• The Mariners are -140 favorites vs the Nationals
• Mariners vs Nationals Over / Under today: 10 Runs
• Mariners / Nationals TV Channel: MRTV | NATV

The Seattle Mariners (-140) visit Nationals Park to take on the Washington Nationals (+115) on June 14, 2026. First pitch is scheduled for 1:35 pm in Washington, DC.

This season, the Mariners are 37-35 against the spread (ATS), while the Nationals are 44-26 ATS.

Mariners vs Nationals Starting Pitchers Today:

• Mariners starting pitcher: Emerson Hancock 5-2, 2.76 ERA
• Nationals starting pitcher: Miles Mikolas 1-5, 5.87 ERA

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

Mariners vs Nationals Prediction for Today’s Game

Based on recent trends the model predicts the Mariners will win Sunday‘s MLB game with 59.4% confidence, factoring in game simulations, recent player performances, starting pitchers and injuries.

Bet now on Mariners vs Nationals and all games with BetMGM

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

Best Mariners Player Prop Bets Today:

• Colt Emerson has hit the Home Runs Over in 4 of his last 9 games (+24.90 Units / 277% ROI)
• Cole Young has hit the Hits Over in 17 of his last 20 games (+13.30 Units / 37% ROI)
• Cole Young has hit the Singles Over in 16 of his last 20 games (+12.70 Units / 55% ROI)
• Colt Emerson has hit the Runs Over in 8 of his last 10 away games (+9.35 Units / 94% ROI)
• Cole Young has hit the Total Bases Over in 11 of his last 15 games (+7.40 Units / 39% ROI)

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

Best Nationals Player Prop Best Bets Today:

• Luis Garcia has hit the Home Runs Over in 4 of his last 10 games (+17.50 Units / 175% ROI)
• Luis Garcia has hit the Hits Under in 17 of his last 25 games at home (+16.71 Units / 50% ROI)
• Jose Tena has hit the Singles Under in 20 of his last 25 games (+12.85 Units / 37% ROI)
• Keibert Ruiz has hit the Total Bases Over in 16 of his last 20 games (+10.65 Units / 34% ROI)
• Luis Garcia has hit the Runs Under in 13 of his last 15 games at home (+10.15 Units / 41% ROI)

Mariners Best Bets Today:

• The Seattle Mariners have covered the Run Line in 14 of their last 24 away games (+7.85 Units / 31% ROI)
• The Seattle Mariners have covered the 1st Five Innings (F5) Run Line in 21 of their last 35 games (+6.45 Units / 17% ROI)
• The Seattle Mariners have hit the Game Total Over in 8 of their last 11 games (+6.05 Units / 50% ROI)
• The Seattle Mariners have hit the 1st Five Innings (F5) Moneyline in 20 of their last 35 games (+6.05 Units / 12% ROI)
• The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Over in 9 of their last 12 away games (+6.00 Units / 44% ROI)

Nationals Best Bets Today:

• The Washington Nationals have covered the 1st Five Innings (F5) Run Line in 36 of their last 50 games (+19.75 Units / 33% ROI)
• The Washington Nationals have hit the Game Total Over in 30 of their last 45 games at home (+15.90 Units / 32% ROI)
• The Washington Nationals have hit the 1st Five Innings (F5) Moneyline in 28 of their last 50 games (+15.50 Units / 29% ROI)
• The Washington Nationals have covered the Run Line in 30 of their last 45 games (+9.70 Units / 15% ROI)
• The Washington Nationals have hit the 1st Five Innings (F5) Team Total Over in 31 of their last 50 games (+9.20 Units / 15% ROI)

Mariners Against the Spread (ATS) Record

Against the spread this season, the Mariners are 28-44 against the Run Line (-9 Units / -11.87% ROI).

• 37-35 when betting on the Moneyline for -9.1 Units / -9.25% ROI
• 35-34 when betting on the total runs Over for -2.1 Units / -2.65% ROI
• 34-35 when betting on the total runs Under for -4.4 Units / -5.55% ROI

Nationals Against the Spread (ATS) Record

Against the spread this season, the Nationals are 44-26 against the Run Line (+10.15 Units / 10.09% ROI).

• 36-35 when betting on the Moneyline for +10.8 Units / 14.79% ROI
• 44-24 when betting on the total runs Over for +17.9 Units / 22.92% ROI
• 24-44 when betting on the total runs Under for -24.25 Units / -31.03% ROI

Nationals vs Mariners Home Run Prop Bets Today

Nationals vs Mariners Total Hits Prop Bets Today

Nationals vs Mariners Strikeout Prop Bets Today

Mariners Keys to the Game vs. the Nationals

The Mariners are 24-10 (.706) vs the bottom 10 runs allowed teams this season Today, they face the Nationals (29th runs allowed).

The Mariners are 14-7 (.667) vs top 10 scoring offenses this season Today, they face the Nationals (third in runs scored).

The Mariners are 21-5 (.808) when they’ve hit 2 or more home runs this season — 5th best in MLB; League Avg: .705.

The Mariners are 61-36 (.629) vs the bottom 10 runs allowed teams since the 2025 season Today, they face the Nationals (29th runs allowed).

Nationals Keys to the Game vs. the Mariners

The Nationals are just 1-28 (.034) when trailing entering the 8th inning this season — 5th lowest in MLB; League Avg: .108.

The Nationals are just 13-21 (.382) at home this season — 2nd lowest in MLB; League Avg: .529.

The Nationals are 30-6 (.833) when allowing 4 or fewer runs this season — 5th best in MLB; League Avg: .727.

The Nationals are just 44-70 (.383) at home since the 2025 season — 2nd lowest in MLB; League Avg: .538.

Mariners Hitting Stats & Trends

Mariners hitters have an OPS of just .629 (782 PA’s) against LHP this season — lowest in MLB.

Mariners hitters are slugging just .337 against LHP this season — lowest in MLB.

The Mariners are batting just .213 against LHP this season — lowest in MLB.

Mariners hitters have an OBP of just .293 (782 PA’s) against LHP this season — 3rd lowest in MLB.

Nationals Hitting Stats & Trends

Nationals hitters have an OPS of .788 (768 PA’s) against LHP this season — 2nd best in MLB.

Nationals hitters have an OBP of just .277 (336 PA’s) when facing the starting pitcher for the 3rd time in a game this season — lowest in MLB.

The Nationals have scored 1.79 runs per game (127/71) in late innings this season — best in MLB.

The Nationals have scored 1.99 runs per game (141/71) in late innings this season — best in MLB.

Mariners Pitching Stats & Trends

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

Nationals Pitching Stats & Trends

Nationals pitchers have a strikeout rate of just 37% with two-strikes this season — lowest in MLB.

Opponents have a miss rate of just 22% against Nationals pitchers this season — lowest in MLB.

Nationals pitchers have a strikeout rate of just 20% this season — 3rd lowest in MLB.

The Nationals pitchers have allowed an average Exit Velocity of 89.8 MPH this season (1,898 balls in play) — 3rd 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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