Houston Astros vs Seattle Mariners Prediction, 4/12/2026 MLB Picks, Best Bets & Odds

Game: Houston Astros vs Seattle Mariners

Date: Sunday, April 12, 2026

Location: T-Mobile Park in Seattle, WA

TV: MLB.TV

Odds/Point Spread: Houston (-145) Seattle (+125)

T-Mobile Park is where the Seattle Mariners (5-9) will try to beat the Houston Astros (6-8) on Sunday. The moneyline on this matchup has the Astros at -145 and the Mariners are coming in at +125. The total is 9. The expected starting pitchers will be Cody Bolton and Logan Gilbert.

Houston has a slugging % of .449 and have struck out 107 times, while taking a walk on 71 occasions. They have accrued 79 runs batted in as well as 130 hits for the year, and their average at the plate sits at .270. The Astros have hit 35 doubles as a squad and have knocked 17 balls out of the stadium. They have 85 runs while holding a team on-base percentage of .372. As a unit, the Houston Astros are notching 6.1 runs per game, which has them sitting at 2nd in baseball.

Get all of our MLB Betting Picks

Their strikeout to walk ratio sits at 1.74 and the pitching staff has earned a collective WHIP of 1.68. Astros pitchers have conceded 21 home runs and 87 runs (30th in MLB). Houston has given up 123 base knocks (9.1 per 9 innings) as well as 85 earned runs. The Astros hold a team earned run average of 6.32 over the course of the season (30th in the league), and their staff has struck out 139 batters. Their pitching staff has walked 80 opposing hitters and their FIP sits at 5.29 as a team on the season.

Astros relief pitchers have gone to the mound with runners on 19 times in addition to having 7 appearances in high leverage situations. The relief pitchers have racked up 3 holds on the year (29th in baseball). The Astros relief pitchers have accumulated a save rate of 100.0% and have come into the game in 6 save situations. They have accumulated 3 saves on the campaign and have not converted 0 of their 3 save opportunities. The bullpen pitchers have inherited 32 base runners for the year with 34.4% of those players ended up scoring. The Astros have sent 44 relief pitchers to the mound on the campaign.

The Astros have transformed 66.1% of baseballs in play into outs in their 1,089 innings, which has them sitting at 28th in MLB. The Detroit Tigers have earned 363 putouts at this point in the season, as well as 101 assists and 4 errors. Their fielding percentage is currently at .991 which ranks 4th in baseball, and have accumulated 17 double plays.

Bolton has taken the hill for 49 innings and has earned 50 K's during his career. Bolton (1-0 career mark) sits with a FIP of 5.42 while he has gone up against 230 hitters in the majors. His earned run average is 5.50 (30 earned runs allowed) and he has a WHIP of 1.731. He has given up 58 base hits (10.6 hits per nine innings) and has 27 free passes.

The Seattle Mariners are sitting with a team on-base percentage of .297 as well as a team batting average of .190 so far this year. They have struck out on 143 occasions (3rd in baseball) and have 87 base hits. Seattle has a total of 12 home runs on the year and 46 runs batted in. The Mariners hold a team slugging % of .311 and they tally 3.50 runs per game (26th in the league). They have recorded 15 doubles, while getting a free base 59 times and earning 49 runs.

The Seattle pitching staff have surrendered 48 runs this season while holding a team ERA of 2.88 (40 earned runs allowed). They have given up 9 homers and they surrender 3.45 runs per 9 innings (3rd in the league). The Mariners have a team WHIP of 0.982 and have a FIP of 2.99 as a staff on the season. They currently have a strikeout to walk ratio of 9.00 (125 strikeouts against 30 bases on balls). They rank 6th in baseball as a pitching staff in total hits relinquished with 93.

They rank 21st in baseball with a save percentage of 60.0%, and they have sent 41 bullpen pitchers to the hill over the course of the season. Their relief pitchers have stepped onto the hill 15 times in high leverage situations in addition to 12 occasions with runners on. Sitting with 9 save situations, the Mariners have earned 4 holds and also 2 blown saves. Seattle has had bullpen pitchers step onto the mound in 5 save opportunities and they have walked away with 3 saves. Seattle bullpen pitchers have an inherited score rate of 25.0% of 12 inherited base runners.

In 1,131 innings played, the Mariners are sitting with a efficiency on defense of 71.7% (7th in professional baseball). The Seattle Mariners have turned 19 double plays and own a fielding percentage of .984 (16th in baseball). The Mariners have 122 assists, 8 errors and have accounted for 377 putouts for the season.

So far in his career, Gilbert has surrendered 721 base hits while he has totaled 902 strikeouts in 851 innings. He has given up 342 ER's while earning a WHIP of 1.063 and having a FIP of 3.6. His strikeout to walk ratio is 4.90 and he has faced 3,444 opposing hitters in his MLB career. Gilbert (47-38 mark in his career) has a 3.62 earned run average while allowing 7.6 hits per 9 innings.

Who will win tonight's MLB game against the spread or moneyline?

Tony Sink's Pick: Take Houston (-145)

Get $60 worth of FREE premium member picks. No Obligation. No Salesman. No Credit Card. Fast Sign up with Instant Access Click Here

Get MLB picks on every single game, or if you want our very best bets by the experts, sign up for your free $60 account with a guarantee.