Diamondbacks vs Rockies Prediction, Odds, Moneyline, Spread & Over/Under for Aug. 8

Odds updated as of 7:14 a.m.

MLB action on Friday includes the Arizona Diamondbacks facing the Colorado Rockies.

Here's everything you need to know before checking out today's MLB odds and spreads on FanDuel Sportsbook.

Diamondbacks vs Rockies Game Info

• Arizona Diamondbacks (54-61) vs. Colorado Rockies (30-84)
• Date: Friday, August 8, 2025
• Time: 9:40 p.m. ET
• Venue: Chase Field -- Phoenix, Arizona
• Coverage: ARID and COLR

Diamondbacks vs Rockies Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: ARI: (-240) | COL: (+198)
• Spread: ARI: -1.5 (-122) | COL: +1.5 (+102)
• Total: 9 -- Over: (-108) | Under: (-112)

Diamondbacks vs Rockies Probable Starting Pitchers

Probable Pitchers: Zac Gallen (Diamondbacks) - 8-12, 5.48 ERA vs Austin Gomber (Rockies) - 0-5, 6.18 ERA

This contest's pitching matchup is set, as the Diamondbacks will send Zac Gallen (8-12) to the mound, while Austin Gomber (0-5) will answer the bell for the Rockies. Gallen and his team have a record of 9-14-0 against the spread when he starts. When Gallen starts a game and his team is the favorite on the moneyline, they have a record of 5-8. The Rockies have a 2-7-0 ATS record in Gomber's nine starts that had a set spread. The Rockies have a 2-7 record in Gomber's nine starts this season when they were the moneyline underdog.

Diamondbacks vs Rockies Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Diamondbacks win (68.5%)

Diamondbacks vs Rockies Moneyline

• Looking at the moneyline for Rockies-Diamondbacks, Colorado is the underdog at +198, and Arizona is -240 playing at home.

Diamondbacks vs Rockies Spread

• The Rockies are +1.5 on the run line against the Diamondbacks. The Rockies are +102 to cover, and the Diamondbacks are -122.

Diamondbacks vs Rockies Over/Under

• The over/under for Diamondbacks-Rockies on Aug. 8 is 9. The over is -108, and the under is -112.

Bet on Arizona Diamondbacks vs. Colorado Rockies on FanDuel today!

Diamondbacks vs Rockies Betting Trends

• The Diamondbacks have been chosen as favorites in 66 games this year and have walked away with the win 33 times (50%) in those games.
• This year Arizona has won two of four games when listed as at least -240 on the moneyline.
• The Diamondbacks and their opponents have hit the over in 55 of their 111 games with a total set by oddsmakers this season.
• The Diamondbacks have posted a record of 51-60-0 against the spread this season.
• The Rockies are 27-80 in games they were the underdog on the moneyline (winning 25.2% of those games).
• Colorado is 8-41 (winning just 16.3% of its games) when it has played as a moneyline underdog of +198 or longer.
• The Rockies have played in 111 games with a set over/under, and have combined with their opponents to go over the total 48 times (48-59-4).
• The Rockies have a 44-67-0 record against the spread this season (covering only 39.6% of the time).

Diamondbacks Player Leaders

• Geraldo Perdomo has an OPS of .802, fueled by an OBP of .378 and a team-best slugging percentage of .424 this season. He has a .278 batting average.
• Among all qualified hitters, he ranks 35th in batting average, his on-base percentage ranks 13th, and he is 83rd in slugging.
• Perdomo hopes to build on a four-game hitting streak in this matchup. During his last five outings he is hitting .333 with two doubles and five walks.
• Corbin Carroll leads Arizona in total hits (97) this season while batting .247 with 57 extra-base hits. He's slugging .546 with an on-base percentage of .323.
• Among all qualifying hitters, he is 107th in batting average, 90th in on-base percentage and eighth in slugging percentage.
• Ketel Marte has 87 hits this season and a team-best OBP of .387.
• Lourdes Gurriel Jr. has been key for Arizona with 102 hits, an OBP of .293 plus a slugging percentage of .408.

Rockies Player Leaders

• Hunter Goodman has a team-best slugging percentage (.531) while leading the Rockies in hits (106). He's batting .281 and with an on-base percentage of .328.
• Including all the qualifying players in the majors, his batting average places him 27th, his on-base percentage ranks 74th, and he is 11th in slugging.
• Goodman brings a four-game hitting streak into this game. In his last five games he is hitting .316 with three home runs, three walks and five RBIs.
• Jordan Beck leads his team with a .343 on-base percentage. He has a batting average of .279 while slugging .469.
• Including all qualified hitters, his batting average places him 31st, his on-base percentage ranks 53rd, and he is 41st in slugging.
• Mickey Moniak is hitting .267 with 13 doubles, six triples, 17 home runs and 18 walks.
• Tyler Freeman is hitting .302 with 17 doubles, a triple, a home run and 25 walks.

Diamondbacks vs Rockies Head to Head

• 6/22/2025: 4-2 COL (Favorite: Diamondbacks, Spread: -1.5, Total: 12, Favorite Moneyline: -176, Underdog Moneyline: +148)
• 6/21/2025: 5-3 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 12.5, Favorite Moneyline: -200, Underdog Moneyline: +168)
• 6/20/2025: 14-8 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 11.5, Favorite Moneyline: -164, Underdog Moneyline: +138)
• 5/18/2025: 1-0 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 9, Favorite Moneyline: -300, Underdog Moneyline: +245)
• 5/17/2025: 14-12 COL (Favorite: Diamondbacks, Spread: -1.5, Total: 9.5, Favorite Moneyline: -375, Underdog Moneyline: +300)
• 5/16/2025: 8-0 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 9, Favorite Moneyline: -390, Underdog Moneyline: +310)
• 9/18/2024: 9-4 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 10.5, Favorite Moneyline: -164, Underdog Moneyline: +138)
• 9/17/2024: 8-2 COL (Favorite: Diamondbacks, Spread: -1.5, Total: 11, Favorite Moneyline: -136, Underdog Moneyline: +116)
• 9/16/2024: 3-2 COL (Favorite: Diamondbacks, Spread: -1.5, Total: 11, Favorite Moneyline: -174, Underdog Moneyline: +146)
• 8/14/2024: 11-4 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 9, Favorite Moneyline: -210, Underdog Moneyline: +176)

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