Diamondbacks vs Marlins Prediction, Odds, Moneyline, Spread & Over/Under for Sept. 16

Odds updated as of 5:12 a.m.

MLB action on Wednesday includes the Arizona Diamondbacks facing the Miami Marlins.

Before checking out the MLB betting lines on FanDuel Sportsbook, we've got you covered, in terms of the most important information about this game.

Diamondbacks vs Marlins Game Info

• Arizona Diamondbacks (80-72) vs. Miami Marlins (75-77)
• Date: Wednesday, September 16, 2026
• Time: 9:40 p.m. ET
• Venue: Chase Field -- Phoenix, Arizona
• Coverage: Dbacks.TV and Marlins.TV

Diamondbacks vs Marlins Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: ARI: (-134) | MIA: (+114)
• Spread: ARI: -1.5 (+152) | MIA: +1.5 (-184)
• Total: 8.5 -- Over: (-132) | Under: (+108)

Diamondbacks vs Marlins Probable Starting Pitchers

Probable Pitchers: Merrill Kelly (Diamondbacks) - 9-13, 4.97 ERA vs Ryan Gusto (Marlins) - 1-5, 4.14 ERA

The Diamondbacks will give the nod to Merrill Kelly (9-13) versus the Marlins and Ryan Gusto (1-5). When Kelly starts, his team is 14-13-0 against the spread this season. Kelly's team has a record of 5-5 this season when he starts and they are the favorite on the moneyline. The Marlins have an 8-8-0 ATS record in Gusto's 16 starts with a set spread. The Marlins are 6-5 in Gusto's 11 starts this season that they were the underdog on the moneyline.

Diamondbacks vs Marlins Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Marlins win (57.2%)

Diamondbacks vs Marlins Moneyline

• Miami is the underdog, +114 on the moneyline, while Arizona is a -134 favorite at home.

Diamondbacks vs Marlins Spread

• The Marlins are at +1.5 on the runline against the Diamondbacks. The Marlins are -184 to cover the spread, and the Diamondbacks are +152.

Diamondbacks vs Marlins Over/Under

• Diamondbacks versus Marlins, on Sept. 16, has an over/under of 8.5, with the over being -132 and the under +108.

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Diamondbacks vs Marlins Betting Trends

• The Diamondbacks have been chosen as favorites in 63 games this year and have walked away with the win 36 times (57.1%) in those games.
• Arizona has a record of 17-12 in contests when bookmakers favor them by -134 or more on the moneyline.
• The Diamondbacks and their opponents have gone over in 64 of their 150 games with a total set by sportsbooks this season.
• The Diamondbacks are 78-72-0 against the spread in their 150 games that had a posted line this season.
• The Marlins have won 34 of the 84 games they were the underdog on the moneyline this season (40.5%).
• In games it has played as a moneyline underdog with odds of +114 or longer, Miami has gone 18-27 (40%).
• The Marlins have had an over/under set by bookmakers 150 times, and have combined with opponents to go over the total in 76 of those games (76-72-2).
• The Marlins have collected a 77-73-0 record ATS this season (covering 51.3% of the time).

Diamondbacks Player Leaders

• Corbin Carroll is batting .240 with 30 doubles, 16 triples, 21 home runs and 70 walks. He has an on-base percentage of .332 and a slugging percentage of .469.
• Among qualifying hitters in baseball, he is 101st in batting average, 66th in on-base percentage, and 34th in slugging.
• Carroll has recorded at least one hit in three straight games. During his last five outings he is hitting .250 with two home runs, a walk and six RBIs.
• Ketel Marte has 29 doubles, three triples, 22 home runs and 47 walks. He's batting .250 and slugging .444 with an on-base percentage of .317.
• Among all qualifying players, he ranks 79th in batting average, 91st in on-base percentage and 51st in slugging percentage.
• Marte takes a three-game streak with at least one hit into this one. In his last five games he is hitting .250 with five doubles, a walk and four RBIs.
• Geraldo Perdomo has collected 132 base hits, an OBP of .359 and a slugging percentage of .362 this season.
• Gabriel Moreno leads Arizona in OBP (.382), slugging percentage (.474) and total hits (133) this season.
• Moreno takes a five-game hitting streak into this game. During his last five outings he is hitting .381 with two home runs, three walks and four RBIs.

Marlins Player Leaders

• Otto Lopez has racked up a slugging percentage of .439, a team-high for the Marlins. He's batting .305 with an on-base percentage of .347.
• Including all qualified players in the big leagues, his batting average puts him fifth, his on-base percentage is 46th, and he is 60th in slugging.
• Xavier Edwards has a .362 on-base percentage to pace his team. He has a batting average of .283 while slugging .376.
• Including all qualifying hitters, he ranks 20th in batting average, 26th in on-base percentage and 116th in slugging percentage.
• Javier Sanoja is hitting .292 with 30 doubles, five triples, nine home runs and 25 walks.
• Jakob Marsee has 18 doubles, six triples, 10 home runs and 73 walks while batting .224.

Diamondbacks vs Marlins Head to Head

• 9/15/2026: 4-2 MIA (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -152, Underdog Moneyline: +128)
• 9/14/2026: 8-7 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -134, Underdog Moneyline: +114)
• 6/11/2026: 2-0 MIA (Favorite: Marlins, Spread: -1.5, Total: 8.5, Favorite Moneyline: -124, Underdog Moneyline: +106)
• 6/10/2026: 8-0 MIA (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 6/9/2026: 10-6 MIA (Favorite: Marlins, Spread: -1.5, Total: 7.5, Favorite Moneyline: -138, Underdog Moneyline: +118)
• 6/29/2025: 6-4 MIA (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -190, Underdog Moneyline: +160)
• 6/28/2025: 8-7 MIA (Favorite: Diamondbacks, Spread: -1.5, Total: 9, Favorite Moneyline: -162, Underdog Moneyline: +136)
• 6/27/2025: 9-8 MIA (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -172, Underdog Moneyline: +144)
• 4/17/2025: 6-4 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -148, Underdog Moneyline: +126)
• 4/16/2025: 6-2 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -146, Underdog Moneyline: +124)

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