Mariners vs Astros Prediction, Odds, Moneyline, Spread & Over/Under for July 21

Odds updated as of 3:11 PM
The Sunday schedule in MLB includes a matchup between the Seattle Mariners and the Houston Astros.
We've got you covered, in terms of the most important info regarding this game before you take a look at the MLB odds and spreads on FanDuel Sportsbook.
Mariners vs Astros Game Info
- Seattle Mariners (52-48) vs. Houston Astros (52-46)
- Date: Sunday, July 21, 2024
- Time: 4:10 PM ET
- Venue: T-Mobile Park -- Seattle, Washington
- Coverage: SCHN
Mariners vs Astros Odds & Moneyline
- All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
- Moneyline: SEA: (-126) | HOU: (+108)
- Spread: SEA: -1.5 (+168) | HOU: +1.5 (-205)
- Total: 7.5 -- Over: (+106) | Under: (-130)
Mariners vs Astros Probable Starting Pitchers
Probable Pitchers: Bryan Woo (Mariners) - 3-1, 2.45 ERA vs Ronel Blanco (Astros) - 9-4, 2.56 ERA
The probable starters are Bryan Woo (3-1) for the Mariners and Ronel Blanco (9-4) for the Astros. When Woo starts, his team is 5-4-0 against the spread this season. Woo's team has a record of 5-1 this season when he starts and they are the favorite on the moneyline. When Blanco starts, the Astros have gone 11-7-0 against the spread. The Astros have been the moneyline underdog in five of Blanco's starts this season, and they went 4-1 in those matchups.
Mariners vs Astros Prediction & Pick
All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (56%)
Mariners vs Astros Moneyline
- Seattle is the favorite, -126 on the moneyline, while Houston is a +108 underdog on the road.
Mariners vs Astros Spread
- The Mariners are hosting the Astros and are favored by 1.5 runs (+168 to cover) on the runline. Houston is -205 to cover.
Mariners vs Astros Over/Under
- An over/under of 7.5 has been set for Mariners-Astros on July 21, with the over being +106 and the under -130.
Bet on Seattle Mariners vs. Houston Astros on FanDuel today!
Mariners vs Astros Betting Trends
- The Mariners have won in 34, or 56.7%, of the 60 contests they have been named as odds-on favorites in this year.
- This year Seattle has won 29 of 50 games when listed as at least -126 on the moneyline.
- The Mariners and their opponents have hit the over in 41 of their 99 games with a total set by oddsmakers this season.
- The Mariners have an against the spread record of 44-55-0 in 99 games with a line this season.
- The Astros have won 50% of the games this season they were the moneyline underdog (14-14).
- In games it has played as a moneyline underdog with odds of +108 or longer, Houston has gone 6-6 (50%).
- In the 98 games bookmakers have set an over/under for the Astros, they have combined with opponents to go over the total 38 times (38-56-4).
- The Astros have covered 53.1% of their games this season, going 52-46-0 against the spread.
Mariners Player Leaders
- Cal Raleigh leads Seattle in total hits (68) this season while batting .212 with 29 extra-base hits. He has an on-base percentage of .298 and a slugging percentage of .427.
- He is 132nd in batting average, 117th in on-base percentage, and 68th in slugging among qualified hitters in the majors.
- Julio Rodriguez is slashing .265/.317/.375 this season and leads the Mariners with an OPS of .692.
- Among qualifying hitters, his batting average places him 53rd, his on-base percentage 79th, and his slugging percentage 113th.
- J.P. Crawford has collected 59 base hits, an OBP of .297 and a slugging percentage of .348 this season.
- Josh Rojas is batting .244 with a .321 OBP and 17 RBI for Seattle this season.
Astros Player Leaders
- Yordan Alvarez has accumulated an on-base percentage of .379 and has 102 hits, both team-high figures for the Astros. He's batting .293 and slugging .523.
- Including all the qualifying hitters in MLB, his batting average ranks 16th, his on-base percentage is 13th, and he is 10th in slugging.
- Jose Altuve's .457 slugging percentage leads his team. He has a batting average of .305 with an on-base percentage of .352.
- His batting average ranks eighth among all qualified players, his on-base percentage ranks 31st, and he is 46th in slugging.
- Alex Bregman has 18 doubles, two triples, 12 home runs and 31 walks while batting .257.
- Yainer Diaz has 16 doubles, two triples, eight home runs and 14 walks while hitting .287.
Mariners vs Astros Head to Head
- 7/20/2024: 4-2 HOU (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -126, Underdog Moneyline: +108)
- 7/19/2024: 3-0 HOU (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -110, Underdog Moneyline: -106)
- 5/30/2024: 4-0 HOU (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -132, Underdog Moneyline: +112)
- 5/29/2024: 2-1 SEA (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -112, Underdog Moneyline: -104)
- 5/28/2024: 4-2 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -130, Underdog Moneyline: +110)
- 5/27/2024: 3-2 SEA (Favorite: Astros, Spread: -1.5, Total: 7.5, Favorite Moneyline: -126, Underdog Moneyline: +108)
- 5/5/2024: 5-4 SEA (Favorite: Astros, Spread: -1.5, Total: 8, Favorite Moneyline: -132, Underdog Moneyline: +112)
- 5/4/2024: 5-0 SEA (Favorite: Astros, Spread: -1.5, Total: 7.5, Favorite Moneyline: -148, Underdog Moneyline: +126)
- 5/3/2024: 5-3 HOU (Favorite: Astros, Spread: -1.5, Total: 8.5, Favorite Moneyline: -112, Underdog Moneyline: -104)
- 9/27/2023: 8-3 HOU (Favorite: Astros, Spread: -1.5, Total: 7.5, Favorite Moneyline: -120, Underdog Moneyline: +102)
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