Diamondbacks vs Rockies Prediction, Odds, Moneyline, Spread & Over/Under for June 21

Odds updated as of 8:12 a.m.

The Arizona Diamondbacks will take on the Colorado Rockies in MLB action on Saturday.

Before you do any MLB betting on this matchup at FanDuel Sportsbook, here's everything you need to know.

Diamondbacks vs Rockies Game Info

• Arizona Diamondbacks (38-37) vs. Colorado Rockies (17-59)
• Date: Saturday, June 21, 2025
• Time: 9:10 p.m. ET
• Venue: Coors Field -- Denver, Colorado
• Coverage: COLR and ARID

Diamondbacks vs Rockies Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: ARI: (-205) | COL: (+172)
• Spread: ARI: -1.5 (-142) | COL: +1.5 (+118)
• Total: 12.5 -- Over: (-104) | Under: (-118)

Diamondbacks vs Rockies Probable Starting Pitchers

Probable Pitchers: Merrill Kelly (Diamondbacks) - 6-3, 3.41 ERA vs Carson Palmquist (Rockies) - 0-4, 7.76 ERA

This contest's pitching matchup is set, as the Diamondbacks will send Merrill Kelly (6-3) to the mound, while Carson Palmquist (0-4) will get the nod for the Rockies. Kelly's team is 5-8-0 against the spread in his starts this season. Kelly's team has been victorious in 62.5% of the games he's started as the moneyline favorite with a record of 5-3. The Rockies have a 2-4-0 record against the spread in Palmquist's starts. The Rockies have a 1-5 record in Palmquist's six starts this season when they were the underdog on the moneyline.

Diamondbacks vs Rockies Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Diamondbacks win (68.3%)

Diamondbacks vs Rockies Moneyline

• The Diamondbacks vs Rockies moneyline has Arizona as a -205 favorite, while Colorado is a +172 underdog at home.

Diamondbacks vs Rockies Spread

• The Diamondbacks are at the Rockies and are favored by 1.5 runs on the spread. The Diamondbacks are -142 to cover the runline, with the Rockies being +118.

Diamondbacks vs Rockies Over/Under

• Diamondbacks versus Rockies on June 21 has an over/under of 12.5 runs, with the odds on the over -104 and the under set at -118.

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Diamondbacks vs Rockies Betting Trends

• The Diamondbacks have come away with 25 wins in the 47 contests they have been listed as the favorites in this season.
• Arizona has a record of 3-3 in contests when sportsbooks favor them by -205 or more on the moneyline.
• The Diamondbacks' games have gone over the total in 37 of their 72 opportunities.
• In 72 games with a line this season, the Diamondbacks have a mark of 34-38-0 against the spread.
• The Rockies have won 21.1% of the games this season they were the underdog on the moneyline (15-56).
• Colorado has a 6-34 record (winning only 15% of its games) when it has played as a moneyline underdog of +172 or longer.
• The Rockies have combined with opponents to go over the total 31 times this season for a 31-40-3 record against the over/under.
• The Rockies have a 29-45-0 record ATS this season.

Diamondbacks Player Leaders

• Corbin Carroll leads Arizona in total hits (73) this season while batting .255 with 42 extra-base hits. He has an on-base percentage of .341 and a slugging percentage of .573.
• Among all qualifying hitters in the majors, he ranks 80th in batting average, 61st in on-base percentage, and fourth in slugging.
• Carroll hopes to build on a two-game hitting streak in this matchup. In his last five games he is hitting .176 with a double, a triple, a home run, four walks and an RBI.
• Josh Naylor leads the Diamondbacks with an OPS of .822. He has a slash line of .302/.356/.466 this season.
• He ranks 14th in batting average, 40th in on-base percentage and 41st in slugging among qualified batters.
• Naylor has picked up a hit in 10 games in a row. In his last 10 outings he is hitting .415 with three doubles, two home runs, four walks and 10 RBIs.
• Geraldo Perdomo has collected 69 base hits, an OBP of .351 and a slugging percentage of .401 this season.
• Perdomo enters this game with two games in a row with at least one hit. In his last five games he is batting .091 with two walks.
• Eugenio Suarez is batting .246 with a .319 OBP and 65 RBI for Arizona this season.
• Suarez has hit safely in two games in a row. During his last five outings he is hitting .429 with a double, four home runs and 10 RBIs.

Rockies Player Leaders

• Hunter Goodman has racked up a slugging percentage of .516 and has 79 hits, both team-best numbers for the Rockies. He's batting .283 and with an on-base percentage of .326.
• Including all qualifying hitters, he is 33rd in batting average, while his on-base percentage ranks 84th and he is 16th in slugging.
• Goodman hopes to build on a four-game hitting streak in this matchup. During his last five outings he is batting .217 with a double, three home runs, a walk and eight RBIs.
• Jordan Beck is hitting .262 with 14 doubles, four triples, nine home runs and 18 walks. He's slugging .468 with an on-base percentage of .320.
• He is currently 68th in batting average, 97th in on-base percentage and 38th in slugging percentage among all qualifying hitters.
• Ryan McMahon a has .332 on-base percentage to lead the Rockies.
• Mickey Moniak is batting .245 with five doubles, five triples, 10 home runs and 13 walks.

Diamondbacks vs Rockies Head to Head

• 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)
• 8/13/2024: 4-3 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -200, Underdog Moneyline: +168)
• 8/12/2024: 5-4 ARI (Favorite: Diamondbacks, Spread: -1.5, Total: 8.5, Favorite Moneyline: -295, Underdog Moneyline: +240)

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