Mariners vs. Astros Dunkel MLB Picks, Predictions and Prop Bets - April 13

The Seattle Mariners hope to finish off a sweep of a four-game series versus the Houston Astros, at 4:10 p.m. ET on Monday. George Kirby (1-2, 3.60 ERA) gets the start for the Mariners, who are 7-9 this season and fourth in the AL West. Mike Burrows (1-2, 5.63 ERA) is expected to start for the Astros, who are 6-10 and fifth in the AL West.

The Mariners are moderate favorites on the moneyline (-168) at home over the Astros (+141). The game has an over/under of 7.5 runs.

Mariners vs. Astros Odds, Game Time

• Game day: Monday, April 13, 2026
• Game time: 4:10 p.m. ET
• Location: Seattle, Washington
• Stadium: T-Mobile Park
• Favorite: Mariners (-168)
• Underdog: Astros (+141)
• 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 are 6-7 in games they were favored on the moneyline (winning 46.2% of those games).
• Houston has come away with three wins in the six contests it has been listed as the underdogs in this season.
• Seattle has a record of 2-3 when favored by -168 or more by oddsmakers this season.
• The Astros have played as an underdog of +141 or more just one time this year and came away with a loss in that game.
• Based on this matchup's moneyline, the Mariners have an implied win probability of 62.7%.
• The moneyline set for this matchup implies the Astros have a 41.5% chance of walking away with the win.

Mariners vs. Astros: Betting the Spread & Total

• In the 16 games in which bookmakers have set an over/under for the Mariners, they have combined with opponents to go over the total seven times (7-9-0).
• So far this season, Houston and its opponents have hit the over in 11 of its 16 games with a total.
• The Mariners have a 6-10-0 record ATS this season (covering just 37.5% of the time).
• The Astros are 7-9-0 against the spread in their 16 games that had a posted line this season.