Mariners vs Astros Prediction, Odds, Moneyline, Spread & Over/Under for April 13

Odds updated as of 4:12 p.m.

The MLB schedule on Monday includes the Seattle Mariners facing the Houston Astros.

Before you do any MLB betting on this matchup at FanDuel Sportsbook, here's what you need to know.

Mariners vs Astros Game Info

• Seattle Mariners (7-9) vs. Houston Astros (6-10)
• Date: Monday, April 13, 2026
• Time: 4:10 p.m. ET
• Venue: T-Mobile Park -- Seattle, Washington
• Coverage: Mariners.TV and SCHN

Mariners vs Astros Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-178) | HOU: (+150)
• Spread: SEA: -1.5 (+114) | HOU: +1.5 (-137)
• Total: 7.5 -- Over: (-115) | Under: (-105)

Mariners vs Astros Probable Starting Pitchers

Probable Pitchers: George Kirby (Mariners) - 1-2, 3.60 ERA vs Mike Burrows (Astros) - 1-2, 5.63 ERA

The probable starters are George Kirby (1-2) for the Mariners and Mike Burrows (1-2) for the Astros. Kirby and his team have a record of 1-2-0 against the spread when he starts. Kirby's team has been victorious in 33.3% of the games he's started as the moneyline favorite with a record of 1-2. The Astros have a 1-2-0 record against the spread in Burrows' starts. The Astros were named the moneyline underdog for one Burrows start this season -- they won.

Mariners vs Astros Moneyline

• Looking at the moneyline for Astros-Mariners, Houston is the underdog at +150, and Seattle is -178 playing at home.

Mariners vs Astros Spread

• The Astros are at the Mariners, and are +1.5 on the runline. The Astros are +114 to cover the spread, and the Mariners are -137.

Mariners vs Astros Over/Under

• The Mariners-Astros contest on April 13 has been given an over/under of 7.5 runs. The over is set at -115 and the under at -105.

Bet on Seattle Mariners vs. Houston Astros on FanDuel today!

Mariners vs Astros Betting Trends

• The Mariners have been favorites in 13 games this season and have come away with the win six times (46.2%) in those contests.
• This year Seattle has won two of four games when listed as at least -178 on the moneyline.
• The Mariners and their opponents have gone over in seven of their 16 games with a total set by sportsbooks this season.
• The Mariners are 6-10-0 against the spread in their 16 games that had a posted line this season.
• The Astros have won 40% of the games this season they were the underdog on the moneyline (2-3).
• Houston has played as a moneyline underdog of +150 or longer in just one game this season, which it lost.
• The Astros have had an over/under set by bookmakers 16 times, and have combined with opponents to go over the total in 11 of those games (11-5-0).
• The Astros have covered 43.8% of their games this season, going 7-9-0 against the spread.

Mariners Player Leaders

• Randy Arozarena has an OPS of .826, fueled by an OBP of .426 to go with a slugging percentage of .400. He has a .291 batting average, as well.
• Among qualified hitters in MLB, he ranks 47th in batting average, 14th in on-base percentage, and 84th in slugging.
• Cole Young has two doubles, a triple, two home runs and seven walks. He's batting .259 and slugging .444 with an on-base percentage of .355.
• His batting average ranks 69th among qualified players, his on-base percentage 63rd, and his slugging percentage 60th.
• Brendan Donovan has 12 hits and is batting .293 this season.
• Dominic Canzone has been key for Seattle with seven hits, an OBP of .289 plus a slugging percentage of .471.

Astros Player Leaders

• Yordan Alvarez has put up an on-base percentage of .500 and has 18 hits, both team-high figures for the Astros. He's batting .340 and slugging .755.
• Including all qualified hitters in the majors, he ranks 10th in batting average, first in on-base percentage and second in slugging percentage.
• Christian Walker is hitting .298 with six doubles, three home runs and seven walks. He's slugging .561 with an on-base percentage of .375.
• Including all qualified hitters, he ranks 40th in batting average, 43rd in on-base percentage and 21st in slugging percentage.
• Jose Altuve has a .526 slugging percentage, which paces the Astros.
• Carlos Correa has three doubles, a home run and six walks while batting .294.

Mariners vs Astros Head to Head

• 4/12/2026: 6-1 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -190, Underdog Moneyline: +160)
• 4/11/2026: 8-7 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -152, Underdog Moneyline: +128)
• 4/10/2026: 9-6 SEA (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -136, Underdog Moneyline: +116)
• 9/21/2025: 7-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -148, Underdog Moneyline: +126)
• 9/20/2025: 6-4 SEA (Favorite: Astros, Spread: -1.5, Total: 8, Favorite Moneyline: -108, Underdog Moneyline: -108)
• 9/19/2025: 4-0 SEA (Favorite: Astros, Spread: -1.5, Total: 7.5, Favorite Moneyline: -108, Underdog Moneyline: -108)
• 7/20/2025: 11-3 HOU (Favorite: Mariners, Spread: -1.5, Total: 6.5, Favorite Moneyline: -144, Underdog Moneyline: +122)
• 7/19/2025: 7-6 SEA (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -132, Underdog Moneyline: +112)
• 7/18/2025: 6-1 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -142, Underdog Moneyline: +120)
• 5/25/2025: 5-3 HOU (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -138, Underdog Moneyline: +118)

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