• The Mariners are -150 favorites vs the Orioles
• Orioles vs Mariners Over / Under today: 7.5 Runs
• Orioles / Mariners TV Channel: MASN | MRTV

The Baltimore Orioles (+125) visit T-Mobile Park to take on the Seattle Mariners (-150) on June 18, 2026. First pitch is scheduled for 4:10 pm in Seattle, WA.

This season, the Orioles are 35-40 against the spread (ATS), while the Mariners are 29-46 ATS.

Orioles vs Mariners Starting Pitchers Today:

• Orioles starting pitcher: Shane Baz 4-6, 3.99 ERA
• Mariners starting pitcher: Bryan Woo 5-5, 4.28 ERA

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

Orioles vs Mariners Prediction for Today’s Game

Based on recent trends the model predicts the Mariners will win Thursday‘s MLB game with 57.5% 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 Orioles players for Thursday‘s game, looking at profitable historical betting trends:

Best Orioles Player Prop Bets Today:

• Jackson Holliday has hit the Home Runs Over in 2 of his last 6 games (+11.50 Units / 192% ROI)
• Adley Rutschman has hit the Walks Over in 13 of his last 25 games (+8.60 Units / 34% ROI)
• Adley Rutschman has hit the Hits Under in 13 of his last 25 games (+8.20 Units / 29% ROI)
• Samuel Basallo has hit the Hits Runs and RBIs Over in 16 of his last 25 games (+7.15 Units / 25% ROI)
• Gunnar Henderson has hit the RBIs Under in 16 of his last 20 away games (+6.85 Units / 14% ROI)

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

Best Mariners Player Prop Best Bets Today:

• Colt Emerson has hit the Home Runs Over in 3 of his last 9 games (+14.90 Units / 166% ROI)
• Cole Young has hit the Hits Over in 19 of his last 25 games (+10.75 Units / 25% ROI)
• Cole Young has hit the Singles Over in 15 of his last 20 games (+10.70 Units / 46% ROI)
• Cole Young has hit the Runs Under in 17 of his last 20 games at home (+10.60 Units / 24% ROI)
• Leody Taveras has hit the Total Bases Over in 11 of his last 15 games at home (+6.85 Units / 31% ROI)

Orioles Best Bets Today:

• The Baltimore Orioles have hit the Game Total Over in 17 of their last 25 away games (+9.30 Units / 34% ROI)
• The Baltimore Orioles have hit the Team Total Over in 16 of their last 23 games (+8.25 Units / 29% ROI)
• The Baltimore Orioles have hit the 1st Five Innings (F5) Team Total Under in 21 of their last 35 games (+7.25 Units / 19% ROI)
• The Baltimore Orioles have covered the Run Line in 15 of their last 25 games (+4.70 Units / 13% ROI)
• The Baltimore Orioles have covered the 1st Five Innings (F5) Run Line in 5 of their last 7 games (+2.85 Units / 33% ROI)

Mariners Best Bets Today:

• The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Under in 13 of their last 18 games at home (+8.40 Units / 38% ROI)
• The Seattle Mariners have hit the Game Total Over in 10 of their last 14 games (+6.95 Units / 45% ROI)
• The Seattle Mariners have hit the Team Total Under in 12 of their last 19 games at home (+5.40 Units / 27% ROI)
• The Seattle Mariners have hit the Moneyline in 7 of their last 9 games at home (+4.30 Units / 34% ROI)
• The Seattle Mariners have hit the 1st Five Innings (F5) Moneyline in 11 of their last 21 games (+3.20 Units / 11% ROI)

Orioles Against the Spread (ATS) Record

Against the spread this season, the Orioles are 36-39 against the Run Line (-5.35 Units / -5.43% ROI).

• 35-40 when betting on the Moneyline for -9.25 Units / -10.61% ROI
• 43-29 when betting on the total runs Over for +11 Units / 13.28% ROI
• 29-43 when betting on the total runs Under for -18.05 Units / -21.96% ROI

Mariners Against the Spread (ATS) Record

Against the spread this season, the Mariners are 29-46 against the Run Line (-9.5 Units / -12.05% ROI).

• 38-37 when betting on the Moneyline for -10.75 Units / -10.49% ROI
• 37-35 when betting on the total runs Over for -1.2 Units / -1.45% ROI
• 35-37 when betting on the total runs Under for -5.6 Units / -6.78% ROI

Mariners vs Orioles Home Run Prop Bets Today

Mariners vs Orioles Total Hits Prop Bets Today

Mariners vs Orioles Strikeout Prop Bets Today

Orioles Keys to the Game vs. the Mariners

The Orioles are just 6-33 (.154) when scoring 4 or fewer runs this season — 2nd lowest in MLB; League Avg: .271.

The Orioles are just 13-21 (.382) on the road this season — 5th lowest in MLB; League Avg: .469.

The Orioles are just 6-11 (.353) when tied entering the 8th inning since the 2025 season — 3rd lowest in MLB; League Avg: .500.

The Orioles are just 11-16 (.407) when tied entering the 7th inning since the 2025 season — tied for 5th lowest in MLB; League Avg: .500.

Mariners Keys to the Game vs. the Orioles

The Mariners are 25-12 (.676) vs the bottom 10 runs allowed teams this season Today, they face the Orioles (27th runs allowed).

The Mariners are 15-9 (.625) vs top 10 scoring offenses this season Today, they face the Orioles (ninth in runs scored).

The Mariners are 26-15 (.634) when tied entering the 7th inning since the 2025 season — 2nd best in MLB; League Avg: .500.

The Mariners are 6-91 (.062) when trailing entering the 9th inning since the 2025 season — 5th best in MLB; League Avg: .047.

Orioles Hitting Stats & Trends

Orioles hitters are slugging just .458 on the first pitch of at-bats this season — 2nd lowest in MLB.

The Orioles are batting just .295 on the first pitch of at-bats this season — 2nd lowest in MLB.

Orioles hitters have an OPS of just .667 (781 PA’s) against LHP this season — 4th lowest in MLB.

Orioles hitters are slugging just .237 with two-strikes this season — 5th lowest in MLB.

Mariners Hitting Stats & Trends

Mariners hitters have an OPS of just .636 (794 PA’s) against LHP this season — lowest in MLB.

Mariners hitters are slugging just .340 against LHP this season — lowest in MLB.

The Mariners are batting just .216 against LHP this season — tied for lowest in MLB.

Mariners hitters have 40 extra-base hits out of 150 total hits (just 27%) against LHP this season — lowest in MLB.

Orioles Pitching Stats & Trends

Orioles pitchers have an ERA of 5.38 (289.1 IP) on the road this season — 3rd highest in MLB.

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

Opponents are hitting .260 against Orioles pitchers this season — 3rd highest in MLB.

Orioles pitchers have allowed an exit velocity of 95 MPH or greater 780 times this season — 5th most in MLB.

Mariners Pitching Stats & Trends

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 walked 7% of batters 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.

More MLB Reading:

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

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