The Miami Marlins host the New York Mets at loanDepot park on Wednesday, September 9, 2026, with first pitch set for 6:40 PM ET. Right-hander Janson Junk takes the hill for Miami against New York's Robert Stock in a late-season regular season contest. With September baseball in full swing, every game carries weight, and the Fish will look to take care of business in front of the home crowd. Catch the action on Marlins.TV presented by Werner, Hoffman, Greig & Garcia or tune in on WQAM 104.3 FM.

Marlins vs. Mets Starting Pitchers: Janson Junk vs. Robert Stock

Janson Junk draws the start for Miami. The right-hander has carved out a spot in this rotation, and he will need to work efficiently against a Mets lineup that can put pressure on pitchers in a hurry. On the other side, New York counters with Robert Stock. Neither pitcher carries verified ERA or win-loss data heading into this preview, so what happens Wednesday will do the talking.

The key for Junk will be limiting traffic on the bases and staying ahead in counts. When he commands his stuff, he gives the Marlins a chance to compete. If the Mets get him deep into counts early, that bullpen workload piles up fast — something Miami cannot afford late in the regular season.

Miami Marlins Starting Lineup for September 9

• Kyle Stowers — DH
• Heriberto Hernández — LF
• Griffin Conine — 1B
• Otto Lopez — SS
• Jakob Marsee — CF
• Javier Sanoja — 2B
• Owen Caissie — RF
• Graham Pauley — 3B
• Joe Mack — C

Keys to Watch in Wednesday's Marlins-Mets Game

Griffin Conine and the Middle of the Order

Batting third, Griffin Conine represents the heart of this lineup. He will see some of the most important at-bats of the night, and how he performs against Stock will shape Miami's offensive output. Otto Lopez slots in right behind him at cleanup, giving the Marlins back-to-back threats they need producing to put runs on the board.

Jakob Marsee and the Young Core

Jakob Marsee batting fifth in center field is worth watching. The young outfielder gets a significant opportunity in the lineup, and his performance in the middle stages of this order could be a factor in how the game unfolds. Keep an eye on how he handles a major league pitcher in a meaningful September contest.

Joe Mack Calling the Game

Catcher Joe Mack hits ninth and handles the battery with Junk. The communication between Mack and his starter often dictates tempo. A steady game behind the plate keeps Junk on track and helps Miami control what it can control on a Wednesday night at home.

Prediction: Marlins vs. Mets, September 9, 2026

Home field matters, and loanDepot park gives Miami a real advantage on a September night. Junk will need a quality outing of at least five innings to keep the bullpen fresh, and the offense will need Conine and Lopez to deliver with runners on base. This one figures to be a competitive, low-scoring affair. Look for the Marlins to edge the Mets in a tight game where pitching and timely hitting decide the outcome. Edge: Marlins.