Diamondbacks vs Rockies Prediction 5/18/25 MLB Picks Today

In this article, we will formulate a Diamondbacks vs Rockies prediction for this MLB game on Sunday, May 18, at Chase Field in Phoenix, Arizona. Let’s take a look at the prediction for this MLB matchup.

Colorado Rockies Betting Preview

The Colorado Rockies (8-37, 3-21 Away) snapped a four-game losing skid with a 14-12 victory in Game 2 of the series against the Diamondbacks. Prior to this series, the Rox lost to the Giants, Tigers, Padres, and Rangers. They failed to score in an 8-0 defeat in Game 1 in Phoenix, but responded magnificently with a season-high 14 runs. Hunter Goodman and Kyle Farmer led the offense with four RBI apiece, while German Marquez pitched for 3.0 innings in a no-decision, allowing seven runs (five earned) on seven hits with one strikeout and three walks. Jake Bird was credited with the win.


This season, the Rockies average 3.14 runs per game (29th in the MLB) on a .213/.281/.347 triple-slash. When it comes to pitching, the Rockies’ staff has a 5.80 ERA (30th) and 1.60 WHIP (30th). Hunter Goodman leads the Rockies with a .300 batting average, seven home runs, and 29 RBI this season.

Chase Dollander will take the mound for the Rockies on Sunday. The 23-year-old right-hander has a 2-4 record in seven starts this year with a 6.88 ERA and 1.47 WHIP in 34.0 innings.

Arizona Diamondbacks Betting Preview

The Arizona Diamondbacks (24-22, 12-13 Home) lost the series to the Phillies and Mets, split with the Dodgers, and then beat the San Francisco Giants. After a convincing 8-0 win over the Rockies in Game 1 of this series, the D-backs allowed a season-high 14 runs in last night’s 14-12 defeat. Eugenio Suarez led the team with three RBI, while Zac Gallen pitched for 5.0 innings in a no-decision, allowing six runs on eight hits with five strikeouts and two walks. Ryan Thompson took the loss.

This year, the Diamondbacks average 5.11 runs per game (5th in the MLB) on a .255/.336/.446 triple-slash. When it comes to pitching, the Diamondbacks’ staff has a 4.60 ERA (24th) and 1.33 WHIP (22nd). Eugenio Suarez leads the Diamondbacks with a .220 batting average, 14 home runs, and 37 RBI this season.

The projected starting pitcher for the Diamondbacks is Merrill Kelly, who is 4-2 in nine starts this season, with a 3.71 ERA and 1.06 WHIP in 51.0 innings.

Why the Diamondbacks will cover

Total Runs Facts

Matchup/League Facts

Diamondbacks vs Rockies Prediction

The Diamondbacks won seven of the previous ten H2H encounters, but the Rockies were better in three of the last five. I am having my doubts about Chase Dollander, who is a talented young pitcher but rather inconsistent in his first season in the majors. I am going with the D-backs and Merrill Kelly, who has excellent numbers against the Rockies in his career. Kelly allowed a .192 BA in 99 at-bats against Colorado, and he surrendered more than two runs only once in his last seven starts. Back the diamondbacks to win and cover the run line.

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