Astros vs. Mariners Betting Odds, Pitching Matchup – July 21, 2024

The Houston Astros (51-46) will look to complete a series sweep as they take a 1-0 lead into their final matchup against the Seattle Mariners (52-47) at 4:10 PM ET Sunday from T-Mobile Park. The Astros are favored (-111) by sportsbooks. Ronel Blanco will get the ball for Houston while Seattle will counter with Bryan Woo.

Be sure to check out our betting primer for this matchup, and uncover all of our expert MLB picks, too!

Odds to Win

Astros to win vs Mariners -111

Bet $20, Payout $38.02

Astros vs. Mariners Betting Lines

  • Favorite: Astros (-111)
  • Underdog: Mariners (-108)
  • Over/under: 7

Astros vs. Mariners Betting Insights

  • The Astros have been chosen as favorites in 70 games this year and have walked away with the win 38 times (54.3%) in those games.
  • This season Houston has been victorious 37 times in 69 chances when named as a favorite of at least -111 on the moneyline.
  • The moneyline set for this matchup implies the Astros have a 52.6% chance of walking away with the win.
  • The Mariners have compiled a 17-19 record in games they were listed as the moneyline underdog (winning 47.2% of those games).
  • Seattle has a 17-17 record (winning 50% of its games) when playing as a moneyline underdog of -108 or longer.
  • Based on this contest’s moneyline, the Mariners have an implied win probability of 51.9%.

Astros vs. Mariners Hitting Leaders

  • Yordan Alvarez leads Houston in home runs (19) and runs batted in (52) this season while batting .297.
  • Of all MLB batters, Alvarez ranks 14th in batting average, 12th in on-base percentage, and 10th in slugging.
  • Jose Altuve is batting .305 to lead Houston, while adding 14 homers and 44 runs batted in this season.
  • Cal Raleigh has accumulated a team-high 20 home runs and 61 runs batted in.
  • Among all hitters in the big leagues, Raleigh ranks 13th in home runs and 20th in RBI.
  • Julio Rodriguez’s .265 batting average paces his team.

Astros vs. Mariners Pitching Rankings

  • The Astros have an 8.8 K/9 this season as a pitching staff, sixth-best in baseball.
  • The Astros have pitched to a 4.00 ERA this season, which ranks 15th in baseball.
  • Astros pitchers have a 1.296 WHIP this season, 20th in the majors.
  • The pitching staff for the Mariners has a collective 8.5 K/9, which ranks 17th in the majors.
  • Seattle has the second-ranked team ERA among all MLB pitching staffs (3.46).
  • The Mariners have the first-lowest WHIP in baseball (1.075).