Mariners vs Rockies Prediction, Odds, Moneyline, Spread & Over/Under for Sept. 25

Odds updated as of 7:13 a.m.

The Seattle Mariners are among the MLB squads playing on Thursday, up against the Colorado Rockies.

Before checking out the MLB betting lines on FanDuel Sportsbook, we've got you covered, in terms of the vital information regarding this game.

Mariners vs Rockies Game Info

• Seattle Mariners (89-69) vs. Colorado Rockies (43-115)
• Date: Thursday, September 25, 2025
• Time: 9:40 p.m. ET
• Venue: T-Mobile Park -- Seattle, Washington
• Coverage: ROOT Sports NW and COLR

Mariners vs Rockies Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-220) | COL: (+184)
• Spread: SEA: -1.5 (-102) | COL: +1.5 (-118)
• Total: 8 -- Over: (-105) | Under: (-115)

Mariners vs Rockies Probable Starting Pitchers

Probable Pitchers: TBA (Mariners) vs Bradley Blalock (Rockies) - 2-5, 0.00 ERA

Blalock (2-5) will take the ball for the Rockies. As of this writing, there's been no pitching decision announced by the Mariners. The Rockies are 4-6-0 against the spread when Blalock starts. The Rockies have a 2-8 record in Blalock's 10 starts this season when they were the underdog on the moneyline.

Mariners vs Rockies Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (75.2%)

Mariners vs Rockies Moneyline

• Looking at the moneyline for Rockies-Mariners, Colorado is the underdog at +184, and Seattle is -220 playing at home.

Mariners vs Rockies Spread

• The Mariners are hosting the Rockies and are favored by 1.5 runs on the spread. The Mariners are -102 to cover the runline, with the Rockies being -118.

Mariners vs Rockies Over/Under

• A total of 8 runs has been set for the Mariners-Rockies game on Sept. 25, with the over available at -105 and the under at -115.

Bet on Seattle Mariners vs. Colorado Rockies on FanDuel today!

Mariners vs Rockies Betting Trends

• The Mariners have been chosen as favorites in 108 games this year and have walked away with the win 65 times (60.2%) in those games.
• Seattle has a record of 10-1 when favored by -220 or more this year.
• The Mariners and their opponents have gone over the total this season in 83 of their 153 opportunities.
• The Mariners have an against the spread record of 69-84-0 in 153 games with a line this season.
• The Rockies have won 25.7% of the games this season they were the underdog on the moneyline (38-110).
• Colorado is 15-64 (winning only 19% of its games) when playing as a moneyline underdog of +184 or longer.
• The Rockies have played in 153 games with a set over/under, and have combined with their opponents to go over the total 67 times (67-81-5).
• The Rockies have a 62-91-0 record against the spread this season.

Mariners Player Leaders

• Cal Raleigh leads Seattle with 144 hits and an OBP of .361 this season. He has a .248 batting average and a slugging percentage of .598.
• He is 95th in batting average, 18th in on-base percentage, and third in slugging among all qualified hitters in baseball.
• Julio Rodriguez has an OPS of .803, fueled by an OBP of .324 and a team-best slugging percentage of .479 this season. He's batting .269.
• Among qualifying hitters, his batting average places him 41st, his on-base percentage 83rd, and his slugging percentage 32nd.
• Josh Naylor is batting .292 with a .459 slugging percentage and 92 RBI this year.
• Naylor has logged a hit or more in 10 games in a row. During his last 10 games he is hitting .410 with three doubles, a home run, two walks and 12 RBIs.
• Eugenio Suarez has been key for Seattle with 131 hits, an OBP of .302 plus a slugging percentage of .531.

Rockies Player Leaders

• Hunter Goodman has a team-best slugging percentage (.517) and leads the Rockies in hits (145). He's batting .277 and with an on-base percentage of .322.
• Including all the qualifying players in MLB, he ranks 30th in batting average, 91st in on-base percentage and 13th in slugging percentage.
• Mickey Moniak has 20 doubles, eight triples, 24 home runs and 22 walks while batting .270. He's slugging .521 with an on-base percentage of .306.
• Jordan Beck has accumulated a team-high .324 on-base percentage.
• Tyler Freeman is batting .281 with 20 doubles, two triples, two home runs and 34 walks.

Mariners vs Rockies Head to Head

• 9/24/2025: 9-2 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -300, Underdog Moneyline: +245)
• 9/23/2025: 4-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -300, Underdog Moneyline: +245)
• 4/21/2024: 10-2 SEA (Favorite: Mariners, Spread: -1.5, Total: 11, Favorite Moneyline: -118, Underdog Moneyline: -100)
• 4/21/2024: 2-1 COL (Favorite: Mariners, Spread: -1.5, Total: 10.5, Favorite Moneyline: -190, Underdog Moneyline: +160)
• 4/20/2024: 7-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 9.5, Favorite Moneyline: -184, Underdog Moneyline: +154)
• 4/16/2023: 1-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -300, Underdog Moneyline: +245)
• 4/15/2023: 9-2 SEA (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -250, Underdog Moneyline: +205)
• 4/14/2023: 5-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -178, Underdog Moneyline: +150)

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