Invisible Insider
July 11, 2025
Game Preview
Mariners at Tigers MLB Betting Preview

Game Time: 7/11, 07:10 PM

1. Brief Intro

The Seattle Mariners head to Detroit to face the Tigers in an intriguing matchup. With the Tigers positioned as a -225 favorite and the Mariners as a +182 underdog, the betting public seems to heavily favor Detroit, with 82% of the money backing the Tigers. This game offers a promising pitching duel and potentially undervalued betting angles.

2. Pitcher Breakdown

Pitching Matchup: Luis Castillo vs. Tarik Skubal
Luis Castillo (SEA):

The arsenal of Luis Castillo is composed of a Four-Seam Fastball (46% usage, 95.2 mph), Slider (21% usage, 84.6 mph), Sinker (21% usage, 95.1 mph), and Changeup (12% usage, 87.5 mph). Castillo’s mix of velocity and movement positions him as a power pitcher with a diverse pitch mix. However, the Tigers lineup, which averages .258 this season, projects a slightly higher .276 xBA against Castillo's offerings, indicating a potential challenge for the Mariners' ace.

Tarik Skubal (DET):

Tarik Skubal's repertoire includes a Changeup (32% usage, 88.3 mph), Four-Seam Fastball (27% usage, 97.6 mph), Sinker (26% usage, 97.3 mph), Slider (13% usage, 89.6 mph), and a Curveball (2% usage, 81.1 mph). His ability to mix pitches with both speed and movement makes him a formidable opponent. The Mariners lineup, with a .245 season average, projects a marginally improved .250 xBA against Skubal’s varied arsenal.

3. Lineup Advantage vs. Arsenal

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

The Mariners lineup, with a season average of .245, projects to slightly improve to .250 against Skubal's pitching. Jorge Polanco stands out with a significant increase, moving from a season BA of .252 to a projected xBA of .314 (+62 points) against Skubal's arsenal, along with a decrease in strikeout rate from 14.1% to 9.6% (-4.5%). Conversely, Julio Rodríguez faces a decrease, with his season BA of .250 dropping to a .205 xBA (-45 points) and an increased K% from 22.5% to 28.4% (+5.9%).

For Home Team vs. Away Pitcher:

The Tigers lineup, averaging .258 this season, projects to improve to .277 against Castillo. Dillon Dingler shows a notable increase from a .263 season BA to a .309 xBA (+46 points), making him a key performer against Castillo. Riley Greene, however, experiences a drop from .279 to a .233 xBA (-46 points), although his strikeout rate slightly decreases from 31.9% to 31.0% (-0.9%).

4. Lineup Strikeout Trends vs. Arsenal

Strikeout Risks & Rewards

The Mariners' projected K-rate drops to 22.2% against Skubal, down 1.5% from their 23.7% season average, suggesting a potential for increased contact. Meanwhile, the Tigers see a decrease in strikeouts to 21.3% against Castillo, down 1.8% from their 23.1% season average, indicating similar contact potential.

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
Jorge Polanco (.252 → .314, +62 points) meets the criteria with an xBA greater than .300 and a boost above +20 points, making him a potential lean for a batting prop.

STEP 2: Check team strikeout rates for pitcher props
No significant increase in projected K-rates for either team against their respective pitchers, as neither meets the over 25% and increase greater than 4% criteria.

STEP 3: Report findings
Our final lean would be on Jorge Polanco—his .314 xBA against Skubal's arsenal is well above our .300 threshold with a significant +62 point boost. No significant strikeout prop edge is evident based on the current data.

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