August 27, 2025

Game Preview

Written by: Jake Turner

Jake is a veteran sports analyst with over 10 years of MLB prop betting experience.

Rockies vs Astros: Betting Preview & Props (Aug 27)

Last updated: August 27, 2025

Game Time: 8/27, 08:10PM

Matchup Setup

The Colorado Rockies face off against the Houston Astros in a matchup heavily favored towards the Astros. DraftKings lists the Astros as a -340 favorite, with the Rockies as a +264 underdog, and 68% of the betting money supporting the Astros. This game showcases a contrast in pitching styles and lineup efficiencies, making it a captivating clash for bettors.

Pitcher Breakdown

Pitching Matchup: Chase Dollander vs Framber Valdez

Chase Dollander (COL):

Four-Seam Fastball (48% usage, 97.8 mph), Curveball (22% usage, 79.0 mph), Cutter (12% usage, 89.5 mph), Sinker (10% usage, 97.1 mph), Changeup (8% usage, 89.2 mph), Slider (0% usage, 86.9 mph)

Chase Dollander is a velocity-heavy pitcher with a primary reliance on his fastball, complemented by a sharp curveball. His varied arsenal will be tested against the Astros, a lineup averaging .253 with a projected xBA of .253 against his pitch mix.

Framber Valdez (HOU):

Sinker (45% usage, 94.3 mph), Curveball (32% usage, 79.5 mph), Changeup (18% usage, 90.0 mph), Slider (3% usage, 84.1 mph), Four-Seam (2% usage, 93.6 mph)

Framber Valdez's approach relies on inducing ground balls through a dominant sinker and a deceptive curveball. The Rockies lineup averages .266 this season but projects to hit .258 against Valdez's offerings.

Hitting Matchups

Lineup Matchups & Batting Edges

For Rockies vs Framber Valdez: The Rockies lineup averages .266 this season but projects to .258 vs Valdez's arsenal.

Biggest Increase: Brenton Doyle: Season BA .244 → xBA vs arsenal .301 (+57 points), Season K% 24.4% → Arsenal K% 14.4% (-10.0%)
Biggest Decrease: Warming Bernabel: Season BA .275 → xBA vs arsenal .197 (-78 points), Season K% 16.0% → Arsenal K% 18.8% (+2.8%)

For Astros vs Chase Dollander: The Astros lineup averages .250 this season and projects to .253 vs Dollander's pitches.

Biggest Increase: Jeremy Peña: Season BA .250 → xBA vs arsenal .286 (+36 points), Season K% 22.5% → Arsenal K% 15.2% (-7.3%)
Biggest Decrease: Yordan Alvarez: Season BA .265 → xBA vs arsenal .232 (-33 points), Season K% 25.8% → Arsenal K% 25.1% (-0.7%)

Whiff Outlook

Strikeout Risks & Rewards

The Rockies' projected K-rate is 20.1% vs Valdez — down 4.8% from their 24.9% season average.
The Astros' projected K-rate is 21.8% vs Dollander — down 1.2% from their 23.1% season average.

Behind the Plate

Behind the Plate: Umpire assignment has not been announced, which makes prop volatility a concern.

What to Bet On

📢 Prop Alert: Brenton Doyle (.244 → .301, +57 points) meets betting lean criteria!

No strikeout prop alerts as neither team's K-rate meets the threshold for an over bet.

🔑 Key Takeaways

Brenton Doyle shows a significant batting advantage against Valdez, making him a prop target.
No significant strikeout prop opportunities due to low projected K-rates.
Umpire assignment is unavailable, adding uncertainty to prop bets.
Overall, the Astros are strong favorites, but Rockies have individual batting edges.

🧠 FAQs

Q: Who is the best betting prop for the Rockies vs Astros game? A: Brenton Doyle stands out with a favorable matchup against Framber Valdez.

Q: Is the umpire a pitcher-friendly umpire? A: Umpire assignment is TBA, leaving tendencies unknown.

Q: What time is the Rockies vs Astros game? A: The game starts at 8/27, 08:10PM.

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