Mariners vs Rockies Prediction, Odds, Moneyline, Spread & Over/Under for Sept. 19

Odds updated as of 4:11 a.m.

On Saturday in MLB, the Seattle Mariners are up against the Colorado Rockies.

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

Mariners vs Rockies Game Info

• Seattle Mariners (72-82) vs. Colorado Rockies (56-98)
• Date: Saturday, September 19, 2026
• Time: 8:10 p.m. ET
• Venue: Coors Field -- Denver, Colorado
• Coverage: Rockies.TV and Mariners.TV

Mariners vs Rockies Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-162) | COL: (+136)
• Spread: SEA: -1.5 (+100) | COL: +1.5 (-120)
• Total: 10.5 -- Over: (-122) | Under: (+100)

Mariners vs Rockies Probable Starting Pitchers

Probable Pitchers: Bryce Miller (Mariners) - 4-9, 4.19 ERA vs Tomoyuki Sugano (Rockies) - 12-10, 5.49 ERA

The probable pitchers are Bryce Miller (4-9) for the Mariners and Tomoyuki Sugano (12-10) for the Rockies. Miller's team is 2-16-0 against the spread in his starts this season. Miller's team has won 21.4% of his starts when they are favored on the moneyline (3-11). The Rockies have a 16-10-0 ATS record in Sugano's 26 starts with a set spread. The Rockies have been the moneyline underdog in 26 of Sugano's starts this season, and they went 14-12 in those games.

Mariners vs Rockies Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (55.7%)

Mariners vs Rockies Moneyline

• Colorado is the underdog, +136 on the moneyline, while Seattle is a -162 favorite despite being on the road.

Mariners vs Rockies Spread

• The Rockies are at +1.5 on the runline against the Mariners. The Rockies are -120 to cover the spread, and the Mariners are +100.

Mariners vs Rockies Over/Under

• Mariners versus Rockies on Sept. 19 has an over/under of 10.5 runs, with the odds on the over -122 and the under set at +100.

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

Mariners vs Rockies Betting Trends

• The Mariners have been chosen as favorites in 117 games this year and have walked away with the win 58 times (49.6%) in those games.
• This year Seattle has won 15 of 27 games when listed as at least -162 on the moneyline.
• The Mariners' games have gone over the total in 81 of their 152 opportunities.
• The Mariners have posted a record of 56-96-0 against the spread this season.
• The Rockies have won 36.1% of the games this season they were the moneyline underdog (53-94).
• Colorado is 26-67 (winning only 28% of its games) when playing as a moneyline underdog of +136 or longer.
• The Rockies have played in 151 games with an over/under set, and have combined with their opponents to go over the total 75 times (75-73-3).
• The Rockies have put together a 79-72-0 record ATS this season.

Mariners Player Leaders

• Randy Arozarena has 153 hits this season and a team-best OBP of .378. He has a .281 batting average and a slugging percentage of .480.
• He ranks 22nd in batting average, ninth in on-base percentage, and 28th in slugging among qualifying hitters in MLB.
• Arozarena has recorded a base hit in seven games in a row. During his last 10 outings he is hitting .385 with three doubles, three home runs, four walks and nine RBIs.
• Josh Naylor has hit 10 homers this season while driving in 54 runs. He's batting .272 this season and slugging .364 with an on-base percentage of .327.
• Among qualifying batters, he ranks 37th in batting average, 73rd in on-base percentage and 120th in slugging percentage.
• Naylor takes a three-game streak with at least one hit into this contest. In his last five games he is hitting .333 with a double, a walk and four RBIs.
• Cole Young has collected 137 base hits, an OBP of .309 and a slugging percentage of .387 this season.
• Julio Rodriguez is batting .241 with a .302 OBP and 66 RBI for Seattle this season.

Rockies Player Leaders

• Jake McCarthy is hitting .298 with 30 doubles, 12 triples, 15 home runs and 29 walks. He's slugging .490 with an on-base percentage of .342.
• Including all the qualified players in the majors, his batting average places him eighth, his on-base percentage ranks 53rd, and he is 20th in slugging.
• TJ Rumfield paces his team with a .392 OBP, and has a club-best .453 slugging percentage. He has a batting average of .300.
• He is currently seventh in batting average, third in on-base percentage and 42nd in slugging percentage among all qualifying hitters.
• Hunter Goodman has 119 hits, a team-best for the Rockies.
• Kyle Karros is hitting .259 with 21 doubles, three triples, 12 home runs and 50 walks.

Mariners vs Rockies Head to Head

• 9/18/2026: 5-4 SEA (Favorite: Mariners, Spread: -1.5, Total: 10.5, Favorite Moneyline: -186, Underdog Moneyline: +156)
• 9/25/2025: 6-2 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -320, Underdog Moneyline: +260)
• 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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