Mariners vs. Astros Dunkel MLB Picks, Predictions and Prop Bets - April 12

The Houston Astros carry a six-game losing streak into a home contest versus the Seattle Mariners, at 4:10 p.m. ET on Sunday. Logan Gilbert (0-2, 5.40 ERA) gets the start for the Mariners, who are 6-9 this season and fifth in the AL West. Cody Bolton (0-0, 3.68 ERA) is expected to start for the Astros, who are 6-9 and fourth in the AL West.

At home, the Mariners are favored to win on the moneyline (-160) over the Astros (+135). The over/under for this contest is 7.5.

Mariners vs. Astros Odds, Game Time

• Game day: Sunday, April 12, 2026
• Game time: 4:10 p.m. ET
• Location: Seattle, Washington
• Stadium: T-Mobile Park
• Favorite: Mariners (-160)
• Underdog: Astros (+135)
• Over/under: 7.5

How to Watch Mariners vs. Astros

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

Bet now on FanDuel Sportsbook!

Mariners vs. Astros: Betting the Moneyline

• The Mariners have won five of the 12 games they were favored on the moneyline this season (41.7%).
• Houston has come away with three wins in the five contests it has been listed as the underdogs in this season.
• Seattle has entered seven games this season favored by -160 or more and is 3-4 in those contests.
• Oddsmakers have given the Astros the worst odds of winning they have seen this season with a +135 moneyline listed for this contest.
• The implied moneyline probablility for this matchup gives the Mariners a 61.5% chance to win.
• The moneyline set for this matchup implies the Astros have a 42.6% chance of walking away with the win.

Mariners vs. Astros: Betting the Spread & Total

• The Mariners have played in 15 games with over/under set, and have combined with opponents to go over the total seven times (7-8-0).
• So far this season, Houston and its opponents have hit the over in 11 of its 15 games with a total.
• The Mariners have covered only 33.3% of their games this season, going 5-10-0 ATS.
• The Astros are 7-8-0 against the spread in their 15 games with a line set by sportsbooks this season.