Marlins vs Nationals Prediction, Odds, Moneyline, Spread & Over/Under for Aug. 23

Odds updated as of 1:12 p.m.

The Miami Marlins are among the MLB squads playing on Sunday, versus the Washington Nationals.

All the information you need to make smart bets on this matchup at FanDuel Sportsbook can be found below. Check out all of the latest MLB betting lines here.

Marlins vs Nationals Game Info

• Miami Marlins (66-64) vs. Washington Nationals (61-70)
• Date: Sunday, August 23, 2026
• Time: 1:40 p.m. ET
• Venue: loanDepot park -- Miami, Florida
• Coverage: Marlins.TV and Nationals.TV

Marlins vs Nationals Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: MIA: (-158) | WSH: (+146)
• Spread: MIA: -1.5 (+126) | WSH: +1.5 (-152)
• Total: 8.5 -- Over: (+100) | Under: (-122)

Marlins vs Nationals Probable Starting Pitchers

Probable Pitchers: Janson Junk (Marlins) - 6-8, 4.37 ERA vs Jackson Kent (Nationals) - 0-1, 9.39 ERA

The probable starters are Janson Junk (6-8) for the Marlins and Jackson Kent (0-1) for the Nationals. Junk's team is 9-9-0 against the spread in his starts this season. Junk's team has been victorious in 57.1% of the games he's started as the moneyline favorite with a record of 4-3. Kent has started two games with set spreads, and the Nationals failed to cover in both opportunities. The Nationals were the moneyline underdog for two Kent starts this season -- they lost both.

Marlins vs Nationals Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Marlins win (58.7%)

Marlins vs Nationals Moneyline

• The moneyline numbers for Marlins vs. Nationals reveal Miami as the favorite (-158) and Washington as the underdog (+146) on the road.

Marlins vs Nationals Spread

• The Marlins are hosting the Nationals and are favored by 1.5 runs (+126 to cover) on the runline. Washington is -152 to cover.

Marlins vs Nationals Over/Under

• Marlins versus Nationals on Aug. 23 has an over/under of 8.5 runs, with the odds on the over +100 and the under set at -122.

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Marlins vs Nationals Betting Trends

• The Marlins have come away with 37 wins in the 56 contests they have been listed as the favorites in this season.
• Miami has a record of 6-1 in contests when oddsmakers favor them by -158 or more on the moneyline.
• The Marlins and their opponents have gone over the total this season in 62 of their 128 opportunities.
• The Marlins have an against the spread mark of 66-62-0 in 128 games with a line this season.
• The Nationals are 44-57 in games they were listed as the moneyline underdog (winning 43.6% of those games).
• Washington has a record of 10-20 when playing as a moneyline underdog with odds of +146 or longer (33.3%).
• The Nationals have played in 127 games with an over/under set, and have combined with their opponents to go over the total 65 times (65-57-5).
• The Nationals have put together a 71-56-0 record against the spread this season (covering 55.9% of the time).

Marlins Player Leaders

• Otto Lopez leads Miami in slugging percentage (.446) and total hits (155) this season. He's batting .307 with an on-base percentage of .342.
• Among qualifying hitters in the majors, his batting average ranks fifth, his on-base percentage ranks 57th, and he is 47th in slugging.
• Lopez hopes to build on a three-game hitting streak in this matchup. During his last five outings he is batting .278 with three walks and four RBIs.
• Xavier Edwards leads Miami in OBP (.365) this season, fueled by 135 hits. He's batting .285 while slugging .383.
• He is 19th in batting average, 22nd in on-base percentage and 111th in slugging among qualifying batters.
• Javier Sanoja has collected 93 base hits, an OBP of .317 and a slugging percentage of .423 this season.
• Jakob Marsee has eight home runs, 30 RBI and a batting average of .209 this season.
• Marsee has safely hit in two straight games. During his last five outings he is hitting .200 with a triple, a home run, four walks and an RBI.

Nationals Player Leaders

• CJ Abrams has a .530 slugging percentage, which leads the Nationals. He's batting .279 with an on-base percentage of .354.
• Including all the qualifying hitters in the majors, his batting average ranks 26th, his on-base percentage ranks 41st, and he is 10th in slugging.
• Daylen Lile has 23 doubles, five triples, 15 home runs and 29 walks while batting .242. He's slugging .400 with an on-base percentage of .290.
• His batting average ranks 97th among all qualified players, his on-base percentage ranks 129th, and he is 94th in slugging.
• Jacob Young is batting .246 with 16 doubles, three triples, 10 home runs and 27 walks.
• Keibert Ruiz is hitting .279 with 21 doubles, eight home runs and 14 walks.

Marlins vs Nationals Head to Head

• 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)
• 5/9/2026: 8-7 MIA (Favorite: Marlins, Spread: -1.5, Total: 8.5, Favorite Moneyline: -164, Underdog Moneyline: +138)
• 5/8/2026: 3-2 WSH (Favorite: Marlins, Spread: -1.5, Total: 8.5, Favorite Moneyline: -136, Underdog Moneyline: +116)
• 9/11/2025: 5-0 MIA (Favorite: Marlins, Spread: -1.5, Total: 8, Favorite Moneyline: -126, Underdog Moneyline: +108)
• 9/10/2025: 8-3 MIA (Favorite: Marlins, Spread: -1.5, Total: 8.5, Favorite Moneyline: -156, Underdog Moneyline: +132)

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