Mariners vs Athletics Prediction, Odds, Moneyline, Spread & Over/Under for Sept. 5

Odds updated as of 5:12 a.m.

On Saturday in MLB, the Seattle Mariners are up against the Athletics.

We've got you covered, in terms of the vital information about this matchup before you take a look at the MLB odds and spreads on FanDuel Sportsbook.

Mariners vs Athletics Game Info

• Seattle Mariners (66-76) vs. Athletics (56-86)
• Date: Saturday, September 5, 2026
• Time: 9:40 p.m. ET
• Venue: T-Mobile Park -- Seattle, Washington
• Coverage: Mariners.TV and NBCS-CA

Mariners vs Athletics Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-255) | OAK: (+210)
• Spread: SEA: -1.5 (-118) | OAK: +1.5 (-102)
• Total: 7.5 -- Over: (-122) | Under: (+100)

Mariners vs Athletics Probable Starting Pitchers

Probable Pitchers: George Kirby (Mariners) - 9-10, 4.19 ERA vs Jeffrey Springs (Athletics) - 3-13, 6.37 ERA

This contest's pitching matchup is set, as the Mariners will send George Kirby (9-10) to the mound, while Jeffrey Springs (3-13) will answer the bell for the Athletics. Kirby's team is 9-17-0 against the spread in his starts this season. Kirby's team has a record of 12-11 this season when he starts and they are the favorite on the moneyline. When Springs starts, the Athletics have gone 10-15-0 against the spread. The Athletics have a 5-13 record in Springs' 18 starts this season when they were the moneyline underdog.

Mariners vs Athletics Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (60%)

Mariners vs Athletics Moneyline

• The Mariners vs Athletics moneyline has the Mariners as a -255 favorite, while the Athletics are a +210 underdog on the road.

Mariners vs Athletics Spread

• The Mariners are 1.5-run favorites on the runline against the Athletics. The Mariners are -118 to cover, while the Athletics are -102 to cover.

Mariners vs Athletics Over/Under

• The over/under for Mariners-Athletics on Sept. 5 is 7.5. The over is -122, and the under is +100.

Bet on Seattle Mariners vs. Athletics on FanDuel today!

Mariners vs Athletics Betting Trends

• The Mariners have been chosen as favorites in 105 games this year and have walked away with the win 52 times (49.5%) in those games.
• The Mariners have yet to enter a game this year with shorter moneyline odds than -255.
• The Mariners and their opponents have hit the over in 73 of their 140 games with a total this season.
• The Mariners are 52-88-0 against the spread in their 140 games with a line set by sportsbooks this season.
• The Athletics have won 40 of the 105 games they were the underdog on the moneyline this season (38.1%).
• When playing as a moneyline underdog with odds of +210 or longer, the Athletics have a record of 2-1 (66.7%).
• The Athletics have combined with their opponents to go over the total 73 times this season for a 73-67-2 record against the over/under.
• The Athletics have a 66-76-0 record ATS this season.

Mariners Player Leaders

• Randy Arozarena leads Seattle with an OBP of .370 this season while batting .273 with 57 walks and 91 runs scored. He has a slugging percentage of .467.
• Among qualified batters in the majors, he ranks 36th in batting average, 16th in on-base percentage, and 36th in slugging.
• Josh Naylor has hit 10 homers this season while driving in 48 runs. He's batting .265 this season and slugging .361 with an on-base percentage of .324.
• He ranks 53rd in batting average, 84th in on-base percentage and 124th in slugging in MLB.
• Julio Rodriguez is batting .245 with a .402 slugging percentage and 60 RBI this year.
• Cole Young has been key for Seattle with 126 hits, an OBP of .309 plus a slugging percentage of .382.
• Young takes a two-game hitting streak into this matchup. During his last five outings he is hitting .211 with two walks.

Athletics Player Leaders

• Jeff McNeil has a team-high .371 slugging percentage. He's batting .270 with an on-base percentage of .320.
• Including all the qualified players in the big leagues, his batting average is 44th, his on-base percentage is 89th, and he is 116th in slugging.
• McNeil takes a four-game hitting streak into this matchup. During his last five outings he is hitting .318 with two doubles, a home run, a walk and four RBIs.
• Lawrence Butler has 16 doubles, a triple, 12 home runs and 55 walks while batting .233. He's slugging .371 with an on-base percentage of .327.
• Including all qualifying players, he is 111th in batting average, 78th in on-base percentage and 116th in slugging percentage.
• Zack Gelof is hitting .258 with 14 doubles, a triple, 16 home runs and 26 walks.
• Jonah Heim is hitting .218 with 17 doubles, 13 home runs and 24 walks.

Mariners vs Athletics Head to Head

• 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)
• 4/20/2026: 6-4 OAK (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -142, Underdog Moneyline: +120)
• 8/24/2025: 11-4 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -180, Underdog Moneyline: +152)
• 8/23/2025: 2-1 OAK (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -172, Underdog Moneyline: +144)

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