Marlins vs Nationals Prediction, Odds, Moneyline, Spread & Over/Under for Sept. 9

Odds updated as of 9:12 a.m.

The Tuesday schedule in MLB includes a matchup between the Miami Marlins and the Washington Nationals.

Here's what you need to know before checking out today's MLB odds and spreads on FanDuel Sportsbook.

Marlins vs Nationals Game Info

• Miami Marlins (66-78) vs. Washington Nationals (59-84)
• Date: Tuesday, September 9, 2025
• Time: 6:40 p.m. ET
• Venue: loanDepot park -- Miami, Florida
• Coverage: FDSFL and MASN2

Marlins vs Nationals Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: MIA: (-126) | WSH: (+108)
• Spread: MIA: -1.5 (+162) | WSH: +1.5 (-200)
• Total: 9 -- Over: (-100) | Under: (-122)

Marlins vs Nationals Probable Starting Pitchers

Probable Pitchers: Adam Mazur (Marlins) - 0-2, 5.74 ERA vs Mitchell Parker (Nationals) - 7-15, 5.87 ERA

The probable starters are Adam Mazur (0-2) for the Marlins and Mitchell Parker (7-15) for the Nationals. When Mazur starts, his team is 1-2-0 against the spread this season. This will be Mazur's first start this season with his team as the moneyline favorite. The Nationals have an 11-14-0 ATS record in Parker's 25 starts that had a set spread. The Nationals have a 10-12 record in Parker's 22 starts this season when they were the moneyline underdog.

Marlins vs Nationals Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Marlins win (59.9%)

Marlins vs Nationals Moneyline

• Looking at the moneyline for Nationals-Marlins, Washington is the underdog at +108, and Miami is -126 playing at home.

Marlins vs Nationals Spread

• The Marlins are hosting the Nationals and are favored by 1.5 runs on the spread. The Marlins are +162 to cover the runline, with the Nationals being -200.

Marlins vs Nationals Over/Under

• Marlins versus Nationals on Sept. 9 has an over/under of 9 runs, with the odds on the over -100 and the under set at -122.

Bet on Miami Marlins vs. Washington Nationals on FanDuel today!

Marlins vs Nationals Betting Trends

• The Marlins have won in eight, or 36.4%, of the 22 contests they have been named as odds-on favorites in this year.
• This season Miami has been victorious four times in 16 chances when named as a favorite of at least -126 on the moneyline.
• The Marlins and their opponents have hit the over in 68 of their 140 games with a total set by oddsmakers this season.
• The Marlins are 79-61-0 against the spread in their 140 games that had a posted line this season.
• The Nationals have won 44% of the games this season they were the underdog on the moneyline (51-65).
• Washington has gone 44-56 when playing as a moneyline underdog with odds of +108 or longer (44%).
• The Nationals have combined with opponents to hit the over on the total 73 times this season for a 73-57-7 record against the over/under.
• The Nationals have collected a 69-68-0 record against the spread this season (covering 50.4% of the time).

Marlins Player Leaders

• Otto Lopez is hitting .249 with 18 doubles, 14 home runs and 44 walks. He has an on-base percentage of .316 and a slugging percentage of .377.
• Among the qualifying batters in the majors, his batting average ranks 93rd, his on-base percentage ranks 101st, and he is 129th in slugging.
• Lopez hopes to build on a two-game hitting streak in this matchup. During his last five outings he is hitting .353 with two home runs and four RBIs.
• Xavier Edwards has an OPS of .686, fueled by an OBP of .337 and a team-best slugging percentage of .349 this season. He's batting .279.
• Among all qualifying players, he is 24th in batting average, 59th in on-base percentage and 142nd in slugging percentage.
• Agustin Ramirez has 106 hits this season and has a slash line of .226/.284/.412.
• Eric Wagaman has nine home runs, 46 RBI and a batting average of .240 this season.
• Wagaman has hit safely in four games in a row. During his last five outings he is hitting .308 with two doubles, a walk and an RBI.

Nationals Player Leaders

• C.J. Abrams has 32 doubles, five triples, 17 home runs and 34 walks while batting .267. He's slugging .449 with an on-base percentage of .329.
• Including all qualified hitters in the majors, he ranks 49th in batting average, 75th in on-base percentage and 57th in slugging percentage.
• Abrams takes a five-game hitting streak into this game. During his last five outings he is hitting .300 with four doubles.
• James Wood has 138 hits with a .355 on-base percentage while slugging .471. Those stats all lead his team. He also has a batting average of .258.
• Including all qualifying hitters, he ranks 80th in batting average, 30th in on-base percentage and 40th in slugging percentage.
• Luis Garcia is batting .263 with 27 doubles, a triple, 13 home runs and 26 walks.
• Josh Bell has 13 doubles, a triple, 19 home runs and 54 walks while batting .232.

Marlins vs Nationals Head to Head

• 9/8/2025: 15-7 WSH (Favorite: Marlins, Spread: -1.5, Total: 8.5, Favorite Moneyline: -132, Underdog Moneyline: +112)
• 9/3/2025: 10-5 WSH (Favorite: Marlins, Spread: -1.5, Total: 9, Favorite Moneyline: -152, Underdog Moneyline: +128)
• 9/2/2025: 5-2 WSH (Favorite: Nationals, Spread: -1.5, Total: 9, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 9/1/2025: 2-0 WSH (Favorite: Nationals, Spread: -1.5, Total: 9, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 6/15/2025: 3-1 MIA (Favorite: Nationals, Spread: -1.5, Total: 7.5, Favorite Moneyline: -158, Underdog Moneyline: +134)
• 6/14/2025: 4-3 MIA (Favorite: Nationals, Spread: -1.5, Total: 9, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 6/13/2025: 11-9 MIA (Favorite: Nationals, Spread: -1.5, Total: 8.5, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 4/13/2025: 11-4 MIA (Favorite: Nationals, Spread: -1.5, Total: 8, Favorite Moneyline: -148, Underdog Moneyline: +126)
• 4/12/2025: 7-6 MIA (Favorite: Marlins, Spread: -1.5, Total: 7.5, Favorite Moneyline: -142, Underdog Moneyline: +120)
• 4/11/2025: 7-4 WSH (Favorite: Nationals, Spread: -1.5, Total: 8, Favorite Moneyline: -112, Underdog Moneyline: -104)

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