Mariners vs. Rockies Dunkel MLB Picks, Predictions and Prop Bets - Sept. 19

The Colorado Rockies take a three-game losing streak into a contest versus the Seattle Mariners, at 8:10 p.m. ET on Saturday. Bryce Miller (4-9, 4.19 ERA) will start for the Mariners, who are 72-82 this season and third in the AL West. Jose Quintana (2-3, 5.27 ERA) is starting for the Rockies, who are 56-98 and fifth in the NL West.

Despite playing away from home the Mariners are at -159 to win, compared to the Rockies at +130. The game has an over/under of 10.5 runs.

Mariners vs. Rockies Odds, Game Time

• Game day: Saturday, September 19, 2026
• Game time: 8:10 p.m. ET
• Location: Denver, Colorado
• Stadium: Coors Field
• Favorite: Mariners (-159)
• Underdog: Rockies (+130)
• Over/under: 10.5

How to Watch Mariners vs. Rockies

• TV Channel: COLR and SEAM
• Live Stream: Fubo (Watch for free)

Bet now on FanDuel Sportsbook!

Mariners vs. Rockies: Betting the Moneyline

• The Mariners have compiled a 59-59 record in games they were listed as the moneyline favorite (winning 50% of those games).
• Colorado has been pegged as an underdog in 150 games this year and has walked away with the win 54 times (36%) in those games.
• Seattle is 18-14 this season when entering a game favored by -159 or more on the moneyline.
• This season, the Rockies have been victorious 30 times in 103 chances when named as an underdog of at least +130 or worse on the moneyline.
• The Mariners have a 61.4% chance to win this contest based on the moneyline's implied probability.
• The Rockies have an implied victory probability of 43.5% according to the moneyline set by sportsbooks for this matchup.

Mariners vs. Rockies: Betting the Spread & Total

• The Mariners have played in 154 games with set over/under, and have combined with opponents to go over the total 80 times (80-65-9).
• Games involving Colorado have gone over the total set by sportsbooks in 75 of 154 chances this season.
• The Mariners have covered only 37.7% of their games this season, going 58-96-0 against the spread.
• In 154 games with a line this season, the Rockies have a mark of 80-74-0 against the spread.