Mariners vs Marlins Prediction, Odds, Moneyline, Spread & Over/Under for April 26

Odds updated as of 9:11 a.m.

The Seattle Mariners will take on the Miami Marlins in MLB action on Saturday.

Before checking out the MLB betting lines on FanDuel Sportsbook, we've got you covered, in terms of the most important information about this matchup.

Mariners vs Marlins Game Info

• Seattle Mariners (14-12) vs. Miami Marlins (12-13)
• Date: Saturday, April 26, 2025
• Time: 9:40 p.m. ET
• Venue: T-Mobile Park -- Seattle, Washington
• Coverage: ROOT Sports NW and FDSFL

Mariners vs Marlins Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-225) | MIA: (+188)
• Spread: SEA: -1.5 (-106) | MIA: +1.5 (-113)
• Total: 7.5 -- Over: (-115) | Under: (-105)

Mariners vs Marlins Probable Starting Pitchers

Probable Pitchers: Luis Miguel Castillo (Mariners) - 2-2, 4.44 ERA vs Connor Gillispie (Marlins) - 0-2, 6.75 ERA

This contest's pitching matchup is set, as the Mariners will send Luis Miguel Castillo (2-2) to the mound, while Connor Gillispie (0-2) will get the nod for the Marlins. When Castillo starts, his team is 2-3-0 against the spread this season. Castillo's team is 1-3 this season when he starts and they are the moneyline favorite. When Gillispie starts, the Marlins have gone 3-2-0 against the spread. The Marlins have been the moneyline underdog in five of Gillispie's starts this season, and they went 1-4 in those games.

Mariners vs Marlins Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (66.1%)

Mariners vs Marlins Moneyline

• Looking at the moneyline for Mariners-Marlins, Seattle is the favorite at -225, and Miami is +188 playing on the road.

Mariners vs Marlins Spread

• The Mariners are favored by 1.5 runs at home versus the Marlins. The Mariners are -106 to cover the spread, while the Marlins are -113.

Mariners vs Marlins Over/Under

• A combined run total of 7.5 has been set for Mariners-Marlins on April 26, with the over at -115 and the under at -105.

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Mariners vs Marlins Betting Trends

• The Mariners have been victorious in eight, or 53.3%, of the 15 contests they have been chosen as favorites in this season.
• Seattle has played as a favorite of -225 or more just one time this year and came away with a loss in that game.
• The Mariners and their opponents have hit the over in 13 of their 26 games with a total set by oddsmakers this season.
• In 26 games with a line this season, the Mariners have a mark of 13-13-0 against the spread.
• The Marlins have won 43.5% of the games this season they were the moneyline underdog (10-13).
• In games it has played as a moneyline underdog with odds of +188 or longer, Miami has a record of 3-3 (50%).
• The Marlins have combined with opponents to hit the over on the total 16 times this season for a 16-9-0 record against the over/under.
• The Marlins have a 14-11-0 record ATS this season (covering 56% of the time).

Mariners Player Leaders

• Cal Raleigh leads Seattle in slugging percentage (.534) and total hits (23) this season. He's batting .223 with an on-base percentage of .322.
• Among all qualifying hitters in baseball, he is 107th in batting average, 88th in on-base percentage, and 21st in slugging.
• Randy Arozarena is batting .200 with six doubles, four home runs and 19 walks. He's slugging .400 with an on-base percentage of .363.
• Among qualified hitters, his batting average ranks him 133rd, his on-base percentage 41st, and his slugging percentage 83rd.
• Dylan Moore is batting .286 with a .557 slugging percentage and nine RBI this year.
• Moore brings a two-game hitting streak into this game. During his last five outings he is hitting .222 with two home runs, two walks and three RBI.
• Jorge Polanco has been key for Seattle with 21 hits, an OBP of .359 plus a slugging percentage of .623.
• Polanco brings a three-game hitting streak into this game. In his last five games he is batting .250 with two home runs, a walk and four RBI.

Marlins Player Leaders

• Otto Lopez has five doubles, two home runs and nine walks while batting .222. He's slugging .344 with an on-base percentage of .293.
• He is 109th in batting average, 110th in on-base percentage and 117th in slugging percentage among all qualifying batters in the majors.
• Xavier Edwards' .317 slugging percentage paces his team. He has a batting average of .288 with an on-base percentage of .364.
• His batting average is 35th among all qualified players, his on-base percentage is 40th, and he is 133rd in slugging.
• Eric Wagaman is leading the Marlins with 21 hits.
• Kyle Stowers' .371 OBP leads his team.

Mariners vs Marlins Head to Head

• 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)
• 5/1/2022: 7-3 SEA (Favorite: Marlins, Spread: -1.5, Total: 7, Favorite Moneyline: -134, Underdog Moneyline: +114)
• 4/30/2022: 3-1 MIA (Favorite: Marlins, Spread: -1.5, Total: 7.5, Favorite Moneyline: -118, Underdog Moneyline: -100)
• 4/29/2022: 8-6 MIA (Favorite: Marlins, Spread: -1.5, Total: 8, Favorite Moneyline: -112, Underdog Moneyline: -104)

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