| MATCHUP | Seattle Mariners | Houston Astros |
|---|---|---|
| Team Records | 57-65 | 62-60 |
| Spread | +1.5 -194 | -1.5 159 |
| Moneyline | +109 | -131 |
| Total | Over 8 (-117) | Under 8 (-103) |
| Where | Daikin Park, Houston, Texas | |
| When | Friday, August 14, 2026 | |
| Time | 08:10 PM EDT | |
| TV | MLB.TV | |
In this article, we will formulate a Mariners vs Astros Prediction for this MLB matchup on Friday, August 14th in the opening game of this series. Let’s take a look at the prediction for this MLB matchup.
Houston Astros Preview
The Houston Astros have a 62-60 record this season and are sitting in 1st place in the AL West. They have a 30-29 home record and are coming off a 2-1 away win against the Giants. They will face the Angels and the Athletics next.
The Houston Astros have a .243 batting average this season, a .319 OBP, and a .411 slugging percentage. The Astros’ pitching staff has a 4.54 ERA and a 1.35 WHIP. Yordan Alvarez leads the Astros with a .322 batting average, 35 home runs, and 87 RBI.
Peter Lambert (R) is the projected starting pitcher for the Astros, and he has an 8-6 record, a 3.09 ERA, and a 1.15 WHIP.
Seattle Mariners Preview
The Seattle Mariners have a 57-65 record this season and are sitting in 3rd place in the AL West. They have a 24-36 away record and are coming off a 1-0 away win against the Yankees. They will face the Brewers and the Cubs next.
The Seattle Mariners have a .228 batting average this season, a .307 OBP, and a .374 slugging percentage. The Mariners’ pitching staff has a 3.81 ERA and a 1.21 WHIP. Randy Arozarena leads the Mariners with a .276 batting average and a team-high 52 RBI, while Julio Rodriguez adds a team-high 19 home runs.
George Kirby (R) is the projected starting pitcher for the Mariners, and he has an 8-9 record, a 3.68 ERA, and a 1.27 WHIP.
Seattle Mariners @ Houston Astros Betting Trends: August 14, 2026
- Probable Starting Pitcher: Peter Lambert Record this season: 8-6 ERA: 3.09
- Home Record: 5-4
- Last 5 against Mariners: 0-2
Why the Houston Astros will win
- The Mariners have lost each of their last seven games following a road win.
- The Astros have won each of their last six games against AL West opponents.
- The Mariners have failed to cover the run line in each of their last eight games following a road win.
- The Astros have covered the run line in seven of their last eight games against AL West opponents.
- The Mariners have lost the first inning in each of their last four games against AL West opponents.
- The Astros have led after 3 innings in five of their last six home games against AL West opponents.
- The Astros have led after 5 innings in each of their last five night games at Daikin Park against AL West opponents.
- Probable Starting Pitcher: George Kirby Record this season: 8-9 ERA: 3.68
- Road Record: 3-5
- Last 5 against Astros: 4-1
Why the Seattle Mariners will win
- The Mariners have won seven of their last eight games as underdogs against the Astros.
- The Astros have lost each of their last four games as favorites against the Mariners following a win.
- The Mariners have covered the run line in each of their last 10 games as underdogs against the Astros following a road win.
- The Astros have failed to cover the run line in seven of their last eight games as favorites against the Mariners following a win.
- The Mariners have led after 3 innings in seven of their last eight games at Daikin Park.
- The Mariners have led after 5 innings in each of their last eight games at Daikin Park.
- The Astros have lost the first inning in four of their last five night games against AL West opponents that held a losing record.
Total Runs Facts
- Eight of the Astros’ last nine games against AL West opponents have gone OVER the total runs line.
- Seven of the Mariners’ last eight games against AL West opponents have gone OVER the total runs line.
- There has been no run scored during the first inning in each of the Astros’ last eight home games against American League opponents.
- There has been at least one run scored in the first inning in each of the Mariners’ last five road games against AL West opponents.
Houston Astros Player Prop Facts
- Yainer Diaz has hit a home run in each of his last three appearances with the Astros as favorites against AL West opponents.
- Peter Lambert has recorded five or more strikeouts in eight of his last nine appearances against AL opponents.
- Christian Walker has recorded at least one hit in each of the Astros’ last nine games against AL opponents.
- Yordan Alvarez ranks 1st amongst qualified players for Batting Average (.322) this season.
Seattle Mariners Player Prop Facts
- Randy Arozarena has hit a home run in four of the Mariners’ last five road games against AL opponents.
- George Kirby has recorded a win in four of his last five appearances against the Astros.
- George Kirby has recorded six or more strikeouts in six of his last seven appearances against the Astros.
- Josh Naylor has recorded at least one hit in each of his last 11 appearances with the Mariners as road underdogs.
- Josh Naylor ranks T10th in the league in Steals (23) this season.
Matchup/League Facts
- The Astros rank 29th in the league for steals this season (38).
- The Astros rank 29th in the league for walks allowed this season (504).
- The Mariners rank 30th in the league for runs scored this season (469).
- The Mariners rank 30th in the league for doubles this season (143).
Mariners vs Astros Prediction
The Mariners are 9-1 in their last 10 meetings against the Astros and are 5-1 in their last 6 visits in Houston.
In this Mariners vs Astros Prediction, the Astros are coming as -125 home favorites. I like the pitching in this matchup, as both pitchers have a combined 6.77 ERA and have been in very good form, having given up two runs or less in 13 of their last 14 starts combined. Both offenses have been ice-cold, with the Mariners having scored two runs or less in six of their last seven games and the Astros in four of their last five. Take the under 8 in this one.