Phillies vs Marlins Prediction, Odds, Moneyline, Spread & Over/Under for Aug. 18

Odds updated as of 2:12 a.m.

Tuesday's slate in the MLB includes a matchup between the Philadelphia Phillies and the Miami Marlins.

Before checking out the MLB betting lines on FanDuel Sportsbook, we've got you covered, in terms of the vital info regarding this matchup.

Phillies vs Marlins Game Info

• Philadelphia Phillies (68-58) vs. Miami Marlins (64-62)
• Date: Tuesday, August 18, 2026
• Time: 6:40 p.m. ET
• Venue: Citizens Bank Park -- Philadelphia, Pennsylvania
• Coverage: NBCS-PH and Marlins.TV

Phillies vs Marlins Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: PHI: (-240) | MIA: (+198)
• Spread: PHI: -1.5 (-108) | MIA: +1.5 (-111)
• Total: 8 -- Over: (-115) | Under: (-105)

Phillies vs Marlins Probable Starting Pitchers

Probable Pitchers: Zack Wheeler (Phillies) - 10-4, 2.89 ERA vs Cade Gibson (Marlins) - 2-0, 5.61 ERA

The Phillies will call on Zack Wheeler (10-4) versus the Marlins and Cade Gibson (2-0). Wheeler and his team have a record of 10-7-0 against the spread when he starts. Wheeler's team is 10-2 this season when he starts and they are the moneyline favorite. Last season Gibson pitched in one game with a spread, which his team covered. Gibson's team was the moneyline underdog only one time in a game he pitched a season ago, and won.

Phillies vs Marlins Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Phillies win (60.2%)

Phillies vs Marlins Moneyline

• Looking at the moneyline for Phillies-Marlins, Philadelphia is the favorite at -240, and Miami is +198 playing on the road.

Phillies vs Marlins Spread

• The Phillies are hosting the Marlins and are favored by 1.5 runs (-108 to cover) on the runline. Miami is -111 to cover.

Phillies vs Marlins Over/Under

• A total of 8 runs has been set for the Phillies-Marlins game on Aug. 18, with the over available at -115 and the under at -105.

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Phillies vs Marlins Betting Trends

• The Phillies have been favorites in 90 games this season and have come away with the win 57 times (63.3%) in those contests.
• Philadelphia has not lost in six games this year when favored by -240 or better on the moneyline.
• The Phillies' games have gone over the total in 56 of their 122 opportunities.
• The Phillies have posted a record of 48-74-0 against the spread this season.
• The Marlins have been the underdog on the moneyline 67 total times this season. They've gone 26-41 in those games.
• When it has played as a moneyline underdog with odds of +198 or longer, Miami has a 1-2 record (winning just 33.3% of its games).
• The Marlins have had an over/under set by oddsmakers 124 times, and have combined with opponents to go over the total in 61 of those games (61-61-2).
• The Marlins have a 65-59-0 record against the spread this season (covering 52.4% of the time).

Phillies Player Leaders

• Bryce Harper leads Philadelphia with an OBP of .379 this season while batting .260 with 88 walks and 78 runs scored. He has a slugging percentage of .495.
• Among all qualified hitters in baseball, he is 64th in batting average, 10th in on-base percentage, and 20th in slugging.
• Harper will look for his sixth straight game with a hit in this matchup. In his last five games he is hitting .444 with a double, six walks and an RBI.
• Luis Arraez leads Philadelphia in slugging percentage (.431) thanks to 39 extra-base hits. He's batting .314 with an on-base percentage of .349.
• Among qualifying batters, his batting average ranks him second, his on-base percentage 47th, and his slugging percentage 64th.
• Arraez brings a five-game streak with at least one hit into this matchup. During his last five outings he is batting .318 with two doubles, a walk and four RBIs.
• Kyle Schwarber leads Philadelphia with 110 hits. He is batting .247 this season and 53 of his hits have gone for extra bases.
• Schwarber has logged a hit or more in two games in a row. During his last five outings he is hitting .182 with a double, two home runs, a walk and four RBIs.
• Bryson Stott is batting .266 with a .343 OBP and 57 RBI for Philadelphia this season.
• Stott enters this game on a nine-game hitting streak. In his last 10 outings he is batting .324 with a double, a home run, 10 walks and five RBIs.

Marlins Player Leaders

• Otto Lopez has accumulated a slugging percentage of .452, a team-best for the Marlins. He's batting .310 with an on-base percentage of .343.
• Including all qualified hitters in the big leagues, his batting average puts him third, his on-base percentage is 57th, and he is 47th in slugging.
• Xavier Edwards' .365 OBP leads his team. He has a batting average of .285 while slugging .386.
• Including all qualified hitters, his batting average places him 20th, his on-base percentage ranks 24th, and he is 110th in slugging.
• Javier Sanoja is hitting .272 with 26 doubles, two triples, five home runs and 19 walks.
• Jakob Marsee is batting .208 with 14 doubles, four triples, seven home runs and 60 walks.

Phillies vs Marlins Head to Head

• 8/17/2026: 6-5 PHI (Favorite: Phillies, Spread: -1.5, Total: 8.5, Favorite Moneyline: -245, Underdog Moneyline: +225)
• 7/29/2026: 8-6 MIA (Favorite: Phillies, Spread: -1.5, Total: 7.5, Favorite Moneyline: -172, Underdog Moneyline: +144)
• 7/28/2026: 1-0 MIA (Favorite: Marlins, Spread: -1.5, Total: 8, Favorite Moneyline: -134, Underdog Moneyline: +116)
• 7/27/2026: 8-7 MIA (Favorite: Phillies, Spread: -1.5, Total: 7.5, Favorite Moneyline: -205, Underdog Moneyline: +172)
• 6/17/2026: 12-4 MIA (Favorite: Phillies, Spread: -1.5, Total: 9.5, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 6/16/2026: 8-2 PHI (Favorite: Phillies, Spread: -1.5, Total: 8.5, Favorite Moneyline: -178, Underdog Moneyline: +150)
• 6/15/2026: 7-0 PHI (Favorite: Phillies, Spread: -1.5, Total: 8, Favorite Moneyline: -190, Underdog Moneyline: +160)
• 5/4/2026: 1-0 PHI (Favorite: Marlins, Spread: -1.5, Total: 8.5, Favorite Moneyline: -110, Underdog Moneyline: -106)
• 5/3/2026: 7-2 PHI (Favorite: Phillies, Spread: -1.5, Total: 8, Favorite Moneyline: -144, Underdog Moneyline: +122)
• 5/2/2026: 4-0 MIA (Favorite: Marlins, Spread: -1.5, Total: 8.5, Favorite Moneyline: -132, Underdog Moneyline: +112)

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