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

Odds updated as of 7:12 a.m.

The Miami Marlins are among the MLB teams in action on Tuesday, versus the Washington Nationals.

We've got you covered, in terms of the vital info about this matchup before you take a look at the 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: (-134) | WSH: (+114)
• Spread: MIA: -1.5 (+158) | WSH: +1.5 (-192)
• Total: 9 -- Over: (-105) | Under: (-115)

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 Marlins will call on Adam Mazur (0-2) versus the Nationals and Mitchell Parker (7-15). Mazur and his team are 1-2-0 ATS this season when he starts. This will be Mazur's first start this season with his team as the moneyline favorite. The Nationals are 11-14-0 ATS in Parker's 25 starts that had a set spread. The Nationals are 10-12 in Parker's 22 starts this season that they were the underdog on the moneyline.

Marlins vs Nationals Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Marlins win (61.3%)

Marlins vs Nationals Moneyline

• The Marlins vs Nationals moneyline has Miami as a -134 favorite, while Washington is a +114 underdog on the road.

Marlins vs Nationals Spread

• The Nationals are at +1.5 on the runline against the Marlins. The Nationals are -192 to cover the spread, and the Marlins are +158.

Marlins vs Nationals Over/Under

• The over/under for Marlins-Nationals on Sept. 9 is 9. The over is -105, and the under is -115.

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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 one time in 11 chances when named as a favorite of at least -134 on the moneyline.
• The Marlins' games have gone over the total in 68 of their 140 opportunities.
• In 140 games with a line this season, the Marlins have a mark of 79-61-0 against the spread.
• The Nationals have won 51 of the 116 games they were the moneyline underdog this season (44%).
• Washington is 40-55 (winning 42.1% of its games) when it has played as a moneyline underdog of +114 or longer.
• The Nationals have had an over/under set by bookmakers 137 times, and have combined with opponents to go over the total in 73 of those games (73-57-7).
• The Nationals have covered 50.4% of their games this season, going 69-68-0 against the spread.

Marlins Player Leaders

• Otto Lopez is batting .249 with 18 doubles, 14 home runs and 44 walks. He has an on-base percentage of .316 while slugging .377.
• Among all qualified hitters in MLB, his batting average ranks 93rd, his on-base percentage ranks 101st, and he is 129th in slugging.
• Lopez will look for his third straight game with a hit in this contest. 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.
• He ranks 24th in batting average, 59th in on-base percentage and 142nd in slugging among qualifying hitters.
• Agustin Ramirez has collected 106 base hits, an OBP of .284 and a slugging percentage of .412 this season.
• Eric Wagaman is batting .240 with a .291 OBP and 46 RBI for Miami this season.
• Wagaman takes a four-game hitting streak into this game. During his last five outings he is batting .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 hitting .267. He's slugging .449 with an on-base percentage of .329.
• Including all the qualifying players in the majors, his batting average is 49th, his on-base percentage is 75th, and he is 57th in slugging.
• Abrams enters this game on a five-game hitting streak. In his last five games he is hitting .300 with four doubles.
• James Wood leads his team with 138 hits and a .355 on-base percentage, with a team-best .471 slugging percentage. He has a batting average of .258.
• Including all qualified hitters, his batting average puts him 80th, his on-base percentage ranks 30th, and he is 40th in slugging.
• Luis Garcia is hitting .263 with 27 doubles, a triple, 13 home runs and 26 walks.
• Josh Bell is hitting .232 with 13 doubles, a triple, 19 home runs and 54 walks.

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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