Mariners vs Astros Prediction, Odds, Moneyline, Spread & Over/Under for July 19

Odds updated as of 9:11 a.m.

The Seattle Mariners are among the MLB squads busy on Saturday, up against 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 (52-45) vs. Houston Astros (56-41)
• Date: Saturday, July 19, 2025
• Time: 9:40 p.m. ET
• Venue: T-Mobile Park -- Seattle, Washington
• Coverage: MLB Network, ROOT Sports NW, and SCHN

Mariners vs Astros Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-122) | HOU: (+104)
• Spread: SEA: -1.5 (+168) | HOU: +1.5 (-205)
• Total: 8 -- Over: (-100) | Under: (-122)

Mariners vs Astros Probable Starting Pitchers

Probable Pitchers: Logan Evans (Mariners) - 3-3, 4.65 ERA vs Lance McCullers (Astros) - 2-4, 6.48 ERA

The Mariners will give the ball to Logan Evans (3-3, 4.65 ERA), who is eyeing win No. 4 on the season, and the Astros will turn to Lance McCullers (2-4, 6.48 ERA). Evans and his team are 3-6-0 ATS this season when he starts. Evans' team has won 60% of his starts when they are favored on the moneyline (3-2). The Astros are 5-5-0 ATS in McCullers' 10 starts that had a set spread. The Astros were the moneyline underdog for four McCullers starts this season -- they won every time.

Mariners vs Astros Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (53.4%)

Mariners vs Astros Moneyline

• Looking at the moneyline for Mariners-Astros, Seattle is the favorite at -122, and Houston is +104 playing on the road.

Mariners vs Astros Spread

• The Astros are +1.5 on the spread (-205 to cover), and Seattle is +168 to cover the runline.

Mariners vs Astros Over/Under

• Mariners versus Astros, on July 19, has an over/under of 8, with the over being -100 and the under -122.

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

Mariners vs Astros Betting Trends

• The Mariners have been chosen as favorites in 60 games this year and have walked away with the win 34 times (56.7%) in those games.
• Seattle has a record of 28-18 when favored by -122 or more this year.
• The Mariners' games have gone over the total in 51 of their 94 opportunities.
• The Mariners have posted a record of 42-52-0 against the spread this season.
• The Astros have won 17 of the 28 games they were listed as the moneyline underdog this season (60.7%).
• When it has played as a moneyline underdog with odds of +104 or longer, Houston has gone 10-7 (58.8%).
• The Astros have had an over/under set by oddsmakers 96 times, and have combined with opponents to go over the total in 40 of those games (40-54-2).
• The Astros have covered 50% of their games this season, going 48-48-0 against the spread.

Mariners Player Leaders

• Cal Raleigh has 91 hits, which is best among Seattle hitters this season, while batting .259 with 54 extra-base hits. He has an on-base percentage of .375 and a slugging percentage of .630.
• Among all qualifying hitters in baseball, he ranks 78th in batting average, 16th in on-base percentage, and second in slugging.
• Julio Rodriguez has 17 doubles, three triples, 14 home runs and 30 walks. He's batting .251 and slugging .415 with an on-base percentage of .315.
• Among all qualifying players, he is 96th in batting average, 109th in on-base percentage and 91st in slugging percentage.
• Randy Arozarena has collected 89 base hits, an OBP of .358 and a slugging percentage of .470 this season.
• Arozarena heads into this game with three games in a row with at least one hit. In his last five games he is batting .333 with a double, three home runs, three walks and five RBIs.
• J.P. Crawford is slashing .289/.390/.390 this season and leads the Mariners with an OPS of .779.
• Crawford heads into this game on a 15-game hitting streak. In his last 10 outings he is batting .325 with three doubles, a home run, five walks and seven RBIs.

Astros Player Leaders

• Isaac Paredes is hitting .258 with 15 doubles, a triple, 19 home runs and 49 walks. He's slugging .470 with an on-base percentage of .359.
• Including all qualified hitters, he ranks 83rd in batting average, while his on-base percentage ranks 38th and he is 41st in slugging.
• Jose Altuve is batting .274 with 14 doubles, a triple, 17 home runs and 33 walks. He's slugging .460 with an on-base percentage of .333.
• He is currently 50th in batting average, 72nd in on-base percentage and 53rd in slugging percentage among all qualifying hitters.
• Yainer Diaz is hitting .243 with 11 doubles, a triple, 13 home runs and 14 walks.
• Cam Smith is hitting .274 with 16 doubles, two triples, seven home runs and 27 walks.

Mariners vs Astros Head to Head

• 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)
• 5/24/2025: 2-1 HOU (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -110, Underdog Moneyline: -106)
• 5/23/2025: 5-3 SEA (Favorite: Astros, Spread: -1.5, Total: 8.5, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 5/22/2025: 9-2 HOU (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -132, Underdog Moneyline: +112)
• 4/9/2025: 7-6 SEA (Favorite: Astros, Spread: -1.5, Total: 7.5, Favorite Moneyline: -142, Underdog Moneyline: +120)
• 4/8/2025: 2-1 HOU (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 4/7/2025: 4-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -158, Underdog Moneyline: +134)
• 9/25/2024: 8-1 SEA (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -148, Underdog Moneyline: +126)
• 9/24/2024: 4-3 HOU (Favorite: Astros, Spread: -1.5, Total: 7, Favorite Moneyline: -130, Underdog Moneyline: +110)

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