Rockies vs Diamondbacks Prediction 6/21/25 MLB Picks Today

The Arizona Diamondbacks and the Colorado Rockies meet Sunday in MLB action from Truist Park. We will look at this from a betting perspective and determine the best bets for this game. Here’s an Rockies vs Diamondbacks Prediction.

Starting Pitching Matchup

The Arizona Diamondbacks will send out Merrill Kelly for the start here and Kelly is 6-3 with a 3.41 ERA and 86 strikeouts this season. In his last 5 starts against the Rockies, Kelly is 4-0 with a 1.38 ERA and 40 strikeouts. Carson Palmquist will get the nod for the Rockies in this one and is 0-4 with a 7.76 ERA and 18 strikeouts this season. This will be Palmquist’s second career start against Arizona.

Arizona Diamondbacks Recap

The Arizona Diamondbacks will be out to build on their 14-8 win to start the series, improving to 38-37 on the year as a result. After this series, the Diamondbacks will head on the road for a series against the Chicago White Sox.

Diamondbacks Win Back-To-Back Games & 7 Of Their Last 10

Corbin Carroll has 73 hits with 20 home runs, 44 RBIs, 9 triples and 13 doubles while Josh Naylor has 85 hits with 17 doubles, 9 home runs and 49 RBIs as well this season. Eugenio Suarez has also added 24 home runs and 65 RBIs while Geraldo Perdomo has 49 RBIs. Naylor has also chipped in 10 stolen bases as well up to this point in the year while Carroll has the unfortunate distinction of leading the Diamondbacks with 80 strikeouts so far this season. Carroll also has 10 stolen bases and Perdomo has a team-high 11 stolen bases as well this season.

Why the Arizona Diamondbacks will win

• The Rockies have lost each of their last 10 night games against National League opponents that held a winning record.
• The Diamondbacks have won each of their last five night games following a win.
• The road team has covered the run line in each of the Rockies’ last six games.
• The Rockies have failed to cover the run line in eight of their last nine home games against National League opponents after playing the previous day.

Arizona Diamondbacks Player Prop Facts

• Eugenio Suarez has hit at least one home run in five of the Diamondbacks’ last six games against NL opponents.
• Merrill Kelly has recorded a win in four of his last five appearances against the Rockies.
• Lourdes Gurriel Jr. has recorded an RBI in six of the Diamondbacks’ last seven night games.
• Merrill Kelly has recorded six or more strikeouts in each of his last eight appearances.
• Corbin Carroll has scored at least one run in eight of his last nine appearances with the Diamondbacks as road favorites against NL West opponents.
• Pavin Smith has recorded at least one Double in three of his last four appearances against the Rockies.
• Gabriel Moreno has recorded at least one hit in each of his last 11 appearances in night games against teams that held a losing record.
• Eugenio Suarez ranks 4th in the league in Home Runs (24) this season.

Colorado Rockies Recap

The Colorado Rockies come into this game looking to bounce back from their series-opening loss, sitting at 17-59 on the year as a result. After this series, the Rockies will welcome the Los Angeles Dodgers to town for a series.

Rockies Lose Back-To-Back Games

Hunter Goodman leads the Rockies with 79 hits including 17 doubles, 3 triples, 14 home runs and 48 RBIs while Michael Toglia has 42 hits with 9 doubles, 9 home runs and 26 RBIs but also has 87 strikeouts. Kyle Farmer has 14 doubles while Jordan Beck has 9 home runs, 24 RBIs, 4 triples and 8 stolen bases. Brenton Doyle has 49 hits with 10 doubles, 5 home runs, 25 RBIs and 7 stolen bases. Mickey Moniak has 45 hits with 5 doubles, 5 triples and 10 home runs with 24 RBIs. Ryan McMahon’s also chipped in 58 hits with 12 doubles, 12 home runs and 25 RBIs.

Why the Colorado Rockies will win

• • The Diamondbacks have lost four of their last five games as road favorites.
  • The Rockies have won six of their last eight games as home underdogs against the Diamondbacks following a home loss.
  • The Diamondbacks have failed to cover the run line each of their last eight Saturday games against teams that held a losing record.
  • The Rockies have covered the run line in four of their last five games against NL West opponents that held a winning record.

Colorado Rockies Player Prop Facts

• Brenton Doyle has scored at least one run in each of the Rockies’ last five home games against NL West opponents.
• Ryan McMahon has recorded at least one hit in each of the Rockies’ last eight night games against opponents that held a winning record.
• German Marquez has recorded at least one RBI in each of his last four appearances against NL opponents that held a winning record.
• Ezequiel Tovar has hit a home run in three of his last five appearances with the Rockies as underdogs against the Diamondbacks.
• German Marquez has recorded a Double in three of his last four home appearances against NL West opponents that held a winning record.

Total Runs Facts

• • Each of the Diamondbacks’ last six games have gone OVER the total runs line.
  • Each of the Rockies’ last four home games after playing the previous day have gone OVER the total runs line.

Rockies vs Diamondbacks Prediction

I’m on Arizona here. I think Colorado’s best chance at a win in this series came with Zac Gallen starting for Arizona on Friday. The Rockies looked good early on before the bullpen stumbled as usual, and I think the Rockies are in trouble here. Merrill Kelly is a pitcher with plenty of Coors Field experience, and solid experience at that, and I just don’t see the Rockies being able to break through here. Give me Arizona.