Mariners vs. Marlins Dunkel MLB Picks, Predictions and Prop Bets - July 9

The Miami Marlins will look to sweep a three-game series versus the Seattle Mariners, at 6:40 p.m. ET on Thursday. Bryce Miller (4-2, 1.71 ERA) gets the start for the Mariners, who are 47-46 this season and first in the AL West. Janson Junk (3-5, 4.80 ERA) is starting for the Marlins, who are 51-42 and third in the NL East.

Sportsbooks have set the Mariners as the moderate moneyline favorites (-128) on the road versus the Marlins (+105). The contest has an over/under set at 8.

Mariners vs. Marlins Odds, Game Time

• Game day: Thursday, July 9, 2026
• Game time: 6:40 p.m. ET
• Location: Miami, Florida
• Stadium: loanDepot park
• Favorite: Mariners (-128)
• Underdog: Marlins (+105)
• Over/under: 8

How to Watch Mariners vs. Marlins

• TV Channel: MIAM and SEAM
• Live Stream: Fubo (Watch for free)

Bet now on FanDuel Sportsbook!

Mariners vs. Marlins: Betting the Moneyline

• The Mariners have gone 44-37 in games they were favored on the moneyline (winning 54.3% of those games).
• Miami has been victorious in 19, or 40.4%, of the 47 contests it has been chosen as underdogs in this season.
• Seattle has entered 61 games this season favored by -128 or more and is 37-24 in those contests.
• The Marlins have a mark of 14-19 in contests where oddsmakers favor them by +105 or worse on the moneyline.
• Based on this game's moneyline, the Mariners' implied win probability is 56.1%.
• The Marlins have an implied victory probability of 48.8% according to the moneyline set by oddsmakers for this matchup.

Mariners vs. Marlins: Betting the Spread & Total

• The Mariners have played in 93 games with set over/under, and have combined with opponents to go over the total 44 times (44-46-3).
• Miami and its opponents have hit the over in 50 of its 93 games with a total this season.
• The Mariners have covered just 39.8% of their games this season, going 37-56-0 ATS.
• In 93 games with a line this season, the Marlins have a mark of 50-43-0 against the spread.