Mariners vs Orioles Prediction, Odds, Moneyline, Spread & Over/Under for June 9

Odds updated as of 5:11 a.m.

The Seattle Mariners versus the Baltimore Orioles is on the MLB schedule for Tuesday.

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

Mariners vs Orioles Game Info

• Seattle Mariners (35-32) vs. Baltimore Orioles (31-36)
• Date: Tuesday, June 9, 2026
• Time: 6:35 p.m. ET
• Venue: Oriole Park at Camden Yards -- Baltimore, Maryland
• Coverage: MASN and Mariners.TV

Mariners vs Orioles Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-120) | BAL: (+102)
• Spread: SEA: -1.5 (+138) | BAL: +1.5 (-170)
• Total: 8.5 -- Over: (-122) | Under: (+100)

Mariners vs Orioles Probable Starting Pitchers

Probable Pitchers: Logan Gilbert (Mariners) - 4-4, 3.79 ERA vs Trevor Rogers (Orioles) - 3-6, 6.29 ERA

The Mariners will give the nod to Logan Gilbert (4-4, 3.79 ERA), who is eyeing win No. 5 on the season, and the Orioles will counter with Trevor Rogers (3-6, 6.29 ERA). Gilbert's team is 5-8-0 against the spread in his starts this season. Gilbert's team has a record of 7-4 this season when he starts and they are the favorite on the moneyline. The Orioles have a 3-8-0 record against the spread in Rogers' starts. The Orioles have been the underdog on the moneyline in four of Rogers' starts this season, and they went 1-3 in those matchups.

Mariners vs Orioles Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (62.2%)

Mariners vs Orioles Moneyline

• Looking at the moneyline for Mariners-Orioles, Seattle is the favorite at -120, and Baltimore is +102 playing at home.

Mariners vs Orioles Spread

• The Orioles are at +1.5 on the runline against the Mariners. The Orioles are -170 to cover the spread, and the Mariners are +138.

Mariners vs Orioles Over/Under

• The over/under for Mariners-Orioles on June 9 is 8.5. The over is -122, and the under is +100.

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Mariners vs Orioles Betting Trends

• The Mariners have been chosen as favorites in 61 games this year and have walked away with the win 33 times (54.1%) in those games.
• This year Seattle has won 30 of 54 games when listed as at least -120 on the moneyline.
• The Mariners and their opponents have gone over the total this season in 31 of their 67 opportunities.
• The Mariners have an against the spread record of 26-41-0 in 67 games with a line this season.
• The Orioles have won 42.4% of the games this season they were the moneyline underdog (14-19).
• Baltimore has gone 10-14 when playing as a moneyline underdog with odds of +102 or longer (41.7%).
• In the 67 games oddsmakers have set an over/under for the Orioles, they have combined with opponents to go over the total 39 times (39-26-2).
• The Orioles have covered 46.3% of their games this season, going 31-36-0 against the spread.

Mariners Player Leaders

• Randy Arozarena leads Seattle OPS (.828) this season. He has a .293 batting average, an on-base percentage of .381, and a slugging percentage of .447.
• Among all qualifying batters in baseball, he is 19th in batting average, 18th in on-base percentage, and 59th in slugging.
• Arozarena hopes to build on a four-game hitting streak in this matchup. During his last five outings he is batting .412 with two doubles, four walks and four RBIs.
• Julio Rodriguez leads Seattle with 69 hits. He is batting .256 this season and has 27 extra-base hits. He's also slugging .452 with an on-base percentage of .315.
• Among all qualifying players, he ranks 70th in batting average, 109th in on-base percentage and 55th in slugging percentage.
• Josh Naylor has 64 hits this season and has a slash line of .261/.323/.376.
• Naylor has recorded at least one base hit in four games in a row. In his last five games he is batting .333 with two doubles, a home run, a walk and five RBIs.
• Cole Young has four home runs, 31 RBI and a batting average of .252 this season.
• Young has safely hit in 11 games in a row. During his last 10 outings he is hitting .300 with a home run, a walk and four RBIs.

Orioles Player Leaders

• Pete Alonso has collected 61 hits, a team-high for the Orioles. He's batting .239 and slugging .439 with an on-base percentage of .318.
• Including all qualifying players in the big leagues, his batting average places him 99th, his on-base percentage is 105th, and he is 65th in slugging.
• Taylor Ward's .403 OBP and .364 slugging percentage both pace his team. He has a batting average of .260.
• Including all qualifying hitters, his batting average places him 65th, his on-base percentage is fifth, and he is 124th in slugging.
• Adley Rutschman is hitting .267 with 14 doubles, a triple, eight home runs and 21 walks.
• Gunnar Henderson has 13 doubles, a triple, 13 home runs and 22 walks while hitting .224.

Mariners vs Orioles Head to Head

• 6/8/2026: 6-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 9, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 8/14/2025: 5-3 BAL (Favorite: Mariners, Spread: -1.5, Total: 9.5, Favorite Moneyline: -132, Underdog Moneyline: +112)
• 8/12/2025: 1-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 9, Favorite Moneyline: -158, Underdog Moneyline: +134)
• 6/5/2025: 4-3 BAL (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -156, Underdog Moneyline: +132)
• 6/4/2025: 3-2 BAL (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -108, Underdog Moneyline: -108)
• 6/3/2025: 5-1 BAL (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -148, Underdog Moneyline: +126)
• 7/4/2024: 7-3 SEA (Favorite: Orioles, Spread: -1.5, Total: 7, Favorite Moneyline: -144, Underdog Moneyline: +122)
• 7/3/2024: 4-1 BAL (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -136, Underdog Moneyline: +116)
• 7/2/2024: 2-0 BAL (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -108, Underdog Moneyline: -108)
• 5/19/2024: 6-3 BAL (Favorite: Orioles, Spread: -1.5, Total: 7, Favorite Moneyline: -144, Underdog Moneyline: +122)

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