• The Mariners are -135 favorites vs the Pirates
• Mariners vs Pirates Over / Under today: 8.5 Runs
• Mariners / Pirates TV Channel: MRTV | SNPT

The Seattle Mariners (-135) visit PNC Park to take on the Pittsburgh Pirates (+110) on June 23, 2026. First pitch is scheduled for 6:40 pm in Pittsburgh, PA.

This season, the Mariners are 40-39 against the spread (ATS), while the Pirates are 37-39 ATS.

Mariners vs Pirates Starting Pitchers Today:

• Mariners starting pitcher: George Kirby 5-7, 4.10 ERA
• Pirates starting pitcher: Mitch Keller 5-4, 5.27 ERA

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

Mariners vs Pirates Prediction for Today’s Game

Based on recent trends the model predicts the Mariners will win Tuesday‘s MLB game with 52.9% 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 7 away games (+16.90 Units / 241% ROI)
• Cal Raleigh has hit the Total Bases Under in 14 of his last 15 games (+12.95 Units / 59% ROI)
• Cal Raleigh has hit the RBIs Under in 14 of his last 15 games (+12.15 Units / 40% ROI)
• Victor Robles has hit the Hits Runs and RBIs Under in 18 of his last 25 games (+11.60 Units / 37% ROI)
• George Kirby has hit the Hits Allowed Over in 18 of his last 25 games (+10.50 Units / 34% ROI)

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

Best Pirates Player Prop Best Bets Today:

• Ryan O’Hearn has hit the Home Runs Over in 4 of his last 10 games at home (+22.40 Units / 224% ROI)
• Bryan Reynolds has hit the Hits Runs and RBIs Over in 19 of his last 25 games at home (+11.95 Units / 39% ROI)
• Bryan Reynolds has hit the Hits Over in 20 of his last 25 games at home (+10.80 Units / 20% ROI)
• Brandon Lowe has hit the Singles Under in 19 of his last 25 games at home (+10.20 Units / 27% ROI)
• Bryan Reynolds has hit the Total Bases Over in 15 of his last 25 games at home (+8.60 Units / 33% ROI)

Mariners Best Bets Today:

• The Seattle Mariners have hit the Team Total Under in 15 of their last 20 games (+9.40 Units / 40% ROI)
• The Seattle Mariners have hit the Game Total Over in 10 of their last 14 away games (+6.95 Units / 45% ROI)
• The Seattle Mariners have covered the Run Line in 14 of their last 25 away games (+6.85 Units / 26% ROI)
• The Seattle Mariners have covered the 1st Five Innings (F5) Run Line in 13 of their last 21 away games (+4.85 Units / 21% ROI)
• The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Over in 9 of their last 13 away games (+4.70 Units / 32% ROI)

Pirates Best Bets Today:

• The Pittsburgh Pirates have hit the Game Total Over in 27 of their last 40 games at home (+12.90 Units / 29% ROI)
• The Pittsburgh Pirates have hit the 1st Five Innings (F5) Team Total Under in 10 of their last 12 games (+8.10 Units / 54% ROI)
• The Pittsburgh Pirates have hit the Team Total Under in 10 of their last 15 games (+4.40 Units / 26% ROI)
• The Pittsburgh Pirates have covered the Run Line in 3 of their last 5 games (+0.70 Units / 12% ROI)
• The Pittsburgh Pirates have hit the Moneyline in 5 of their last 9 games at home (+0.60 Units / 5% ROI)

Mariners Against the Spread (ATS) Record

Against the spread this season, the Mariners are 31-48 against the Run Line (-8.1 Units / -9.78% ROI).

• 40-39 when betting on the Moneyline for -11.2 Units / -10.42% ROI
• 38-38 when betting on the total runs Over for -3.75 Units / -4.3% ROI
• 38-38 when betting on the total runs Under for -3.55 Units / -4.09% ROI

Pirates Against the Spread (ATS) Record

Against the spread this season, the Pirates are 37-39 against the Run Line (-2.05 Units / -2.17% ROI).

• 39-39 when betting on the Moneyline for -8.25 Units / -8.23% ROI
• 44-31 when betting on the total runs Over for +9.95 Units / 11.56% ROI
• 31-44 when betting on the total runs Under for -17.1 Units / -19.98% ROI

Mariners Keys to the Game vs. the Pirates

The Mariners are 26-12 (.684) vs the bottom 10 runs allowed teams this season Today, they face the Pirates (22nd runs allowed).

The Mariners are 16-8 (.667) vs top 10 scoring offenses this season Today, they face the Pirates (fifth in runs scored).

The Mariners are just 1-30 (.032) when trailing entering the 8th inning this season — 5th lowest in MLB; League Avg: .105.

The Mariners are 108-35 (.755) when allowing 4 or fewer runs since the 2025 season — tied for 5th best in MLB; League Avg: .717.

Pirates Keys to the Game vs. the Mariners

The Pirates are just 2-19 (.095) when allowing 10 or more hits this season — lowest in MLB; League Avg: .245.

The Pirates are 5-2 (.714) when tied entering the 8th inning this season — 3rd best in MLB; League Avg: .500.

The Pirates are 31-7 (.816) when allowing 4 or fewer runs this season — 3rd best in MLB; League Avg: .724.

The Pirates are just 16-22 (.421) after a win this season — tied for 5th lowest in MLB; League Avg: .511.

Mariners Hitting Stats & Trends

The Mariners are batting just .208 against LHP this season — lowest in MLB.

Mariners hitters have an OPS of just .618 (874 PA’s) against LHP this season — lowest in MLB.

Mariners hitters are slugging just .326 against LHP this season — lowest in MLB.

Mariners hitters have 42 extra-base hits out of 159 total hits (just 26%) against LHP this season — lowest in MLB.

Pirates Hitting Stats & Trends

Pirates hitters have struck out in 27% of their PA’s against LHP this season — 2nd highest in MLB.

Pirates hitters have an OPS of .793 (1,519 PA’s) at home this season — 3rd best in MLB.

The Pirates are batting .272 at home this season — best in MLB.

The Pirates are batting .307 when facing the starting pitcher for the 3rd time in a game this season — best in MLB.

Mariners Pitching Stats & Trends

Mariners pitchers have a first-pitch strike rate of 66% this season — highest in MLB.

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

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

Pirates Pitching Stats & Trends

Pirates pitchers have a strikeout rate of 45% with two-strikes this season — 5th best in MLB.

Pirates pitchers have walked 10% of batters when facing the leadoff batter in the inning this season — tied for 5th highest in MLB.

Pirates pitchers have a strikeout rate of 24% in the first 5 innings this season — 5th best in MLB.

The Pirates have allowed 5.23 runs per game (204/39) at home this season — 4th 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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