Mariners vs Astros Prediction, Odds, Moneyline, Spread & Over/Under for May 14

Odds updated as of 10:11 p.m.

The Seattle Mariners are among the MLB squads playing on Thursday, up against the Houston Astros.

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

Mariners vs Astros Game Info

• Seattle Mariners (21-22) vs. Houston Astros (16-27)
• Date: Thursday, May 14, 2026
• Time: 2:10 p.m. ET
• Venue: Daikin Park -- Houston, Texas
• Coverage: SCHN and Mariners.TV

Mariners vs Astros Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-136) | HOU: (+116)
• Spread: SEA: -1.5 (+114) | HOU: +1.5 (-137)
• Total: 9 -- Over: (-115) | Under: (-105)

Mariners vs Astros Probable Starting Pitchers

Probable Pitchers: Luis Castillo (Mariners) - 0-4, 6.57 ERA vs Mike Burrows (Astros) - 2-4, 5.04 ERA

The Mariners will give the nod to Luis Castillo (0-4) against the Astros and Mike Burrows (2-4). Castillo and his team have a record of 1-7-0 against the spread when he starts. Castillo's team has won 14.3% of his starts when they are favored on the moneyline (1-6). The Astros have gone 2-6-0 against the spread when Burrows starts. The Astros are 2-3 in Burrows' five starts this season that they were the underdog on the moneyline.

Mariners vs Astros Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (52.3%)

Mariners vs Astros Moneyline

• Looking at the moneyline for Astros-Mariners, Houston is the underdog at +116, and Seattle is -136 playing on the road.

Mariners vs Astros Spread

• The Mariners are favored by 1.5 runs on the road against the Astros. The Mariners are +114 to cover the spread, while the Astros are -137.

Mariners vs Astros Over/Under

• Mariners versus Astros on May 14 has an over/under of 9 runs, with the odds on the over -115 and the under set at -105.

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

Mariners vs Astros Betting Trends

• The Mariners have been favorites in 39 games this season and have come away with the win 20 times (51.3%) in those contests.
• Seattle has a record of 15-10 when favored by -136 or more this year.
• The Mariners and their opponents have hit the over in 19 of their 43 games with a total set by oddsmakers this season.
• The Mariners have an against the spread record of 16-27-0 in 43 games with a line this season.
• The Astros have won 10 of the 26 games they were the underdog on the moneyline this season (38.5%).
• Houston has gone 6-11 in games it has played as a moneyline underdog with odds of +116 or longer (35.3%).
• The Astros have played in 43 games with a set over/under, and have combined with opponents to go over the total 27 times (27-15-1).
• The Astros have gone 16-27-0 ATS this season.

Mariners Player Leaders

• Randy Arozarena leads Seattle with 47 hits and an OBP of .389, plus a team-best slugging percentage of .465. He's batting .303.
• Among all qualified hitters in the majors, he is 17th in batting average, 18th in on-base percentage, and 46th in slugging.
• Arozarena will look for his seventh straight game with a hit in this contest. In his last 10 games he is hitting .351 with two doubles, a home run, two walks and four RBIs.
• Julio Rodriguez is batting .269 with eight doubles, seven home runs and 14 walks. He's slugging .439 with an on-base percentage of .332.
• He is 55th in batting average, 86th in on-base percentage and 55th in slugging among qualified hitters.
• Josh Naylor has 39 hits this season and has a slash line of .247/.306/.367.
• J.P. Crawford has four home runs, 13 RBI and a batting average of .200 this season.

Astros Player Leaders

• Yordan Alvarez has accumulated a team-high OBP (.413) and slugging percentage (.616), while pacing the Astros in hits (49, while batting .308).
• Including all qualified hitters in the majors, his batting average puts him 13th, his on-base percentage ranks fifth, and he is sixth in slugging.
• Christian Walker has 10 doubles, nine home runs and 16 walks while batting .277. He's slugging .516 with an on-base percentage of .351.
• His batting average ranks 43rd among all qualified players, his on-base percentage is 60th, and he is 21st in slugging.
• Jose Altuve is hitting .257 with 10 doubles, three home runs and 18 walks.
• Isaac Paredes has seven doubles, three home runs and 14 walks while batting .263.

Mariners vs Astros Head to Head

• 5/12/2026: 10-2 SEA (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -200, Underdog Moneyline: +168)
• 5/11/2026: 3-1 SEA (Favorite: Mariners, Spread: -1.5, Total: 8.5, Favorite Moneyline: -154, Underdog Moneyline: +130)
• 4/13/2026: 6-2 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -178, Underdog Moneyline: +150)
• 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)

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