+100)

Mariners vs Athletics Probable Starting Pitchers

Probable Pitchers: Bryce Miller (Mariners) - 4-9, 4.22 ERA vs Jacob Lopez (Athletics) - 6-4, 4.78 ERA

The Mariners will give the nod to Bryce Miller (4-9, 4.22 ERA), who is eyeing win No. 5 on the season, and the Athletics will counter with Jacob Lopez (6-4, 4.78 ERA). Miller and his team have a record of 2-15-0 against the spread when he starts. Miller's team has won 23.1% of his starts when they are favored on the moneyline (3-10). The Athletics have a 12-9-0 ATS record in Lopez's 21 starts that had a set spread. The Athletics are 10-9 in Lopez's 19 starts this season that they were the underdog on the moneyline.

Mariners vs Athletics Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Athletics win (52.3%)

Mariners vs Athletics Moneyline

• The Mariners vs Athletics moneyline has the Mariners as a -142 favorite, while the Athletics are a +120 underdog at home.

Mariners vs Athletics Spread

• The Mariners are 1.5-run favorites on the runline against the Athletics. The Mariners are +112 to cover, while the Athletics are -134 to cover.

Mariners vs Athletics Over/Under

• Mariners versus Athletics on Sept. 13 has an over/under of 9.5 runs, with the odds on the over -122 and the under set at +100.

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Mariners vs Athletics Betting Trends

• The Mariners have won in 55, or 49.5%, of the 111 contests they have been named as odds-on favorites in this year.
• This year, the Mariners have won 31 of 52 games when listed as at least -142 or better on the moneyline.
• The Mariners and their opponents have hit the over in 77 of their 146 games with a total this season.
• The Mariners are 54-92-0 against the spread in their 146 games that had a posted line this season.
• The Athletics have won 44 of the 111 games they were listed as the moneyline underdog this season (39.6%).
• The Athletics have gone 24-40 in games they have played as a moneyline underdog with odds of +120 or longer (37.5%).
• The Athletics have played in 148 games with a set over/under, and have combined with their opponents to go over the total 76 times (76-70-2).
• The Athletics have covered 47.3% of their games this season, going 70-78-0 ATS.

Mariners Player Leaders

• Randy Arozarena has 141 hits this season and a team-best OBP of .371. He has a .272 batting average and a slugging percentage of .459.
• He ranks 36th in batting average, 13th in on-base percentage, and 39th in slugging among all qualifying hitters in MLB.
• Josh Naylor has hit 10 homers this season while driving in 49 runs. He's batting .267 this season and slugging .359 with an on-base percentage of .323.
• Among all qualifying batters, he is 49th in batting average, 79th in on-base percentage and 127th in slugging percentage.
• Cole Young has collected 132 base hits, an OBP of .311 and a slugging percentage of .386 this season.
• Young brings a four-game hitting streak into this matchup. In his last five games he is hitting .313 with a double, a triple, a walk and two RBIs.
• Julio Rodriguez has been key for Seattle with 130 hits, an OBP of .299 plus a slugging percentage of .394.
• Rodriguez brings a three-game hitting streak into this matchup. During his last five outings he is batting .211 with a home run, a walk and four RBIs.

Athletics Player Leaders

• Jeff McNeil has racked up a team-high OBP (.319) and slugging percentage (.374). He's batting .270.
• Including all the qualified hitters in the big leagues, his batting average puts him 42nd, his on-base percentage is 87th, and he is 116th in slugging.
• McNeil heads into this matchup on a three-game hitting streak. During his last five outings he is hitting .238 with a double, a walk and two RBIs.
• Shea Langeliers is batting .263 with 19 doubles, 23 home runs and 34 walks. He's slugging .497 with an on-base percentage of .332.
• Zack Gelof has 15 doubles, two triples, 17 home runs and 27 walks while hitting .251.
• Lawrence Butler leads his team with 96 hits and a .319 on-base percentage.

Mariners vs Athletics Head to Head

• 9/11/2026: 6-5 OAK (Favorite: Mariners, Spread: -1.5, Total: 10.5, Favorite Moneyline: -166, Underdog Moneyline: +140)
• 9/6/2026: 2-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -215, Underdog Moneyline: +180)
• 9/5/2026: 6-2 OAK (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -245, Underdog Moneyline: +200)
• 9/4/2026: 7-6 OAK (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -235, Underdog Moneyline: +194)
• 9/3/2026: 7-4 OAK (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -205, Underdog Moneyline: +172)
• 5/27/2026: 9-1 SEA (Favorite: Mariners, Spread: -1.5, Total: 9, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 5/26/2026: 4-1 SEA (Favorite: Athletics, Spread: -1.5, Total: 9.5, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 5/25/2026: 9-2 SEA (Favorite: Mariners, Spread: -1.5, Total: 10.5, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 4/22/2026: 5-4 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -190, Underdog Moneyline: +160)
• 4/21/2026: 5-2 OAK (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -166, Underdog Moneyline: +140)

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