Invisible Insider
July 17, 2025
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Astros at Mariners MLB Betting Preview

Game Time: 7/18, 10:10 PM

1. Brief Intro

The Houston Astros take on the Seattle Mariners in a late-night showdown at T-Mobile Park. Both teams are looking to gain ground in the competitive AL West, with Houston's Colton Gordon facing off against Seattle's Bryan Woo. Betting odds for this game have not been released, adding intrigue to an already compelling matchup.

2. Pitcher Breakdown

Pitching Matchup: Colton Gordon vs Bryan Woo
Colton Gordon (HOU):

Four-Seam Fastball (39% usage, 91.3 mph), Sweeper (31% usage, 80.4 mph), Sinker (12% usage, 91.6 mph), Curveball (12% usage, 76.0 mph), Changeup (6% usage, 84.4 mph). Gordon relies on a diverse pitch mix that includes breaking balls and average velocity fastballs. The Mariners lineup averages .266 this season with a projected xBA of .243 against Gordon's arsenal.

Bryan Woo (SEA):

Four-Seam Fastball (45% usage, 95.6 mph), Sinker (25% usage, 95.2 mph), Slider (12% usage, 88.3 mph), Changeup (9% usage, 89.7 mph), Sweeper (9% usage, 84.4 mph). Woo brings a power approach with high-velocity fastballs. The Astros lineup averages .258 this season with a projected xBA of .254 against Woo's arsenal.

3. Lineup Advantage vs Arsenal

Lineup Matchups & Batting Edges
For Away Team vs Home Pitcher:

The Astros lineup averages .258 this season but projects to .254 against Woo's arsenal. Cam Smith sees the biggest decrease, with a season BA of .323 dropping to an xBA of .264 (-59 points), while Cooper Hummel sees a notable increase from .180 to .254 (+74 points).

For Home Team vs Away Pitcher:

The Mariners lineup averages .266 this season but projects to .243 against Gordon's arsenal. Dominic Canzone is the most stable, with only a minor drop from .319 to .309 (-10 points), while Cal Raleigh's season average of .259 falls to .213 (-46 points) against Gordon's offerings.

4. Lineup Strikeout Trends vs Arsenal

Strikeout Risks & Rewards

The Astros' projected K-rate is 22.3% vs. Woo — up 2.0% from their 20.2% season average. The Mariners' projected K-rate is 22.2% vs. Gordon — up 2.4% from their 19.8% season average. Both teams show slight increases, suggesting moderate strikeout potential for both pitchers.

5. Umpire Influence

Behind the Plate: TBA

Umpire assignment has not been announced, which makes prop volatility a concern.

6. Betting Interpretation / Final Lean

Final Lean & Betting Takeaway

STEP-BY-STEP BETTING ANALYSIS:

STEP 1: Check ALL individual batters for prop opportunities
Despite some notable xBA shifts in individual players, no batter meets the criteria of xBA > 0.300 with a boost of more than 20 points. Therefore, no significant batter props can be recommended.

STEP 2: Check team strikeout rates for pitcher props
Neither team achieves the threshold of K% > 25% with an increase of > 4%, suggesting no strong lean on strikeout props for either pitcher.

STEP 3: Report findings
No significant statistical edges meet our betting threshold in this matchup. With the lack of a clear betting angle, it may be wise to await further betting lines or umpire announcements for more clarity.

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