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

Odds updated as of 1:11 p.m.

In MLB action on Thursday, the Seattle Mariners play the Houston Astros.

Here's what you need to know before checking out today's MLB odds and spreads on FanDuel Sportsbook.

Mariners vs Astros Game Info

• Seattle Mariners (21-23) vs. Houston Astros (17-27)
• 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 probable pitchers are Luis Castillo (0-4) for the Mariners and Mike Burrows (2-4) for the Astros. Castillo's team is 1-7-0 against the spread this season in his starts. Castillo's team is 1-6 this season when he starts and they are the moneyline favorite. The Astros are 2-6-0 against the spread when Burrows starts. The Astros have been the underdog on the moneyline in five of Burrows' starts this season, and they went 2-3 in those games.

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

• The moneyline numbers for Mariners vs. Astros reveal Seattle as the favorite (-136) and Houston as the underdog (+116) despite being the home team.

Mariners vs Astros Spread

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

Mariners vs Astros Over/Under

• The over/under for Mariners-Astros on May 14 is 9. The over is -115, and the under is -105.

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

Mariners vs Astros Betting Trends

• The Mariners have been favorites in 40 games this season and have come away with the win 20 times (50%) in those contests.
• This season Seattle has come away with a win 15 times in 26 chances when named as a favorite of at least -136 on the moneyline.
• Contests with the Mariners have gone over the total set by oddsmakers in 19 of 44 chances this season.
• In 44 games with a line this season, the Mariners have a mark of 16-28-0 against the spread.
• The Astros have gone 11-16 in games they were listed as the moneyline underdog (winning 40.7% of those games).
• When it has played as a moneyline underdog with odds of +116 or longer, Houston has gone 6-11 (35.3%).
• The Astros have played in 44 games with a set over/under, and have combined with their opponents to go over the total 27 times (27-16-1).
• The Astros have collected a 17-27-0 record against the spread this season (covering just 38.6% of the time).

Mariners Player Leaders

• Randy Arozarena leads Seattle in OBP (.389), slugging percentage (.463) and total hits (49) this season. He has a .306 batting average.
• Among the qualifying batters in MLB, his batting average ranks 15th, his on-base percentage ranks 15th, and he is 47th in slugging.
• Arozarena will look for his eighth straight game with a hit in this contest. In his last 10 games he is hitting .385 with two doubles, a home run, a walk and four RBIs.
• Julio Rodriguez is hitting .269 with nine doubles, seven home runs and 15 walks. He's slugging .440 with an on-base percentage of .333.
• He is 55th in batting average, 87th in on-base percentage and 60th in slugging in the major leagues.
• Josh Naylor is batting .247 with a .364 slugging percentage and 20 RBI this year.
• Naylor takes a two-game hitting streak into this game. During his last five outings he is hitting .250 with a double and two walks.
• J.P. Crawford is batting .208 with a .361 OBP and 14 RBI for Seattle this season.
• Crawford heads into this game on a two-game hitting streak. During his last five outings he is hitting .200 with a home run, two walks and three RBIs.

Astros Player Leaders

• Yordan Alvarez has put up an on-base percentage of .418, a slugging percentage of .611, and has 50 hits, all club-highs for the Astros (while batting .309).
• He ranks 14th in batting average, third in on-base percentage and sixth in slugging percentage among all qualified batters in MLB.
• Christian Walker is hitting .275 with 10 doubles, 10 home runs and 16 walks. He's slugging .525 with an on-base percentage of .346.
• He is currently 45th in batting average, 66th in on-base percentage and 18th in slugging percentage among all qualified hitters.
• Jose Altuve has 10 doubles, three home runs and 19 walks while batting .252.
• Isaac Paredes has seven doubles, three home runs and 14 walks while hitting .261.

Mariners vs Astros Head to Head

• 5/13/2026: 4-3 HOU (Favorite: Mariners, Spread: -1.5, Total: 9, Favorite Moneyline: -136, Underdog Moneyline: +116)
• 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)

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