Antonio Senzatela allowed three hits in seven strong innings and the Colorado Rockies kept pace in their playoff push with a 5-1 victory over the Arizona Diamondbacks on Saturday night.

The Rockies entered the game 1 1/2 games behind the first-place Los Angeles Dodgers in the NL West with the Dodgers playing later against San Diego. Colorado remained 1 1/2 games behind St. Louis for the second NL wild card spot.

Arizona, meanwhile, has lost 11 out of 14 and is on the brink of mathematical elimination from playoff contention with a week to go.

Colorado Rockies' Charlie Blackmon is hit with the pitch by thrown by Arizona Diamondbacks' Patrick Corbin in the third inning during a baseball game, Saturday, Sept. 22, 2018, in Phoenix. (AP PhotoRick Scuteri)

Colorado Rockies' Charlie Blackmon is hit with the pitch by thrown by Arizona Diamondbacks' Patrick Corbin in the third inning during a baseball game, Saturday, Sept. 22, 2018, in Phoenix. (AP PhotoRick Scuteri)

Chris Iannetta drove in two with a bases-loaded single in Colorado's four-run third inning against Patrick Corbin (11-7). Iannetta got a third RBI when Brad Boxberger walked him with the bases loaded in the ninth.

Senzatela (6-6) retired the first 14 batters before A.J. Pollock hit a 1-1 pitch just over the left field wall, Pollock's 19th homer of the season, with two outs in the fifth.

The only other batters to reach base against the Colorado right-hander were Alex Avila, whose leadoff single in the sixth was erased by a double play, and Eduardo Escobar, who singled to lead off the seventh.

Colorado Rockies' Nolan Arenado (28) celebrates with David Dahl after scoring on a Chris Iannetta two-run single in the third inning during a baseball game against the Arizona Diamondbacks, Saturday, Sept. 22, 2018, in Phoenix. (AP PhotoRick Scuteri)

Colorado Rockies' Nolan Arenado (28) celebrates with David Dahl after scoring on a Chris Iannetta two-run single in the third inning during a baseball game against the Arizona Diamondbacks, Saturday, Sept. 22, 2018, in Phoenix. (AP PhotoRick Scuteri)

Senzatela, who has won his last two outings after going 0-3 in his previous four, threw just 75 pitches, allowing a run and striking out four with no walks.

A hit batter and two walks by Corbin loaded the bases for Colorado with two outs in the third. Iannetta lashed a two-run single, David Dahl followed with an RBI single down the right-field line, Garrett Hampson drove in another with a single to center and the Rockies led 4-0.

In his shortest outing of the season, Corbin went three innings, allowing four runs and five hits with four walks, a hit batter and five strikeouts.

Colorado Rockies' Chris Iannetta hits a two-run single in the third inning during a baseball game against the Arizona Diamondbacks, Saturday, Sept. 22, 2018, in Phoenix. (AP PhotoRick Scuteri)

Colorado Rockies' Chris Iannetta hits a two-run single in the third inning during a baseball game against the Arizona Diamondbacks, Saturday, Sept. 22, 2018, in Phoenix. (AP PhotoRick Scuteri)

Colorado's Charlie Blackmon singled twice to extend his hitting streak to 14 games, tying a career high.

TRAINERS ROOM

Rockies: Manager Bud Black said SS Trevor Story "had a good day in the batting cage" and that "We're real close to turning him loose." Story injured his elbow throwing the baseball Monday night against the Dodgers in Los Angeles and has not played since. It was initially thought to be a more severe injury but an MRI showed no structural damage.

Arizona Diamondbacks pitcher Patrick Corbin throws in the first inning during a baseball game against the Colorado Rockies, Saturday, Sept. 22, 2018, in Phoenix. (AP PhotoRick Scuteri)

Arizona Diamondbacks pitcher Patrick Corbin throws in the first inning during a baseball game against the Colorado Rockies, Saturday, Sept. 22, 2018, in Phoenix. (AP PhotoRick Scuteri)

UP NEXT

Colorado sends LHP Kyle Freeland (15-7, 2.95 ERA) to the mound and Arizona counters with RHP Zack Godley (14-10, 4.79) Sunday in the final meeting of the teams this season.

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