The Arizona Diamondbacks (54-61) and Colorado Rockies (30-84) will face off in the MLB tonight. First pitch from Chase Field in Phoenix is scheduled for 9:40 p.m. ET. The game will broadcast live on ARID.
Arizona is a -250 favorite to win outright on the moneyline, while Colorado is +200 to pull off the upset. The over/under is set at 9 total runs.
Continue below for my Rockies vs Diamondbacks predictions and MLB picks for Friday, August 8, as well as probable pitchers, betting trends, injury reports and more.
Our Rockies vs Diamondbacks Prediction
- Rockies vs Diamondbacks pick: Over 9
Our Rockies vs Diamondbacks best bet is on the over, with the best line currently available at Fanatics. But as always, make sure to find the best odds by checking our live MLB odds page.
Rockies vs Diamondbacks Odds
| Rockies Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
+1.5 -102 | 9 -110o / -110u | +200 |
| Diamondbacks Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
-1.5 -118 | 9 -110o / -110u | -250 |
Rockies vs Diamondbacks Projected Starting Pitchers
| LHP Austin Gomber (COL) | Stat | RHP Zac Gallen (ARI) |
|---|---|---|
| 0-5 | W-L | 8-12 |
| 0.0 | fWAR (FanGraphs) | 0.4 |
| 6.18/5.21 | ERA / xERA | 5.48/4.91 |
| 5.67/5.46 | FIP / xFIP | 4.64/4.04 |
| 1.60 | WHIP | 1.36 |
| 8.0% | K-BB% | 13.4% |
| 33.3% | GB% | 42.2% |
| 88 | Stuff+ | 91 |
| 98 | Location+ | 104 |
Rockies vs Diamondbacks Preview, Picks
This is a classic late-season spot to target the over, especially at hitter-friendly Chase Field.
Colorado enters the series fresh off a brutal stretch in Toronto, where it allowed 45 runs across three games. Arizona, meanwhile, just dropped back-to-back games to the Padres, giving up 13 total runs in the process.
Austin Gomber (6.53 ERA in 15 career appearances vs. Arizona) gets the ball for Colorado, while Zac Gallen (3.53 ERA, 115 strikeouts in 17 starts vs. Colorado) counters for the Diamondbacks.
This game also fits a profitable late-season betting system outlined by Evan Abrams. In August through October, when totals close at 10.5 or lower in hitter-friendly environments like Arizona, Colorado and Washington, overs have shown long-term value.
Dry desert heat and expanded rosters lead to increased volatility in bullpens — a factor often overlooked by markets and bettors focused on playoff pressure or player fatigue.
With both teams trending toward high-scoring affairs and the environment setting up for late-season offense, there’s value in betting over 9 in Game 1.
Pick: Over 9
Rockies vs Diamondbacks Betting Trends
