The Arizona Diamondbacks come into Friday’s home contest against the Miami Marlins with a 41–38 record and a chance to solidify their standing in the highly competitive National League West as they continue to balance strong offensive output with solid starting pitching. They’re expected to send right-hander Merrill Kelly to the mound, who has been outstanding of late, most notably throwing seven scoreless innings against Atlanta in his last start, allowing just one hit and striking out eight. Kelly’s veteran presence, pitch efficiency, and ability to neutralize right- and left-handed hitters alike make him a strong matchup against a Miami offense that lacks power and has consistently struggled to score runs in bunches. Offensively, Arizona’s lineup has been led by Ketel Marte, who enters the series batting .313 with a .416 on-base percentage and a .596 slugging percentage, giving the Diamondbacks a true engine at the top of the order. Eugenio Suárez has also been a reliable run producer, adding 25 home runs and consistent middle-of-the-lineup power that helps stretch opposing pitching staffs. Rookie Jordan Lawlar and utilityman Geraldo Perdomo have added defensive versatility and some timely hitting, giving Arizona a well-rounded unit that can manufacture runs in a variety of ways. The D-backs average nearly 4.7 runs per game and have proven capable of late-inning comebacks, supported by a bullpen that, while not elite, has improved in recent weeks.

Closer Paul Sewald has been dependable in save situations, while setup arms like Kevin Ginkel and Joe Mantiply have stepped up to hold leads effectively. On defense, Arizona has played sharp, smart baseball, particularly in the infield, where Marte and Perdomo have combined for several highlight-reel plays and helped turn key double plays to bail pitchers out of trouble. Arizona has been a solid bet both straight up and against the spread this season, sitting at 40–39 ATS and often taking advantage of games against struggling opponents to cover multi-run margins. They’re also tough at Chase Field, where their fast outfield and high energy often give them a noticeable edge in night games, especially against teams like Miami that don’t travel well. Manager Torey Lovullo has emphasized strong starts and taking early leads, something the Diamondbacks will aim for against a talented but youthful pitcher in Eury Pérez who could be vulnerable early if the top of the order applies immediate pressure. With Kelly’s ability to dominate on the mound and the lineup hitting its stride, Arizona enters this game in prime position to secure a home win and potentially open a momentum-building stretch through the weekend. The team’s mix of veteran leadership, rising stars, and playoff aspirations makes them a dangerous opponent for any team, and unless Miami delivers an exceptional pitching and defensive performance, the Diamondbacks are poised to capitalize and push further above the .500 mark.