Nationals vs Marlins Prediction, Odds, Moneyline, Spread & Over/Under for Aug. 29

Odds updated as of 4:12 p.m.

MLB action on Saturday includes the Miami Marlins taking on 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 (68-67) vs. Washington Nationals (64-73)
• Date: Saturday, August 29, 2026
• Time: 4:05 p.m. ET
• Venue: Nationals Park -- Washington, District of Columbia
• Coverage: 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 -- Over: (-105) | Under: (-115)

Marlins vs Nationals Probable Starting Pitchers

Probable Pitchers: Sandy Alcantara (Marlins) - 13-8, 3.38 ERA vs Cade Cavalli (Nationals) - 12-5, 3.21 ERA

This contest's pitching matchup is set, as the Marlins will send Sandy Alcantara (13-8) to the mound, while Cade Cavalli (12-5) will get the nod for the Nationals. Alcantara and his team are 16-12-0 ATS this season when he starts. Alcantara's team has been victorious in 71.4% of the games he's started as the moneyline favorite with a record of 10-4. When Cavalli starts, the Nationals have gone 15-11-0 against the spread. The Nationals have been the moneyline underdog in 17 of Cavalli's starts this season, and they went 7-10 in those matchups.

Marlins vs Nationals Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Nationals win (50.8%)

Marlins vs Nationals Moneyline

• Washington is a +100 underdog on the moneyline, while Miami is a -108 favorite on the road.

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

• An over/under of 8 has been set for Marlins-Nationals on Aug. 29, with the over being -105 and the under -115.

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Marlins vs Nationals Betting Trends

• The Marlins have won in 38, or 65.5%, of the 58 contests they have been named as odds-on favorites in this year.
• This year Miami has won 40 of 61 games when listed as at least -108 on the moneyline.
• The Marlins and their opponents have gone over in 64 of their 133 games with a total set by sportsbooks this season.
• The Marlins have an against the spread record of 68-65-0 in 133 games with a line this season.
• The Nationals have won 45 of the 103 games they were listed as the moneyline underdog this season (43.7%).
• Washington has a record of 40-53 in games it has played as a moneyline underdog with odds of +100 or longer (43%).
• In the 133 games bookmakers have set an over/under for the Nationals, they have combined with opponents to go over the total 68 times (68-60-5).
• The Nationals have collected a 74-59-0 record ATS this season (covering 55.6% of the time).

Marlins Player Leaders

• Otto Lopez leads Miami with 161 hits and a team-best slugging percentage of .443. He's batting .307 with an on-base percentage of .343.
• He ranks fourth in batting average, 53rd in on-base percentage, and 49th in slugging among all qualified batters in the majors.
• Lopez hopes to build on a four-game hitting streak in this matchup. In his last five games he is batting .316 with a double, two walks and two RBIs.
• Xavier Edwards leads Miami with an OBP of .363 this season while batting .285 with 64 walks and 59 runs scored. He's slugging .381.
• Among all qualified hitters, he ranks 18th in batting average, 27th in on-base percentage and 107th in slugging percentage.
• Edwards heads into this matchup looking to extend his six-game hit streak. During his last 10 outings he is hitting .300 with a double, three walks and five RBIs.
• Javier Sanoja is batting .280 with a .422 slugging percentage and 51 RBI this year.
• Sanoja enters this matchup with three games in a row with at least one hit. In his last five games he is hitting .300 with two doubles, two walks and an RBI.
• Jakob Marsee has been key for Miami with 90 hits, an OBP of .329 plus a slugging percentage of .326.
• Marsee brings a two-game hitting streak into this matchup. During his last five outings he is hitting .333 with a double, a home run, two walks and an RBI.

Nationals Player Leaders

• C.J. Abrams has a .515 slugging percentage, which leads the Nationals. He's batting .272 with an on-base percentage of .349.
• Including all the qualifying hitters in MLB, his batting average puts him 40th, his on-base percentage ranks 46th, and he is 12th in slugging.
• Daylen Lile is batting .251 with 25 doubles, six triples, 18 home runs and 33 walks. He's slugging .427 with an on-base percentage of .302.
• Including all qualifying hitters, he is 77th in batting average, 114th in on-base percentage and 64th in slugging percentage.
• Jacob Young has 19 doubles, three triples, 10 home runs and 29 walks while batting .247.
• Keibert Ruiz has 22 doubles, nine home runs and 16 walks while hitting .281.

Marlins vs Nationals Head to Head

• 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)
• 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)

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