Seattle Mariners vs Houston Astros Picks and Prediction for Sunday, August 16, 2026

The Seattle Mariners and Houston Astros close out their series Sunday night at Daikin Park in Houston, Texas. First pitch is scheduled for 7:20 PM ET on August 16, with NBC carrying the game nationally. Seattle enters at 57-66 overall and 24-37 on the road, while Houston is 63-60 overall and 31-29 at home. At the time of this writing, the odds were not released. Before making your wagers, check out our free MLB picks for more baseball predictions and analysis.

Starting Pitchers

Bryan Woo is scheduled to take the mound for Seattle with an 8-8 record, 4.15 ERA, and 1.10 WHIP through 132.1 innings. He has allowed 118 hits and 13 home runs while striking out 132 and walking only 28. Houston counters with Hunter Brown, who is 3-2 with a 3.68 ERA and 1.27 WHIP through 63.2 innings. Brown has surrendered 46 hits and eight home runs while collecting 67 strikeouts against 35 walks. Brown owns the better ERA, but Woo has been considerably better at limiting walks and baserunners.

Seattle Searching for Offensive Consistency

Seattle comes into this matchup at 57-66 overall, including a difficult 24-37 record away from home. The Mariners have lost four of their last five completed games. Their lone victory during that stretch was a 1-0 win over New York, while the losses came 10-7 in 10 innings against Houston, 10-5 and 4-1 against New York, and 4-1 against Tampa Bay.

The Mariners are batting .229 as a team with a .308 on-base percentage and .375 slugging percentage. Seattle has scored 476 runs on 928 hits and has produced 142 home runs. The pitching staff has been the stronger part of the club, posting a 3.85 ERA and 1.21 WHIP with 1,043 strikeouts and 309 walks.

Seattle's clearest path to winning this game comes from its pitching. The Mariners have substantial season advantages over Houston in team ERA and WHIP, while Sunday's scheduled starter has issued only 28 walks across 132.1 innings. The problem has been an offense that trails Houston significantly in batting average, runs, hits, home runs, on-base percentage, and slugging percentage.

Houston Holding the Advantage in the AL West

Houston enters at 63-60 and sits atop the American League West. The Astros are 31-29 at Daikin Park and have won three of their last five completed games. That stretch includes Friday's 10-7 extra-inning victory over Seattle along with wins of 2-1 and 6-3 over San Francisco. Houston's two losses came against San Francisco and San Diego.

The Astros are batting .244 with a .319 on-base percentage and .412 slugging percentage. Houston has scored 569 runs while accumulating 1,012 hits and 164 home runs. The pitching numbers have been considerably less impressive, with a 4.55 ERA and 1.35 WHIP. Houston has recorded 1,072 strikeouts while issuing 508 walks.

Houston's offensive production provides the biggest separation between these teams. The Astros have scored 93 more runs than Seattle and hold advantages in virtually every major offensive category provided. Houston also has the better overall record, the better recent form, and home-field advantage. The weakness is a pitching staff that has allowed considerably more baserunners than Seattle.

Seattle Mariners vs Houston Astros Picks and Prediction

Pick: Houston Astros Moneyline

Houston gets the nod at home. Seattle has the better season-long pitching numbers, and Woo's 1.10 WHIP makes this far from an easy matchup for the Astros. However, Houston has the more productive offense and enters having won three of its last five while Seattle has dropped four of five. The Mariners are also only 24-37 on the road. With Brown carrying a 3.68 ERA into the matchup and Houston owning the stronger offensive profile, the Astros are the preferred side.

Pick: Over 8.0

Take the over if the total is set at 8.0. Houston's offense has generated 569 runs and 164 home runs this season, while its pitching staff has posted a 4.55 ERA and 1.35 WHIP. Seattle has struggled offensively overall, but Friday's series opener still produced 17 runs in Houston. The combination of Houston's offensive advantage and the Astros' vulnerable season-long pitching numbers makes the over worth considering at eight runs.

Preview was completed prior to game play on Saturday.