• The Mariners are -135 favorites vs the Orioles
• Mariners vs Orioles Over / Under today: 9 Runs
• Mariners / Orioles TV Channel: MASN | MRTV

The Seattle Mariners (-135) visit Oriole Park at Camden Yards to take on the Baltimore Orioles (+110) on June 8, 2026. First pitch is scheduled for 6:35 pm in Baltimore, MD.

This season, the Mariners are 34-32 against the spread (ATS), while the Orioles are 31-35 ATS.

Mariners vs Orioles Starting Pitchers Today:

• Mariners starting pitcher: Emerson Hancock 4-2, 2.83 ERA
• Orioles starting pitcher: Chris Bassitt 4-4, 5.28 ERA

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

Mariners vs Orioles Prediction for Today’s Game

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

Bet now on Mariners vs Orioles and all games with BetMGM

We’ve highlighted some favorite MLB player prop bets for Mariners players for Monday‘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 Runs Under in 20 of his last 25 games (+10.30 Units / 20% ROI)
• Cole Young has hit the Hits Over in his last 10 games (+10.00 Units / 59% ROI)
• Randy Arozarena has hit the Total Bases Over in 16 of his last 25 away games (+9.55 Units / 33% ROI)
• Luke Raley has hit the Singles Over in 11 of his last 20 games (+9.20 Units / 46% ROI)

And here are some favorite MLB player prop bets for Orioles players for Monday‘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 5 games (+18.90 Units / 378% ROI)
• Colton Cowser has hit the Singles Over in 8 of his last 10 games (+11.35 Units / 113% ROI)
• Adley Rutschman has hit the Walks Over in 7 of his last 8 games at home (+10.15 Units / 127% ROI)
• Taylor Ward has hit the Total Bases Under in 15 of his last 20 games at home (+9.80 Units / 31% ROI)
• Leody Taveras has hit the Runs Over in 13 of his last 25 games at home (+9.05 Units / 36% ROI)

Mariners Best Bets Today:

• The Seattle Mariners have covered the Run Line in 25 of their last 45 away games (+9.70 Units / 19% ROI)
• The Seattle Mariners have hit the Team Total Under in 23 of their last 35 away games (+8.55 Units / 21% ROI)
• The Seattle Mariners have covered the 1st Five Innings (F5) Run Line in 10 of their last 14 away games (+6.10 Units / 38% ROI)
• The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Under in 24 of their last 40 games (+5.90 Units / 12% ROI)
• The Seattle Mariners have hit the Moneyline in 9 of their last 12 games (+5.35 Units / 35% ROI)

Orioles Best Bets Today:

• The Baltimore Orioles have hit the Game Total Over in 27 of their last 45 games (+9.25 Units / 19% ROI)
• The Baltimore Orioles have covered the Run Line in 17 of their last 30 games at home (+7.80 Units / 22% ROI)
• The Baltimore Orioles have hit the Team Total Over in 12 of their last 16 games (+7.40 Units / 37% 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 Moneyline in 10 of their last 14 games at home (+6.05 Units / 38% ROI)

Mariners Against the Spread (ATS) Record

Against the spread this season, the Mariners are 26-40 against the Run Line (-7.4 Units / -10.59% ROI).

• 34-32 when betting on the Moneyline for -8.9 Units / -9.75% ROI
• 31-33 when betting on the total runs Over for -5.1 Units / -7.02% ROI
• 33-31 when betting on the total runs Under for -1.15 Units / -1.58% ROI

Orioles Against the Spread (ATS) Record

Against the spread this season, the Orioles are 31-35 against the Run Line (-5.6 Units / -6.57% ROI).

• 31-35 when betting on the Moneyline for -7.75 Units / -10.05% ROI
• 38-26 when betting on the total runs Over for +9.2 Units / 12.63% ROI
• 26-38 when betting on the total runs Under for -15.75 Units / -21.75% ROI

Orioles vs Mariners Home Run Prop Bets Today

Orioles vs Mariners Total Hits Prop Bets Today

Orioles vs Mariners Strikeout Prop Bets Today

Mariners Keys to the Game vs. the Orioles

The Mariners are 11-4 (.733) vs top 10 scoring offenses this season Today, they face the Orioles (eighth in runs scored).

The Mariners are 21-7 (.750) vs the bottom 10 runs allowed teams this season Today, they face the Orioles (27th runs allowed).

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 25-15 (.625) when tied entering the 7th inning since the 2025 season — 3rd best in MLB; League Avg: .500.

Orioles Keys to the Game vs. the Mariners

The Orioles are just 6-29 (.171) 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: .648.

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.

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

Mariners Hitting Stats & Trends

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

Mariners hitters are slugging just .336 against LHP this season — 2nd lowest in MLB.

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

Mariners hitters have an OBP of .332 (1,760 PA’s) against RHP this season — 5th best in MLB.

Orioles Hitting Stats & Trends

Orioles hitters are slugging just .457 on the first pitch of at-bats this season — lowest in MLB.

The Orioles are batting just .294 on the first pitch of at-bats this season — 3rd lowest in MLB.

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

Orioles hitters have chased 27% of pitches out of the zone against LHP this season — 3rd lowest in MLB.

Mariners Pitching Stats & Trends

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

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

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

Mariners pitchers have induced opposing hitters to ground into 52 double plays in 445 opportunities (12%) this season — best in MLB.

Orioles Pitching Stats & Trends

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

The Orioles have allowed 5.75 runs per game (184/32) on the road this season — highest in MLB.

Orioles pitchers have an ERA of 5.41 (228.0 IP) against division opponents this season — 3rd highest in MLB.

The longest HR allowed by the Orioles pitchers this season traveled 443.2 feet — — 5th shortest in MLB

More MLB Reading:

• Home Run Predictions Today
• Best NRFI Bets Today
• Strikeout Props Today
• MLB Starting Pitchers Today

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