Mariners vs Pirates Prediction, Odds, Moneyline, Spread & Over/Under for June 25

Odds updated as of 9:12 p.m.

On Thursday in MLB, the Seattle Mariners are up against the Pittsburgh Pirates.

Before you do any MLB betting on this matchup at FanDuel Sportsbook, here's everything you need to know.

Mariners vs Pirates Game Info

• Seattle Mariners (41-39) vs. Pittsburgh Pirates (39-40)
• Date: Thursday, June 25, 2026
• Time: 12:35 p.m. ET
• Venue: PNC Park -- Pittsburgh, Pennsylvania
• Coverage: SportsNet PT and Mariners.TV

Mariners vs Pirates Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-136) | PIT: (+116)
• Spread: SEA: -1.5 (+126) | PIT: +1.5 (-152)
• Total: 8.5 -- Over: (-115) | Under: (-105)

Mariners vs Pirates Probable Starting Pitchers

Probable Pitchers: Bryce Miller (Mariners) - 3-1, 1.58 ERA vs Bubba Chandler (Pirates) - 2-7, 4.62 ERA

The Mariners will call on Bryce Miller (3-1) versus the Pirates and Bubba Chandler (2-7). Miller and his team have a record of 1-4-0 against the spread when he starts. Miller's team has a record of 2-3 this season when he starts and they are the favorite on the moneyline. The Pirates have a 6-8-0 ATS record in Chandler's 14 starts with a set spread. The Pirates have been the underdog on the moneyline in seven of Chandler's starts this season, and they went 1-6 in those games.

Mariners vs Pirates Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (53.4%)

Mariners vs Pirates Moneyline

• Looking at the moneyline for Pirates-Mariners, Pittsburgh is the underdog at +116, and Seattle is -136 playing on the road.

Mariners vs Pirates Spread

• The Mariners are at the Pirates and are favored by 1.5 runs (+126 to cover) on the runline. Pittsburgh is -152 to cover.

Mariners vs Pirates Over/Under

• The Mariners-Pirates game on June 25 has been given an over/under of 8.5 runs. The over is set at -115 and the under at -105.

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Mariners vs Pirates Betting Trends

• The Mariners have come away with 38 wins in the 72 contests they have been listed as the favorites in this season.
• This year Seattle has won 23 of 38 games when listed as at least -136 on the moneyline.
• Contests with the Mariners have gone over the total set by bookmakers in 37 of 79 chances this season.
• The Mariners have posted a record of 29-50-0 against the spread this season.
• The Pirates have won 13 of the 32 games they were the underdog on the moneyline this season (40.6%).
• Pittsburgh has a 7-7 record (winning 50% of its games) when it has played as a moneyline underdog of +116 or longer.
• The Pirates have combined with opponents to hit the over on the total 44 times this season for a 44-32-2 record against the over/under.
• The Pirates have covered 48.7% of their games this season, going 38-40-0 ATS.

Mariners Player Leaders

• Julio Rodriguez has an OPS of .733, fueled by an OBP of .307 and a team-best slugging percentage of .425 this season. He has a .244 batting average.
• Among qualifying hitters in the majors, his batting average ranks 96th, his on-base percentage ranks 121st, and he is 78th in slugging.
• Randy Arozarena leads the Mariners in OBP (.373) and total hits (76) this season. He's batting .287 while slugging .442.
• He is 21st in batting average, 24th in on-base percentage and 65th in slugging in MLB.
• Josh Naylor is batting .253 with a .368 slugging percentage and 33 RBI this year.
• Cole Young has been key for Seattle with 73 hits, an OBP of .319 plus a slugging percentage of .372.
• Young heads into this matchup on a two-game hitting streak. During his last five outings he is batting .200 with a double, a home run, two walks and four RBIs.

Pirates Player Leaders

• Bryan Reynolds has accumulated an on-base percentage of .401 and a slugging percentage of .482. Both lead the Pirates. He's batting .287.
• Including all qualified hitters, he ranks 21st in batting average, while his on-base percentage ranks sixth and he is 37th in slugging.
• Reynolds heads into this matchup on a 13-game hitting streak. During his last 10 outings he is hitting .432 with four doubles, four home runs, four walks and 11 RBIs.
• Brandon Lowe leads his team with 70 hits. He has a batting average of .246 while slugging .511 with an on-base percentage of .326.
• Including all qualified hitters, he ranks 89th in batting average, 90th in on-base percentage and 22nd in slugging percentage.
• Spencer Horwitz is batting .282 with 11 doubles, a triple, 10 home runs and 39 walks.
• Nick Gonzales' .376 slugging percentage paces his team.

Mariners vs Pirates Head to Head

• 6/23/2026: 3-2 SEA (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -134, Underdog Moneyline: +114)
• 7/6/2025: 1-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 6.5, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 7/5/2025: 1-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -166, Underdog Moneyline: +140)
• 7/4/2025: 6-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -180, Underdog Moneyline: +152)
• 8/18/2024: 10-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -158, Underdog Moneyline: +134)
• 8/17/2024: 7-2 PIT (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -152, Underdog Moneyline: +128)
• 8/16/2024: 5-3 PIT (Favorite: Pirates, Spread: -1.5, Total: 6.5, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 5/28/2023: 6-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -142, Underdog Moneyline: +120)
• 5/27/2023: 5-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -225, Underdog Moneyline: +188)
• 5/26/2023: 11-6 PIT (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -162, Underdog Moneyline: +136)

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