Written by: Ryan Chen
Ryan combines advanced statistics with traditional scouting to identify profitable betting opportunities.
Diamondbacks vs Rockies: Betting Preview & Props (Aug 15)
Last updated: August 15, 2025
Game Time: 8/15, 08:40PM
Game Preview
The Arizona Diamondbacks face off against the Colorado Rockies in a late-night battle at Coors Field. With the Diamondbacks as a −193 favorite, the betting markets are heavily favoring Arizona, as 91% of the public money backs them to clinch a victory. The Rockies, priced as +157 underdogs, will look to upset the odds with a strong home performance.
Pitching Preview
Pitching Matchup: Brandon Pfaadt (AZ) vs Tanner Gordon (COL)
Brandon Pfaadt (AZ)
- Pitch Arsenal: Four-Seam Fastball (26% usage, 93.6 mph), Sinker (23% usage, 93.1 mph), Sweeper (20% usage, 84.8 mph), Changeup (15% usage, 87.5 mph), Curveball (9% usage, 82.4 mph), Cutter (7% usage, 89.8 mph)
Brandon Pfaadt is a versatile pitcher with a diverse pitch mix, relying on his fastballs complemented by breaking pitches. The Rockies lineup hits an average of .261 this season, with a projected expected batting average (xBA) of .263 against Pfaadt's arsenal, indicating a slight edge for the home team hitters.
Tanner Gordon (COL)
- Pitch Arsenal: Four-Seam Fastball (41% usage, 91.3 mph), Sweeper (31% usage, 80.7 mph), Curveball (12% usage, 76.5 mph), Sinker (10% usage, 91.6 mph), Changeup (6% usage, 84.4 mph)
Tanner Gordon relies heavily on his fastball and sweeper combination. The Diamondbacks lineup averages .251 this season, projecting a similar xBA of .248 against Gordon's offerings, suggesting a modest challenge for Arizona's hitters.
Hitting Matchups
Lineup Matchups & Batting Edges
Diamondbacks vs Tanner Gordon:
The Diamondbacks project to slightly struggle against Gordon, with a team xBA of .248 compared to their season average of .251.
- Biggest Increase: Tyler Locklear: Season BA .184 → xBA vs arsenal .403 (+219 points), Season K% 34.5% → Arsenal K% 14.7% (−19.8%)
- Biggest Decrease: James McCann: Season BA .254 → xBA vs arsenal .226 (−28 points), Season K% 25.6% → Arsenal K% 36.8% (+11.2%)
Rockies vs Brandon Pfaadt:
The Rockies lineup shows a slight improvement with a projected xBA of .263 against Pfaadt's mix, up from their season average of .261.
- Biggest Increase: Brenton Doyle: Season BA .234 → xBA vs arsenal .299 (+65 points), Season K% 25.5% → Arsenal K% 19.9% (−5.6%)
- Biggest Decrease: Tyler Freeman: Season BA .300 → xBA vs arsenal .244 (−56 points), Season K% 22.4% → Arsenal K% 21.7% (−0.7%)
K-Risk Analysis
Strikeout Risks & Rewards
- Diamondbacks' projected K-rate: 25.2% vs Tanner Gordon — up 2.0% from their 23.2% season average.
- Rockies' projected K-rate: 21.2% vs Brandon Pfaadt — down 1.9% from their 23.1% season average.
Higher strikeout rates for the Diamondbacks suggest potential value on Gordon's strikeout props, while the Rockies' lower rate indicates a potential contact advantage against Pfaadt.
Umpire Influence
Behind the Plate: Umpire assignment has not been announced, which makes prop volatility a concern.
What to Bet On
📢 Prop Alert: Tyler Locklear (.184 → .403, +219 points) meets betting lean criteria!
🔑 Key Takeaways
- Tyler Locklear offers a strong batting prop opportunity with significant xBA improvement.
- No significant pitcher prop opportunities due to moderate strikeout rate adjustments.
- Umpire assignment is not available, adding uncertainty for prop bets.
- Lean towards batting props for Tyler Locklear given his favorable matchup.
🧠 FAQs
Q: Who is the best betting prop for the Diamondbacks vs Rockies game? A: Tyler Locklear stands out with a projected xBA of .403, significantly higher than his season average.
Q: Is the umpire a pitcher-friendly umpire? A: Umpire assignment is currently TBA, making it hard to assess tendencies.
Q: What time is the Diamondbacks vs Rockies game? A: The game is scheduled for 8/15 at 08:40PM.
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