Colorado Rockies vs Arizona Diamondbacks Picks and Prediction, Saturday, May 23, 2026

By: Mike Fink Published 05/23/2026, 04:05 AM ET
Colorado Rockies vs Arizona Diamondbacks prediction
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The Colorado Rockies face the Arizona Diamondbacks with both teams looking to improve in the National League West Division. The Rockies are 19-32 and have the worst record in the division while the Diamondbacks are 26-23 and in third place in the division. Who will win this game? Check out our Rockies vs Diamondbacks prediction! Be ready for all the MLB action with our free MLB picks.

Rockies hope Lorenzen and lineup improve

The Rockies are having a rough season, and their pitching is one of the reasons why. Michael Lorenzen will start the upcoming game, and he looks to improve on what’s been an awful season as he’s allowed 44 runs in 48 innings pitched.

Lorenzen has struggled but the lineup has let the Rockies down, scoring only 4.20 runs per game. Mickey Moniak has 12 home runs and 91 total bases while Troy Johnston has 66 total bases but the rest of the lineup has struggled. Only five active batters have an OPS+ over 100, and opponents can eliminate the hapless lineup as a result.

Arizona hopes lineup carries them

The Diamondbacks are having a rocky season and hope to go on a heater to make up ground in the standings. Zac Gallen will start the upcoming game, and he looks to improve on a rough season as he’s allowed 30 runs in 49 innings pitched.

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Gallen has struggled but the lineup has stepped up, scoring 4.60 runs per game. Corbin Carroll has seven home runs and 89 total bases while Ildemaro Vargas has seven home runs and 88 total bases but the rest of the lineup has stepped up as well. Nolan Arenado has seven home runs and 72 total bases while Gabriel Moreno and Geraldo Perdomo have added 91 total bases to round out the lineup.

Rockies vs Diamondbacks Pick

Money Line Pick For Rockies vs Diamondbacks

  • Diamondbacks (-110) (4 units)

The Diamondbacks have played well lately, and I see them taking over this game from the first inning. The Diamondbacks should plate baserunners at will against Michael Lorenzen, who has allowed 44 runs in 48 innings pitched, with Corbin Carroll, Nolan Arenado, and the rest of the batting order making contact and putting together strong plate appearances. The Diamondbacks should limit the Rockies lineup, which averages only 4.20 runs per game, with Zac Gallen tossing multiple scoreless innings to hand the ball over to the bullpen with the lead. The Diamondbacks should win the game with a strong performance at home.

Take the Diamondbacks money line as home Favorites.

Over/Under Pick For Rockies vs Diamondbacks

  • Over 8.5 (5 units)

The Diamondbacks have a great lineup, and I see this game being a high-scoring one from the first pitch. The Rockies should constantly plate baserunners against Zac Gallen, who has allowed 30 runs in 49 innings pitched, with Mickey Moniak, Troy Johnston, and the rest of the batting order making contact and putting together strong plate appearances. The Diamondbacks, who average 4.60 runs per game, should run up the score with Corbin Carroll, Nolan Arenado, Gabriel Moreno, and the rest of the batting order swinging for the fences and crushing pitches to plate baserunners at will. The Over should cover in a high-scoring game with both lineups stepping up.

Take the Over on 8.5 runs

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