Jack Flaherty Detrot Tigers Starting Pitcher

Astros vs Tigers Pick + Props: Value on Under 8 Total With Struggling Rookie

By Rich Crew

Detroit comes into this series opener riding high after taking five of seven on their recent road trip, while Houston looks to bounce back from a disastrous 12-0 shutout loss to Baltimore yesterday. Despite Detroit having the edge in the standings, this pitching matchup features significant vulnerabilities that sharp bettors have keyed in on, with the total dropping from 8.5 to 8 despite public money favoring the over.

Sharp Money Take

This total opened at 8.5 but has seen significant movement to 8 despite 62% of tickets on the over. Professional money is clearly targeting the under, especially with juice adjusting to -105. This is particularly noteworthy considering Comerica Park’s 1.039 run factor this season – a modest hitter’s park that doesn’t justify such strong under movement without sharp influence.

The Astros are also a perfect fade candidate today after their 12-0 blowout loss yesterday. Public perception expects an offensive bounce-back, but historically teams getting shut out by 10+ runs have gone under in the next game at a 58.3% rate since 2023.

Key Matchup Analysis

Spencer Arrighetti brings a troubling 6.38 ERA into this matchup, but his road numbers are even more concerning – 8.71 ERA with a 1.83 WHIP in away games. The rookie has struggled with command, walking 11 batters in just 18.1 innings while allowing a .279 batting average against.

However, Detroit’s Jack Flaherty has his own issues, posting a 6.14 ERA in his last five starts while allowing five home runs during that span. The former Cardinal has been inconsistent all season with a 4.76 ERA and opponents slugging .418 against him.

The Astros bullpen is severely compromised after closer Josh Hader went on the IL with a shoulder injury. Houston was forced to use Chas McCormick as a position player pitching yesterday, and their primary setup men (Bryan Abreu and Bryan King) have each pitched in three of the last five games.

Detroit’s relief corps has been their strength all season, with deadline acquisition Kyle Finnegan yet to allow a run in 7.2 innings since joining the Tigers. Their bullpen has posted a 2.46 ERA over the past seven days.

Situational Factors

Houston’s offense is reeling after being shut out twice in their last seven games. They’re also dealing with multiple injuries, including Yordan Alvarez’s extended absence (though he’s expected to begin a rehab assignment tomorrow). Jesus Sanchez is in an 0-for-21 slump, further weakening an already compromised lineup.

The Tigers have won 5 of their last 6 games, but their offense has been inconsistent, scoring 3 or fewer runs in four of their last seven contests. They’re coming off a disappointing 8-1 loss to Minnesota where they managed just three hits against Thomas Hatch.

Weather conditions at Comerica Park forecast mild temperatures around 72° with light 5-7 mph winds blowing from left to right field, which shouldn’t significantly impact the game.

Umpire Chris Conroy is behind the plate tonight with a career under percentage of 52.4% in 185 games – a slight lean toward lower-scoring affairs.

Statistical Edges

Houston’s road offense has been anemic lately, averaging just 3.6 runs over their last 10 away games. They’re also hitting a paltry .221 against right-handed pitching in August.

Detroit’s offensive production at home has been feast or famine, with a 45.8% under rate at Comerica Park this season. The Tigers are also scoring just 3.8 runs per game in August.

The Astros were recently without their starting shortstop Jeremy Peña due to illness, and starter Cristian Javier left yesterday’s game after just three innings with similar symptoms, suggesting potential team-wide health concerns.

The under is 8-4-1 in Tigers’ last 13 games against teams with winning records and 9-3 in their last 12 Monday games.

Astros vs. Tigers Best Bets for Aug 18th

Despite Arrighetti’s struggles and Flaherty’s inconsistency, I’m taking Under 8 runs (-105) as my primary play today. This recommendation is based on Houston’s compromised offense, Detroit’s inconsistent scoring, and the significant sharp money movement on the under despite public perception.

Arrighetti’s road splits are concerning, but his 8.71 ERA is due for regression, and Comerica Park provides a more forgiving environment than most venues. The Astros’ offense being shutout twice in their last seven games suggests deeper problems than just running into good pitching.

I also like Flaherty Over 5.5 Strikeouts (-115) as a secondary play. The Astros have struck out 26 times in their last three games, and Flaherty has recorded 6+ strikeouts in seven of his last ten starts despite his overall inconsistency.

The under is the stronger play here, and I’d recommend it with confidence at 8 or higher. Don’t be surprised to see both starters struggle early but for the scoring to stall in the middle innings, ultimately producing a 4-3 or 5-2 type of final score.

Free Pick: Take the Under 8 -105
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