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MLB Prop Bets: Washington Nationals vs Miami Marlins (August 31, 2026)

The Miami Marlins (69-68) face the Washington Nationals (65-74) at Nationals Park on Monday at 6:45pm (ET). Let's take a look at the MLB Prop Bets for the matchup. Ryan Gusto is the probable pitcher for the Marlins, while Will Dion is the probable pitcher for the Nationals. The Marlins are favored to win at -123, while the Nationals are at +102. The total runs line is set at 9.0, with OVER at +102 and UNDER at -123.

  • The Marlins (+138) have a 68-69 Run Line record this season, while the Nationals (-167) hold a record of 80-59.
  • The Marlins have a 66-68-3 O/U record this season (meaning 66 games have gone over the total runs line, 68 have gone under and three have resulted in a push). The Nationals have a 71-62-6 O/U record.

Scoring Insights

  • The Marlins are averaging 4.3 runs per game this season (20th in the league). Comparatively, the Nationals are averaging +0.8 more at 5.2 runs (2nd).
  • In the field, the Marlins are allowing 4.2 runs per game this season (10th in the league), while the Nationals are allowing an average of 5.1 runs (28th).

Let's take a look at how these teams perform in some other key statistical areas.

Batting Insights:

Batting Average

  • Looking at their batting averages this season, the Marlins are at .247 (ranking 11th in the Major leagues), while the Nationals are batting .248 (9th).

Home Runs

  • In terms of total home runs this season, the Nationals are one of the best in the Major Leagues, hitting 190 to rank 1st. Alternatively, the Marlins are at the opposite end of the home run standings, hitting just 137 (25th).

Runs Batted In

  • Finally, looking at their runs batted in, the Marlins have recorded 566 RBIs to rank 20th in the MLB this season. Comparatively, the Nationals have recorded 683 RBIs to rank 2nd.

Pitching Insights:

Earned Run Average

  • The Nationals have an earned run average of 4.67 this season (27th in the Majors), while The Marlins have an ERA of 3.90 (9th).

Strikeouts

  • Turning our attention to total strikeouts, the Marlins have recorded 1116 this season, ranking 18th in the MLB. Meanwhile, the Nationals rank 25th for total strikeouts, recording 1081.

Opponent Batting Average

  • Opponents are batting an average of only .230 against the Marlins this season (4th in the Major Leagues). Alternatively, the Nationals' opponents are at .255 (27th).

First Innings Moneyline

  • Here are their first innings moneyline records in 2026.
    Total Home Road Favorite Underdog Neutral Last 10
    Marlins 27-24-86 15-10-44 12-14-42 14-7-44 13-17-42 0-0-0 3-0-7
    Nationals 38-29-72 22-10-38 16-19-34 12-4-18 26-25-54 0-0-0 1-2-7

Lead After Three Innings

The Marlins are -115 to lead after three innings, while the Nationals are -115.

  • Here are their records after the first three innings in 2026.
    Total Home Road Favorite Underdog Neutral Last 10
    Marlins 53-50-34 33-18-18 20-32-16 29-16-20 24-34-14 0-0-0 4-4-2
    Nationals 57-44-38 34-17-19 23-27-19 18-5-11 39-39-27 0-0-0 4-2-4

NRFI/YRFI

The NRFI market is paying -115 and the YRFI is paying -115.

  • The NRFI is 79-58 in Marlins games this season. The Nationals have a 69-70 NRFI record.

Last Time They Met

The Marlins recorded a 6-2 victory over the Nationals at Nationals Park yesterday. Despite being on the wrong side of that result, Jorbit Vivas did what he could, hitting a home run.