Diamondbacks vs Marlins Prediction, Odds, Moneyline, Spread & Over/Under for Sept. 15

Odds updated as of 4:12 a.m.

The Arizona Diamondbacks are among the MLB squads in action on Tuesday, up against the Miami Marlins.

Before you do any MLB betting on this matchup at FanDuel Sportsbook, here's everything you need to know.

Diamondbacks vs Marlins Game Info

• Arizona Diamondbacks (80-71) vs. Miami Marlins (74-77)
• Date: Tuesday, September 15, 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: (-152) | MIA: (+128)
• Spread: ARI: -1.5 (+146) | MIA: +1.5 (-176)
• Total: 8.5 -- Over: (-115) | Under: (-105)

Diamondbacks vs Marlins Probable Starting Pitchers

Probable Pitchers: Mike Soroka (Diamondbacks) - 8-5, 3.53 ERA vs Janson Junk (Marlins) - 6-9, 4.54 ERA

The Diamondbacks will give the nod to Mike Soroka (8-5) against the Marlins and Janson Junk (6-9). Soroka and his team are 9-8-0 ATS this season when he starts. When Soroka starts a game and his team is the favorite on the moneyline, they have a record of 7-4. The Marlins have an 11-11-0 record against the spread in Junk's starts. The Marlins have been the moneyline underdog in 12 of Junk's starts this season, and they went 5-7 in those matchups.

Diamondbacks vs Marlins Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Marlins win (58%)

Diamondbacks vs Marlins Moneyline

• Arizona is the favorite, -152 on the moneyline, while Miami is a +128 underdog on the road.

Diamondbacks vs Marlins Spread

• The Marlins are at +1.5 on the runline against the Diamondbacks. The Marlins are -176 to cover the spread, and the Diamondbacks are +146.

Diamondbacks vs Marlins Over/Under

• The Diamondbacks-Marlins game on Sept. 15 has been given an over/under of 8.5 runs. The over is set at -115 and the under at -105.

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Diamondbacks vs Marlins Betting Trends

• The Diamondbacks have been favorites in 62 games this season and have come away with the win 36 times (58.1%) in those contests.
• Arizona has a record of 8-5 when favored by -152 or more this year.
• The Diamondbacks and their opponents have gone over in 64 of their 149 games with a total set by sportsbooks this season.
• The Diamondbacks have an against the spread mark of 78-71-0 in 149 games with a line this season.
• The Marlins have been the underdog on the moneyline 83 total times this season. They've gone 33-50 in those games.
• Miami is 6-20 (winning just 23.1% of its games) when playing as a moneyline underdog of +128 or longer.
• The Marlins have played in 149 games with a set over/under, and have combined with opponents to go over the total 76 times (76-71-2).
• The Marlins have collected a 76-73-0 record against the spread this season (covering 51% of the time).

Diamondbacks Player Leaders

• Corbin Carroll has 130 hits, which leads Arizona hitters this season, while batting .240 with 67 extra-base hits. He has an on-base percentage of .331 and a slugging percentage of .470.
• Among all qualified hitters in baseball, he ranks 101st in batting average, 66th in on-base percentage, and 31st in slugging.
• Carroll will look for his third straight game with a hit in this matchup. During his last five outings he is batting .222 with two home runs and six RBIs.
• Ketel Marte has 27 doubles, three triples, 22 home runs and 47 walks. He's batting .250 and slugging .441 with an on-base percentage of .317.
• He ranks 77th in batting average, 94th in on-base percentage and 55th in slugging in MLB.
• Marte enters this game looking to extend his two-game hit streak. In his last five games he is hitting .217 with three doubles, a walk and four RBIs.
• Geraldo Perdomo has an OPS of .722, fueled by an OBP of .359 and a team-best slugging percentage of .363 this season.
• Gabriel Moreno leads the Diamondbacks with an OPS of .846. He has a slash line of .301/.379/.467 this season.
• Moreno brings a four-game hitting streak into this game. In his last five games he is batting .333 with a home run, a walk and three RBIs.

Marlins Player Leaders

• Otto Lopez has accumulated a team-best .441 slugging percentage. He's batting .307 with an on-base percentage of .347.
• Including all the qualifying hitters in the majors, his batting average ranks third, his on-base percentage is 45th, and he is 55th in slugging.
• Xavier Edwards' .362 OBP leads his team. He has a batting average of .283 while slugging .376.
• His batting average ranks 20th among all qualified players, his on-base percentage is 26th, and he is 112th in slugging.
• Javier Sanoja is batting .293 with 30 doubles, five triples, nine home runs and 25 walks.
• Jakob Marsee is hitting .226 with 18 doubles, six triples, 10 home runs and 73 walks.

Diamondbacks vs Marlins Head to Head

• 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)
• 4/15/2025: 10-4 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 9, Favorite Moneyline: -156, Underdog Moneyline: +132)

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