Mariners vs Marlins Prediction, Odds, Moneyline, Spread & Over/Under for July 8

Odds updated as of 6:11 p.m.

The MLB schedule on Wednesday includes the Seattle Mariners facing the Miami Marlins.

All the info you need to make smart wagers on this matchup at FanDuel Sportsbook can be found below. Check out all of the latest MLB betting lines here.

Mariners vs Marlins Game Info

• Seattle Mariners (47-45) vs. Miami Marlins (50-42)
• Date: Wednesday, July 8, 2026
• Time: 6:40 p.m. ET
• Venue: loanDepot park -- Miami, Florida
• Coverage: Marlins.TV and Mariners.TV

Mariners vs Marlins Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-130) | MIA: (+110)
• Spread: SEA: -1.5 (+128) | MIA: +1.5 (-154)
• Total: 8.5 -- Over: (-122) | Under: (+100)

Mariners vs Marlins Probable Starting Pitchers

Probable Pitchers: George Kirby (Mariners) - 7-7, 3.81 ERA vs Tyler Phillips (Marlins) - 1-3, 3.52 ERA

The Mariners will give the nod to George Kirby (7-7, 3.81 ERA), who is eyeing win No. 8 on the season, and the Marlins will counter with Tyler Phillips (1-3, 3.52 ERA). Kirby and his team have a record of 6-11-0 against the spread when he starts. Kirby's team has a record of 9-8 this season when he starts and they are the favorite on the moneyline. The Marlins have a 4-3-0 ATS record in Phillips' seven starts with a set spread. The Marlins are 1-3 in Phillips' four starts this season that they were the underdog on the moneyline.

Mariners vs Marlins Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Marlins win (51.6%)

Mariners vs Marlins Moneyline

• Miami is a +110 underdog on the moneyline, while Seattle is a -130 favorite on the road.

Mariners vs Marlins Spread

• The Mariners are 1.5-run road favorites on the runline against the Marlins. The Mariners are +128 to cover, and the Marlins are -154.

Mariners vs Marlins Over/Under

• Mariners versus Marlins on July 8 has an over/under of 8.5 runs, with the odds on the over -122 and the under set at +100.

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Mariners vs Marlins Betting Trends

• The Mariners have won in 43, or 54.4%, of the 79 contests they have been named as odds-on favorites in this year.
• Seattle has a record of 35-24 in contests when bookmakers favor them by -130 or more on the moneyline.
• The Mariners and their opponents have hit the over in 43 of their 91 games with a total set by oddsmakers this season.
• The Mariners have an against the spread record of 34-57-0 in 91 games with a line this season.
• The Marlins have gone 18-29 in games they were the underdog on the moneyline (winning 38.3% of those games).
• Miami has a 12-18 record (winning 40% of its games) when it has played as a moneyline underdog of +110 or longer.
• The Marlins have had an over/under set by bookmakers 91 times, and have combined with opponents to go over the total in 49 of those games (49-40-2).
• The Marlins have collected a 49-42-0 record ATS this season.

Mariners Player Leaders

• Randy Arozarena leads Seattle in OBP (.381), slugging percentage (.453) and total hits (89) this season. He has a .290 batting average.
• Among qualified batters in MLB, his batting average ranks 22nd, his on-base percentage ranks 16th, and he is 57th in slugging.
• Arozarena will look for his fourth straight game with a hit in this contest. During his last five outings he is hitting .412 with a double, a home run, three walks and four RBIs.
• Josh Naylor is batting .250 with 11 doubles, eight home runs and 27 walks, while slugging .354 with an on-base percentage of .311.
• He ranks 85th in batting average, 114th in on-base percentage and 128th in slugging in the major leagues.
• Naylor brings a three-game streak with at least one hit into this matchup. During his last five outings he is hitting .143 with two RBIs.
• Cole Young has 85 hits this season and has a slash line of .258/.319/.394.
• Dominic Canzone is batting .267 with a .342 OBP and 37 RBI for Seattle this season.

Marlins Player Leaders

• Otto Lopez has racked up a team-high slugging percentage (.515) and paces the Marlins in hits (124). He's batting .343 and with an on-base percentage of .374.
• Including all the qualified hitters in the majors, his batting average places him first, his on-base percentage is 23rd, and he is 15th in slugging.
• Lopez hopes to build on a seven-game hitting streak in this matchup. During his last 10 games he is hitting .370 with four doubles, two triples, three home runs, a walk and eight RBIs.
• Xavier Edwards has a .385 on-base percentage to pace his team. He has a batting average of .300 while slugging .423.
• He is currently 10th in batting average, 12th in on-base percentage and 76th in slugging percentage among all qualifying hitters.
• Liam Hicks has eight doubles, a triple, 13 home runs and 31 walks while hitting .295.
• Jakob Marsee is hitting .196 with 11 doubles, three triples, five home runs and 47 walks.

Mariners vs Marlins Head to Head

• 7/7/2026: 6-5 MIA (Favorite: Marlins, Spread: -1.5, Total: 8, Favorite Moneyline: -122, Underdog Moneyline: +104)
• 4/27/2025: 7-6 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -142, Underdog Moneyline: +120)
• 4/26/2025: 14-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -220, Underdog Moneyline: +184)
• 4/25/2025: 8-4 MIA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -320, Underdog Moneyline: +260)
• 6/23/2024: 6-4 MIA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -154, Underdog Moneyline: +130)
• 6/22/2024: 9-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -168, Underdog Moneyline: +142)
• 6/21/2024: 3-2 MIA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -176, Underdog Moneyline: +148)
• 6/14/2023: 4-1 MIA (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -188, Underdog Moneyline: +158)
• 6/13/2023: 9-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -154, Underdog Moneyline: +130)
• 6/12/2023: 8-1 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -120, Underdog Moneyline: +102)

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