Nationals vs Mariners Prediction, Odds & Player Prop Bets Today – MLB, Aug 23

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MLB betting odds, predictions and betting odds for today's games
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BetMGM Betting @BETMGM Aug 23, 2022, 10:22 AM
  • The Mariners (66-56) are -275 favorites vs the Nationals (41-82)
  • Nationals starting pitcher: Erick Fedde (5-7), 4.95 ERA
  • Mariners starting pitcher: Robert Ray (9-8), 3.86 ERA
  • Watch the game on ROOT Sports NW

The Washington Nationals (+220) visit T-Mobile Park to take on the Seattle Mariners (-275) on Tuesday, August 23, 2022. First pitch is scheduled for 10:10pm EDT in Seattle.

The Mariners are betting favorites in this MLB matchup, with the run line sitting at -1.5 (-120).

The Nationals vs Mariners Over/Under is 7 total runs for the game.

So far this season, the Nationals are 40-80 against the spread (ATS), while the Mariners are 61-58 ATS.

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

SpreadOver / UnderMoneyline
Nationals+1.5 +100O 7 +100+220
Mariners -1.5 -120U 7 -120-275

Nationals vs Mariners Prediction for Today’s Game

Based on recent trends the model predicts the Mariners will win Tuesday‘s matchup with 67.8% confidence.

This prediction factors in starting pitchers, recent team and player hitting performances, the last 5 games for both the Nationals and Mariners and up-to-date player injuries.


Looking for a risk-free bet up to $1,000? Bet now on Mariners vs Nationals and all MLB games with BetMGM


Best Nationals Player Prop Bets Today

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

  • Lane Thomas has hit the Singles Over in 20 of his last 27 away games (+16.15 Units / 58% ROI)
  • Joey Meneses has hit the Hits Over in 13 of his last 14 games (+11.25 Units / 40% ROI)
  • Lane Thomas has hit the Hits Over in 22 of his last 28 away games (+11.25 Units / 22% ROI)
  • Joey Meneses has hit the Singles Over in 12 of his last 14 games (+10.65 Units / 72% ROI)
  • Lane Thomas has hit the Total Bases Over in 19 of his last 28 away games (+9.85 Units / 25% ROI)

Best Mariners Player Prop Best Bets Today

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

  • Eugenio Suarez has hit the Runs Under in 36 of his last 46 games at home (+18.95 Units / 23% ROI)
  • Mitch Haniger has hit the Hits Over in 16 of his last 17 games (+13.60 Units / 40% ROI)
  • Adam Frazier has hit the Total Bases Over in 25 of his last 38 games (+12.65 Units / 22% ROI)
  • Mitch Haniger has hit the Singles Over in 13 of his last 16 games (+12.50 Units / 78% ROI)
  • Eugenio Suarez has hit the Hits Over in 58 of his last 88 games (+11.55 Units / 8% ROI)
  • The Washington Nationals have hit the 1st Five Innings (F5) Total Over in 63 of their last 110 games (+15.00 Units / 12% ROI)
  • The Washington Nationals have covered the 1st Five Innings (F5) Run Line in their last 6 away games (+8.65 Units / 143% ROI)
  • The Washington Nationals have hit the 1st Five Innings (F5) Moneyline in 3 of their last 6 away games (+2.10 Units / 35% ROI)
  • The Seattle Mariners have hit the 1st Five Innings (F5) Total Over in 13 of their last 19 games (+6.50 Units / 31% ROI)
  • The Seattle Mariners have covered the 1st Five Innings (F5) Run Line in 25 of their last 42 games (+5.30 Units / 11% ROI)

Nationals Against the Spread (ATS) Record

Against the spread this MLB season, the Nationals have gone 51-69 against the Run Line (-26.25 Units / -17.89% ROI).

  • 40-80 when betting on the Moneyline for -20.1 Units / -16.17% ROI
  • 60-53 when betting on the total runs Over for +1.8 Units / 1.35% ROI
  • 53-60 when betting on the total runs Under for -12.3 Units / -9.37% ROI

Mariners Against the Spread (ATS) Record

Against the spread this MLB season, the Nationals have gone 61-58 against the Run Line (-6.05 Units / -3.8% ROI).

  • 65-54 when betting on the Moneyline for +11.5 Units / 8.05% ROI
  • 58-55 when betting on the total runs Over for -1.7 Units / -1.3% ROI
  • 55-58 when betting on the total runs Under for -8.4 Units / -6.38% ROI

Erick Fedde has a strike rate of just 52% (790/1,508) when ahead in the count since the start of last season — lowest in MLB among starting pitchers with at least 140 total IP; League Avg: 62% — 0 Percentile.

Erick Fedde has a strike rate of just 52% (925/1,792) when ahead in the count since the start of 2020 — lowest in MLB among starting pitchers with at least 170 total IP; League Avg: 62% — 0 Percentile.

Erick Fedde has allowed a slugging percentage of just .154 (6 Total Bases / 39 ABs) on low fastballs this season — best in MLB among starting pitchers with at least 59 total IP; League Avg: .426 — 100th Percentile.

Erick Fedde has a strike rate of just 61% (1,215/2,006) against right-handed batters since the start of last season — 3rd lowest in MLB among starting pitchers with at least 140 total IP; League Avg: 65% — second Percentile.

Robert Ray: Mariners Starting Pitcher Stats & Trends

Robbie Ray has thrown inside pitches 44% of the time (490/1,115) when behind in the count since the start of last season — highest among qualified SPs in MLB; League Avg: 30% — 100th Percentile.

Robbie Ray has walked 48 of 477 right-handed batters (10%) this season — highest among qualified SPs in MLB; League Avg: 6% — first Percentile.

Robbie Ray has thrown inside pitches 48% of the time (837/1,724) with two-strikes since the start of last season — highest among qualified SPs in MLB; League Avg: 31% — 100th Percentile.

Robbie Ray has had third base stolen on him 11 times since the start of last season — most in MLB — 100th Percentile.

Nationals Keys to the Game vs. the Mariners

The Nationals are just 19-44 (.302) at home this season — lowest in MLB; League Avg: .529.

The Nationals are just 67-107 (.385) at home since the 2020 season — lowest in MLB; League Avg: .537.

The Nationals are just 105-24 (.814) when leading entering the 7th inning since the 2020 season — 3rd lowest in MLB; League Avg: .875.

The Nationals are just 41-69 (.373) when allowing 5 or more extra base hits this season — lowest in MLB; League Avg: .533.

Mariners Keys to the Game vs. the Nationals

The Mariners are 49-0 (1.000) when leading entering the 8th inning this season — best in MLB; League Avg: .914.

The Mariners are 46-7 (.868) when scoring 5 or more runs this season — 7th best in MLB; League Avg: .799.

The Mariners are 26-7 (.788) when hitting 2 or more home runs this season — 9th best in MLB; League Avg: .710.

The Mariners are 33-5 (.868) when totaling 10 or more hits this season — 4th best in MLB; League Avg: .725.

The Nationals have a winning percentage of just 38% at home since the start of last season — lowest in MLB; League Avg: 53%.

Nationals hitters have grounded into 271 double plays in 2,088 opportunities (13%) since the start of last season — highest in MLB; League Avg: 10%.

Nationals hitters have just 617 strikeouts in 3,093 PA’s (20%) against RHP this season — tied for 2nd best in MLB; League Avg: 22%.

Nationals hitters have an OBP of just .241 (85 PA’s) during extra innings since the start of last season — lowest in MLB; League Avg: .369.

Mariners hitters are slugging just .163 on pitches out of the zone since the start of last season — lowest in MLB; League Avg: .210.

Mariners hitters are slugging just .168 on pitches out of the zone since the start of 2020 — lowest in MLB; League Avg: .210.

Mariners hitters have drawn 143 walks in 1,317 PA’s (11%) against LHP this season — best in MLB; League Avg: 8%.

The Mariners are batting just .298 on the first pitch of at-bats since the start of 2020 — lowest in MLB; League Avg: .340.

The Nationals have won just 21% of home games in which their opponents scored first since the start of last season — lowest in MLB; League Avg: 36%.

Opponents have a groundball batting average of .303 against Nationals pitchers with runners on base this season — 2nd highest in MLB; League Avg: .247.

Nationals pitchers have allowed innings of 3+ runs in 8% of innings played this season — tied for highest in MLB; League Avg: 6%.

The Nationals have won just 20% of games in which their opponents scored first since the start of last season — lowest in MLB; League Avg: 32%.

Opponents have a groundball rate of just 39% against Mariners pitchers this season — lowest in MLB; League Avg: 43%.

Opponents have a groundball rate of just 40% against Mariners pitchers since the start of last season — lowest in MLB; League Avg: 43%.

Opponents have a groundball rate of just 40% against Mariners pitchers since the start of 2020 — lowest in MLB; League Avg: 43%.

Mariners pitchers have a strikeout rate of 49% with two-strikes this month (19 games) — best in MLB; League Avg: 42%.

Mariners vs. Nationals Injuries Tonight That May Affect Prop Bets 

  • Thomas Murphy (Mariners): Shoulder, D60
  • Casey Sadler (Mariners): Shoulder, D60
  • Evan White (Mariners): Hernia, D60
  • Ryan Borucki (Mariners): Forearm, D15
  • Matthew Boyd (Mariners): Elbow, D60
  • Louis Voit (Nationals): Foot, Day-to-Day
  • Joseph Ross (Nationals): Elbow, D60
  • Erick Fedde (Nationals): Shoulder, D15
  • MacKenzie Gore (Nationals): Elbow, D15
  • Luis García (Nationals): Groin, D10
  • Stephen Strasburg (Nationals): Ribs, D60
  • Seth Romero (Nationals): Calf, D60
  • William Harris (Nationals): Pectoral, D60
  • Jackson Tetreault (Nationals): Shoulder, D60
  • Tanner Rainey (Nationals): Elbow, D60
  • Evan Lee (Nationals): Flexor, D60
  • Carter Kieboom (Nationals): Forearm, D60
  • Yadiel Hernandez (Nationals): Left Calf, D10
  • Sean Doolittle (Nationals): Elbow, D60

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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.