The Seattle Mariners head to loanDepot park in Miami for a Thursday night matchup against the Florida Marlins, with first pitch scheduled for 6:40 PM ET on July 9, 2026. Bryce Miller takes the ball for Seattle against Miami's Janson Junk in what shapes up as an intriguing pitching duel. With the Mariners on the road and no lineup card submitted on Seattle's side yet, the focus coming into this one is squarely on Miller to keep Miami's lineup in check and give the offense a chance to work against a Marlins pitching staff that has leaned on depth arms this season.

Pitching Matchup: Bryce Miller vs. Janson Junk

Miller is the name Seattle fans will be watching most closely tonight. The right-hander has developed into a key piece of the Mariners rotation, relying on his fastball command and ability to generate weak contact to keep opposing lineups off balance. A strong outing here would reinforce his value at the top of the staff heading into the second half of the season.

On the other side, Janson Junk takes the hill for Miami. Junk has made a career out of proving doubters wrong, and pitching at home in front of a Marlins crowd gives him a familiar setting to work with. Seattle's offense will need to be disciplined and patient — Junk is the kind of pitcher who benefits from hitters expanding the zone early in counts.

Miami Marlins Lineup to Watch

Miami is running out a lineup with some interesting pieces. A few names worth tracking for Seattle's pitching staff tonight:

• Liam Hicks (C, leadoff): An unconventional lineup choice batting a catcher first, but Miami is clearly looking to put pressure on early.
• Xavier Edwards (2B): Batting third, Edwards is a contact-oriented hitter who can be difficult to put away. Miller will need to be sharp against him.
• Kyle Stowers (1B): The cleanup spot belongs to Stowers, who carries power potential. Keeping him in the yard is a priority for Seattle's arm tonight.
• Heriberto Hernández (DH): Slotted fifth, Hernández gives Miami a dangerous middle-of-the-order presence. Seattle cannot afford to let runners get on base ahead of him.
• Esteury Ruiz (RF): A legitimate speed threat batting seventh, Ruiz can change the complexion of an inning if he reaches base.

Keys to the Game for Seattle

• Miller's command: If Miller can establish his fastball early and keep Miami's contact hitters from getting comfortable, Seattle's defense should handle the rest.
• Patience against Junk: Seattle's lineup needs to work counts and not let Junk settle in with early strikes. Deep at-bats will wear him down.
• Limit the running game: With Ruiz in the Miami lineup, Seattle's battery needs to keep the running game in check. Stolen bases can manufacture runs against even the sharpest pitchers.
• Road discipline: Games at loanDepot park can go sideways fast if a visiting team plays sloppy. Clean defense behind Miller is non-negotiable.

Prediction

This is a winnable game for Seattle. Miller is a legitimate rotation anchor, and Junk — while capable — represents a matchup the Mariners should approach with confidence. The Seattle lineup, once it is posted, figures to provide enough run support if Miller can give five or six quality innings. Expect a relatively low-scoring affair that comes down to which pitcher blinks first. Give the edge to Seattle, 4-2, with Miller turning in a quality start and the bullpen closing it out.

Catch the game on Mariners.TV or listen locally on Seattle Sports 710 AM.