Marlins vs Nationals Prediction, Odds, Moneyline, Spread & Over/Under for Aug. 31

Odds updated as of 11:12 a.m.

The Miami Marlins will take on the Washington Nationals in MLB action on Monday.

Before you do any MLB betting on this game at FanDuel Sportsbook, here's what you need to know.

Marlins vs Nationals Game Info

• Miami Marlins (69-68) vs. Washington Nationals (65-74)
• Date: Monday, August 31, 2026
• Time: 6:45 p.m. ET
• Venue: Nationals Park -- Washington, District of Columbia
• Coverage: Fox Sports 1, Nationals.TV, and Marlins.TV

Marlins vs Nationals Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: MIA: (-108) | WSH: (+100)
• Spread: MIA: -1.5 (+146) | WSH: +1.5 (-176)
• Total: 8.5 -- Over: (-115) | Under: (-105)

Marlins vs Nationals Probable Starting Pitchers

Probable Pitchers: Ryan Gusto (Marlins) - 1-3, 3.98 ERA vs Will Dion (Nationals) - 1-1, 3.67 ERA

This contest's pitching matchup is set, as the Marlins will send Ryan Gusto (1-3) to the mound, while Will Dion (1-1) will take the ball for the Nationals. Gusto's team is 7-6-0 against the spread in his starts this season. Gusto's team has been victorious in 50% of the games he's started as the moneyline favorite with a record of 2-2. Dion did not pitch as a moneyline underdog a season ago.

Marlins vs Nationals Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Marlins win (50.4%)

Marlins vs Nationals Moneyline

• Looking at the moneyline for Marlins-Nationals, Miami is the favorite at -108, and Washington is +100 playing at home.

Marlins vs Nationals Spread

• The Nationals are +1.5 on the run line against the Marlins. The Nationals are -176 to cover, and the Marlins are +146.

Marlins vs Nationals Over/Under

• The over/under for the Marlins versus Nationals contest on Aug. 31 has been set at 8.5, with -115 odds on the over and -105 odds on the under.

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Marlins vs Nationals Betting Trends

• The Marlins have been victorious in 38, or 64.4%, of the 59 contests they have been chosen as favorites in this season.
• Miami has a record of 40-22 when favored by -108 or more this year.
• The Marlins and their opponents have gone over in 65 of their 135 games with a total set by sportsbooks this season.
• The Marlins have an against the spread record of 69-66-0 in 135 games with a line this season.
• The Nationals have won 46 of the 104 games they were listed as the moneyline underdog this season (44.2%).
• Washington has a 40-53 record (winning 43% of its games) when it has played as a moneyline underdog of +100 or longer.
• The Nationals have combined with opponents to go over the total 69 times this season for a 69-61-5 record against the over/under.
• The Nationals have a 75-60-0 record ATS this season.

Marlins Player Leaders

• Otto Lopez leads Miami in slugging percentage (.444) and total hits (163) this season. He's batting .305 with an on-base percentage of .340.
• Among all qualifying hitters in baseball, his batting average ranks fifth, his on-base percentage ranks 57th, and he is 50th in slugging.
• Lopez will look for his seventh straight game with a hit in this contest. In his last 10 games he is batting .275 with a double, a home run, three walks and seven RBIs.
• Xavier Edwards leads Miami with an OBP of .361 this season while batting .282 with 65 walks and 59 runs scored. He's slugging .376.
• He is 21st in batting average, 29th in on-base percentage and 111th in slugging among qualifying hitters.
• Javier Sanoja is batting .278 with a .417 slugging percentage and 51 RBI this year.
• Jakob Marsee is batting .208 with a .329 OBP and 31 RBI for Miami this season.

Nationals Player Leaders

• C.J. Abrams has racked up a team-high .506 slugging percentage. He's batting .267 with an on-base percentage of .343.
• Including all qualified players in the big leagues, his batting average puts him 50th, his on-base percentage ranks 49th, and he is 12th in slugging.
• Daylen Lile has 26 doubles, six triples, 18 home runs and 35 walks while batting .252. He's slugging .428 with an on-base percentage of .304.
• Including all qualifying hitters, he is 77th in batting average, 114th in on-base percentage and 62nd in slugging percentage.
• Jacob Young is batting .248 with 19 doubles, three triples, 10 home runs and 29 walks.
• Keibert Ruiz is batting .280 with 22 doubles, nine home runs and 16 walks.

Marlins vs Nationals Head to Head

• 8/30/2026: 6-2 MIA (Favorite: Nationals, Spread: -1.5, Total: 9.5, Favorite Moneyline: -118, Underdog Moneyline: +110)
• 8/29/2026: 5-4 WSH (Favorite: Marlins, Spread: -1.5, Total: 8, Favorite Moneyline: -108, Underdog Moneyline: +100)
• 8/28/2026: 9-2 WSH (Favorite: Marlins, Spread: -1.5, Total: 8.5, Favorite Moneyline: -134, Underdog Moneyline: +124)
• 8/23/2026: 6-2 MIA (Favorite: Marlins, Spread: -1.5, Total: 8.5, Favorite Moneyline: -158, Underdog Moneyline: +146)
• 8/22/2026: 4-2 MIA (Favorite: Marlins, Spread: -1.5, Total: 7.5, Favorite Moneyline: -180, Underdog Moneyline: +166)
• 8/21/2026: 3-2 MIA (Favorite: Marlins, Spread: -1.5, Total: 7.5, Favorite Moneyline: -146, Underdog Moneyline: +136)
• 6/3/2026: 4-1 MIA (Favorite: Nationals, Spread: -1.5, Total: 8, Favorite Moneyline: -108, Underdog Moneyline: -108)
• 6/2/2026: 7-3 MIA (Favorite: Nationals, Spread: -1.5, Total: 9, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 6/1/2026: 7-3 MIA (Favorite: Nationals, Spread: -1.5, Total: 8.5, Favorite Moneyline: -138, Underdog Moneyline: +118)
• 5/10/2026: 5-2 MIA (Favorite: Marlins, Spread: -1.5, Total: 8.5, Favorite Moneyline: -130, Underdog Moneyline: +110)

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