Mariners vs Orioles Prediction, Odds & Player Prop Bets Today – MLB, Jun 9

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  • The Mariners are -115 favorites vs the Orioles
  • Mariners vs Orioles Over / Under today: 8.5 Runs
  • Mariners / Orioles TV Channel: MASN | MRTV

The Seattle Mariners (-115) visit Oriole Park at Camden Yards to take on the Baltimore Orioles (-105) on June 9, 2026. First pitch is scheduled for 6:35 pm in Baltimore, MD.

This season, the Mariners are 35-32 against the spread (ATS), while the Orioles are 31-36 ATS.

Mariners vs Orioles Starting Pitchers Today:

  • Mariners starting pitcher: Logan Gilbert 4-4, 3.77 ERA
  • Orioles starting pitcher: Trevor Rogers 3-6, 6.34 ERA

Mariners vs. Orioles Odds, Run Line, Over/Under & Moneyline

SpreadOver / UnderMoneyline
Mariners-1.5 +145O 8.5 +100-115
Orioles +1.5 -175U 8.5 -120-105

Mariners vs Orioles Prediction for Today’s Game

Based on recent trends the model predicts the Mariners will win Tuesday‘s MLB game with 52.7% confidence, factoring in game simulations, recent player performances, starting pitchers and injuries.


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We’ve highlighted some favorite MLB player prop bets for Mariners players for Tuesday‘s game, looking at profitable historical betting trends:

Best Mariners Player Prop Bets Today:

  • Colt Emerson has hit the Home Runs Over in 3 of his last 8 games (+21.00 Units / 262% ROI)
  • Cole Young has hit the Hits Over in 14 of his last 15 games (+12.30 Units / 45% ROI)
  • Cole Young has hit the Singles Over in 12 of his last 15 games (+9.85 Units / 61% ROI)
  • Leody Taveras has hit the Hits Runs and RBIs Over in 14 of his last 20 away games (+9.20 Units / 41% ROI)
  • Leody Taveras has hit the Runs Over in 11 of his last 20 games (+8.20 Units / 41% ROI)

And here are some favorite MLB player prop bets for Orioles players for Tuesday‘s game, looking at profitable historical betting trends:

Best Orioles Player Prop Best Bets Today:

  • Colton Cowser has hit the Home Runs Over in 3 of his last 6 games (+17.90 Units / 298% ROI)
  • Colton Cowser has hit the Singles Over in 10 of his last 15 games at home (+11.00 Units / 73% ROI)
  • Adley Rutschman has hit the Walks Over in 7 of his last 8 games at home (+10.15 Units / 127% ROI)
  • Adley Rutschman has hit the Hits Under in 13 of his last 25 games (+8.40 Units / 30% ROI)
  • Jackson Holliday has hit the Hits Runs and RBIs Under in 18 of his last 25 games (+8.30 Units / 24% ROI)
  • The Seattle Mariners have covered the Run Line in 13 of their last 19 away games (+10.75 Units / 53% ROI)
  • The Seattle Mariners have covered the 1st Five Innings (F5) Run Line in 19 of their last 30 games (+7.65 Units / 23% ROI)
  • The Seattle Mariners have hit the Team Total Under in 22 of their last 35 away games (+6.50 Units / 16% ROI)
  • The Seattle Mariners have hit the Moneyline in 10 of their last 13 games (+6.35 Units / 38% ROI)
  • The Seattle Mariners have hit the 1st Five Innings (F5) Moneyline in 18 of their last 30 games (+6.25 Units / 15% ROI)
  • The Baltimore Orioles have hit the Game Total Over in 29 of their last 50 games (+8.15 Units / 15% ROI)
  • The Baltimore Orioles have covered the Run Line in 17 of their last 30 games at home (+7.85 Units / 22% ROI)
  • The Baltimore Orioles have hit the 1st Five Innings (F5) Team Total Under in 30 of their last 50 games at home (+7.05 Units / 12% ROI)
  • The Baltimore Orioles have hit the Team Total Over in 12 of their last 17 games (+6.40 Units / 31% ROI)
  • The Baltimore Orioles have hit the Moneyline in 10 of their last 15 games at home (+5.05 Units / 30% ROI)

Mariners Against the Spread (ATS) Record

Against the spread this season, the Mariners are 27-40 against the Run Line (-6.1 Units / -8.61% ROI).

  • 35-32 when betting on the Moneyline for -7.9 Units / -8.54% ROI
  • 31-34 when betting on the total runs Over for -6.1 Units / -8.29% ROI
  • 34-31 when betting on the total runs Under for -0.15 Units / -0.2% ROI

Orioles Against the Spread (ATS) Record

Against the spread this season, the Orioles are 31-36 against the Run Line (-7.1 Units / -8.18% ROI).

  • 31-36 when betting on the Moneyline for -8.75 Units / -11.2% ROI
  • 38-27 when betting on the total runs Over for +8.2 Units / 11.1% ROI
  • 27-38 when betting on the total runs Under for -14.75 Units / -20.04% ROI

Orioles vs Mariners Home Run Prop Bets Today

Yes
Pete Alonso +270
Julio Rodriguez +275
Patrick Wisdom +300
Gunnar Henderson +350
Randy Arozarena +375

Orioles vs Mariners Total Hits Prop Bets Today

Over Under
Gunnar Henderson 0.5 -235 0.5 +175
Randy Arozarena 0.5 -235 0.5 +175
Pete Alonso 0.5 -210 0.5 +150
Josh Naylor 0.5 -200 0.5 +150
Adley Rutschman 0.5 -190 0.5 +140

Orioles vs Mariners Strikeout Prop Bets Today

Over Under
Julio Rodriguez 0.5 -235 0.5 +170
Mitch Garver 0.5 -225 0.5 +165
Leody Taveras 0.5 -210 0.5 +155
Pete Alonso 0.5 -200 0.5 +150
Jackson Holliday 0.5 -190 0.5 +140

Mariners Keys to the Game vs. the Orioles

The Mariners are 12-4 (.750) vs top 10 scoring offenses this season Today, they face the Orioles (eighth in runs scored).

The Mariners are 19-4 (.826) when they’ve hit 2 or more home runs this season — 5th best in MLB; League Avg: .709.

The Mariners are 22-7 (.759) vs the bottom 10 runs allowed teams this season Today, they face the Orioles (27th runs allowed).

The Mariners are 25-15 (.625) when tied entering the 7th inning since the 2025 season — 2nd best in MLB; League Avg: .500.

Orioles Keys to the Game vs. the Mariners

The Orioles are just 6-30 (.167) when scoring 4 or fewer runs this season — 2nd lowest in MLB; League Avg: .275.

The Orioles are 10-2 (.833) when they’ve scored in the first inning this season — 2nd best in MLB; League Avg: .649.

The Orioles are just 6-11 (.353) when tied entering the 8th inning since the 2025 season — 5th lowest in MLB; League Avg: .500.

The Orioles are just 16-64 (.200) when allowing 2 or more home runs since the 2025 season — 4th lowest in MLB; League Avg: .298.

Mariners hitters have put just 32% of their swings in play with runners in scoring position this season — lowest in MLB.

Mariners hitters are slugging .425 against RHP this season — 3rd best in MLB.

Mariners hitters have an OPS of .757 (1,797 PA’s) against RHP this season — 4th best in MLB.

The Mariners are batting just .209 against LHP this season — lowest in MLB.

Orioles hitters have an OPS of just .472 (1,361 PA’s) with two-strikes this season — 4th lowest in MLB.

Orioles hitters are slugging just .173 on pitches out of the zone this season — tied for 2nd lowest in MLB.

The Orioles are batting just .297 on the first pitch of at-bats this season — tied for 3rd lowest in MLB.

Orioles hitters are slugging just .458 on the first pitch of at-bats this season — lowest in MLB.

Mariners pitchers have a first-pitch strike rate of 67% this season — highest in MLB.

Mariners pitchers have walked 6% of batters when facing the leadoff batter in the inning this season — best in MLB.

Mariners pitchers have thrown at least two strikes in their first three pitches to 69% of opposing batters this season — highest in MLB.

Mariners pitchers have walked 7% of batters this season — best in MLB.

Orioles pitchers have a strikeout rate of just 20% this season — tied for 5th lowest in MLB.

Orioles pitchers have an ERA of 5.52 (272.1 IP) on the road this season — tied for highest in MLB.

Opponents are hitting .263 against Orioles pitchers this season — 2nd highest in MLB.

Orioles pitchers have allowed an exit velocity of 95 MPH or greater 691 times this season — 5th most in MLB.

More MLB Reading:


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Our BetMGM betting authors are experts who focus on individual game matchups & player prop bets with an emphasis on betting odds, lines & predictions.

Our BetMGM betting authors are experts who focus on individual game matchups & player prop bets with an emphasis on betting odds, lines & predictions.