Mariners vs Astros Prediction 8/16/26 MLB Picks Today

In this article, we will formulate a Mariners vs Astros Prediction for this MLB matchup on Sunday, August 16^th in the third game of this series. Let’s take a look at the prediction for this MLB matchup.

Houston Astros Preview

The Houston Astros have a 63-61 record this season and are sitting in 1st place in the AL West. They have a 31-30 home record and are coming off a 5-10 home loss against the Mariners. They will face the Angels and the Athletics next.

The Houston Astros have a .244 batting average this season, a .319 OBP, and a .413 slugging percentage. The Astros’ pitching staff has a 4.60 ERA and a 1.36 WHIP. Yordan Alvarez leads the Astros with a .321 batting average, while leading the team in RBI with 88 and adding a team-high 36 home runs.

Hunter Brown (R) is the projected starting pitcher for the Astros, and he has a 3-2 record, a 3.68 ERA, and a 1.27 WHIP.

Seattle Mariners Preview

The Seattle Mariners have a 58-66 record this season and are sitting in 3rd place in the AL West. They have a 25-37 away record and are coming off a 10-5 away win against the Astros. They will face the Brewers and the Cubs next.

The Seattle Mariners have a .230 batting average this season, a .309 OBP, and a .377 slugging percentage. The Mariners’ pitching staff has a 3.86 ERA and a 1.21 WHIP. Randy Arozarena leads the Mariners with a .275 batting average, while Cole Young leads the team in RBI with 56 and Julio Rodriguez adds a team-high 19 home runs.

Bryan Woo (R) is the projected starting pitcher for the Mariners, and he has an 8-8 record, a 4.15 ERA, and a 1.10 WHIP.

Seattle Mariners @ Houston Astros Betting Trends: August 16, 2026

• Probable Starting Pitcher: Hunter Brown      Record this season: 3-2      ERA: 3.68
• Home Record: 2-1
• Last 5 against Mariners: 1-2

Why the Houston Astros will win

• The Mariners have lost each of their last eight games following a road win.
• The Astros have won nine of their last 10 night games following a home loss.
• The Mariners have failed to cover the run line in each of their last nine games following a road win.
• The Astros have covered the run line in seven of their last eight night games at Daikin Park following a home loss.
• The Astros have led after 5 innings in six of their last seven night games at Daikin Park against AL West opponents.
• The Mariners have lost the first inning in five of their last six games against AL West opponents.
• The Astros have led after 3 innings in four of their last five games against AL West opponents.

• Probable Starting Pitcher: Bryan Woo      Record this season: 8-8      ERA: 4.15
• Road Record: 1-8
• Last 5 against Astros: 3-2

Why the Seattle Mariners will win

• The Mariners have won 16 of their last 20 games as underdogs against AL West opponents.
• The Astros have lost four of their last five games as home favorites against the Mariners following a loss.
• The Astros have failed to cover the run line in each of their last 11 Sunday night home games.
• The Mariners have covered the run line in 18 of their last 20 games as underdogs against AL West opponents.
• The Mariners have won the first inning in three of their last four games against the Astros.
• The Mariners have led after 3 innings in each of their last seven Sunday games against the Astros.
• The Mariners have led after 5 innings in nine of their last 10 games at Daikin Park.

Total Runs Facts

• Each of the Mariners’ last seven road games against AL West opponents have gone OVER the total runs line.
• Each of the Astros’ last six games against AL West opponents have gone OVER the total runs line.
• There has been at least one run scored in the first inning in each of the Mariners’ last seven road games against AL West opponents.
• There has been no run scored during the first inning in each of Hunter Brown’s last five appearances as a starter.

Houston Astros Player Prop Facts

• Yainer Diaz has hit a home run in three of his last four appearances with the Astros as favorites against AL West opponents.
• Hunter Brown has recorded seven or more strikeouts in three of his last four appearances against the Mariners.
• Jose Altuve has recorded two or more hits in each of the Astros’ last eight games against AL opponents that held a losing record.
• Yordan Alvarez ranks 1st amongst qualified players for Batting Average (.321) this season.

Seattle Mariners Player Prop Facts

• Randy Arozarena has hit a home run in four of the Mariners’ last seven road games against AL opponents.
• Bryan Woo has recorded a win in three of his last four appearances against AL West opponents.
• Josh Naylor has recorded at least one hit in each of his last 13 appearances with the Mariners as road underdogs.

Matchup/League Facts

• The Astros rank 29th in the league for steals this season (40).
• The Astros rank 29th in the league for walks allowed this season (510).
• The Mariners rank 30th in the league for runs scored this season (486).
• The Mariners rank 30th in the league for doubles this season (149).

Mariners vs Astros Prediction

The Mariners are 8-2 in their last 10 meetings against the Astros and are 4-2 in their last 6 visits in Houston.

In this Mariners vs Astros Prediction, the Astros are coming as -135 home favorites. Both games in this series have been extremely high-scoring ones, with 15 and 17 total runs. Both pitchers have good numbers but their home/away splits have been terrible, with Woo having a 6.22 road ERA and Brown a 4.17 home ERA. The Mariners’ bullpen has been atrocious lately and both offenses have been on fire, scoring 12.4 runs per game combined against right-handed pitching in their last 5 games. Take the over 7.5 in this one.