- Matchup: Houston Astros vs Seattle Mariners
- Date: Saturday, April 11, 2026
- Venue: T-Mobile Park, Seattle, WA
- Broadcast: MLB.TV
- Betting Odds: Houston (-132) Seattle (+110)
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The Seattle Mariners (4-9) are set to face off against the Houston Astros (6-7) at T-Mobile Park this Saturday. In this contest, the Astros are favored at -132 while the Mariners are positioned at +110. The game features an over/under of 8 runs, with Lance McCullers Jr. and Luis Castillo slated to take the mound.
The Astros have a slugging percentage of .453 and have struck out 101 times while earning 67 walks. With 73 RBIs and 122 hits this season, their batting average stands at .271. The team has recorded 34 doubles and 16 home runs, contributing to a total of 79 runs scored, and their on-base percentage is an impressive .371. On average, the Houston Astros are scoring 6.1 runs per game, placing them 2nd in the league.
This season, the Astros have an ERA of 6.05, ranking 29th in the league, with 129 strikeouts. They’ve permitted 20 home runs and 78 runs, also placing 29th in the league. The pitching staff has issued 70 walks, resulting in a team FIP of 5.22. Houston has allowed 114 hits (9.1 per 9 innings) and 76 earned runs, with a K/BB ratio of 1.84 and a WHIP of 1.63.
The Astros have utilized 40 relief pitchers this season. Their bullpen has inherited 28 base runners, with 39.3% of these scoring. The relievers have achieved a total of 3 holds, ranking 28th, and have stepped into 6 save opportunities, converting all 3 into saves for a perfect save percentage of 100.0%.
The Detroit Tigers have made 339 putouts, alongside 95 assists and 4 errors. Their fielding percentage is currently at .991, placing them 7th in the league, with 17 double plays. The Astros have converted 66.3% of balls in play into outs across 1,017 innings, ranking them 28th in the league.
McCullers has pitched 785 innings, accumulating 874 strikeouts and boasts a career ERA of 3.69 (322 earned runs). With a WHIP of 1.289 and allowing 673 hits (7.7 hits per 9 innings), he has issued 339 walks throughout his career, sporting a FIP of 3.64 after facing 3,333 batters.
On the other side, the Seattle Mariners have hit 11 home runs this season, driving in 39 runs. They have 13 doubles, 49 walks, and have scored 40 runs. Seattle’s on-base percentage is .280, with a team batting average of .184. The Mariners’ slugging percentage stands at .301, averaging 3.08 runs per game (30th in MLB) and have struck out 133 times (2nd in the league) with 78 hits.
The Mariners possess a team WHIP of 0.955 with a FIP of 2.86. Their K/BB ratio is an impressive 9.20 (119 strikeouts to 26 walks), making them 7th in the league for total hits allowed with 85. They’ve given up 8 home runs and average 3.25 runs per 9 innings (3rd in MLB), allowing 42 runs with an ERA of 2.63 (34 earned runs).
In save opportunities, the Mariners have recorded 1 hold and 2 blown saves. Seattle relief pitchers have faced 4 save chances, converting 2 successfully. Their inherited score rate is 27.3% from 11 inherited runners, and they have appeared 15 times in high-leverage situations with runners on base. Currently, they stand 25th in the league with a save percentage of 50.0%, having deployed 36 relief pitchers this season.
Defensively, the Seattle Mariners have executed 15 double plays, maintaining a fielding rate of .983 (17th in the league). They have amassed 114 assists, 8 errors, and 350 putouts throughout the season. After 1,050 innings, they boast a defensive efficiency of 71.8% (7th in MLB).
Castillo (84-84 career record) has an ERA of 3.55, surrendering 7.7 hits per nine innings. His K/BB ratio is 3.30, having faced 5,865 opposing hitters. He has allowed a total of 560 earned runs with a WHIP of 1.179 and possesses a FIP of 3.5. Throughout his career, Castillo has given up 1,217 hits while tallying 1,504 strikeouts over 1,419 innings.
Who will prevail in tonight’s MLB matchup against the spread or on the moneyline?
Prediction: Choose Houston (-132)
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