PHOENIX (Interstat) — Eduardo Rodriguez pitched seven dominant innings and the Arizona Diamondbacks matched their season high with nine runs while limiting the Pittsburgh Pirates to two hits Tuesday night in a 9-0 victory at Chase Field.

The left-hander struck out seven, walked none and scattered those two singles over seven scoreless frames to improve to 3-0. He retired 13 of the first 14 batters he faced and faced only one Pittsburgh runner in scoring position, an inning that ended when Oneil Cruz grounded out to second base in the fifth.

The Diamondbacks, who entered the game at 16-17, climbed back to .500 at 17-17 with the win. The Pirates fell to 19-17.

Arizona broke the game open with a five-run sixth inning that turned a 2-0 lead into a 7-0 cushion. The inning began quietly when Ildemaro Vargas grounded out to first base. Lourdes Gurriel Jr. then walked, and Nolan Arenado was hit by a pitch to put two on with one out. Gabriel Moreno doubled to right field, scoring Gurriel and sending Arenado to third. Alek Thomas was hit by a pitch to load the bases, and Geraldo Perdomo doubled down the right-field line, clearing the bases with two runs to make it 5-0. Ketel Marte then reached on a fielder’s choice that scored Thomas, and Corbin Carroll followed with a sacrifice fly to right that plated Perdomo for a 7-0 lead.

The burst came against Pirates starter Bubba Chandler, who had held Arizona to two runs through five innings. Chandler worked five innings, allowing two hits and four walks while striking out four. He suffered his fourth loss against one win.

Rodriguez’s outing was his second consecutive win. He last pitched April 29 at Milwaukee, where he allowed two runs on five hits over 4 2/3 innings in a 6-2 Diamondbacks victory.

The Diamondbacks struck first in the bottom of the first. After Geraldo Perdomo struck out to open the frame, Ketel Marte tripled to left field. Corbin Carroll walked, and Adrian Del Castillo hit a sacrifice fly to center that scored Marte. Ildemaro Vargas followed with a double to center that brought home Carroll for a 2-0 lead.

The Pirates mounted their best threat in the fourth inning. With one out, Bryan Reynolds walked and moved to second on a groundout by Ryan O’Hearn. Marcell Ozuna then flew out sharply to center, and Konnor Griffin struck out on a foul tip to end the inning.

Arizona added two more runs in the eighth. Alek Thomas led off with a double to center. After Perdomo lined out, Marte singled to right to score Thomas and advance to second. Carroll flied out, and Del Castillo singled to right to drive in Marte for the final 9-0 margin.

For Arizona, Marte went 2-for-5 with two RBIs. Moreno finished 2-for-4 with an RBI and a run scored. Perdomo had a double and two RBIs. Del Castillo drove in two runs, and Vargas had an RBI single.

Brandyn Garcia pitched a scoreless eighth inning with two strikeouts. Jonathan Loáisiga worked a perfect ninth.

For Pittsburgh, Jared Triolo doubled in the fifth for one of the team’s two hits. Konnor Griffin doubled in the seventh for the other. The Pirates managed only three walks and struck out 10 times.

Evan Sisk pitched 1 2/3 scoreless innings of relief for Pittsburgh, allowing two hits.

The attendance was 22,410, and the game lasted 2 hours, 33 minutes.

The Pirates had entered the game having won four of their previous five, including a 1-0 shutout of Cincinnati on Sunday. The Diamondbacks had lost four straight before Tuesday, including an 8-4 defeat at Chicago on Sunday.

Pittsburgh continues its series at Arizona on Wednesday and Thursday before traveling to San Francisco for a weekend set. Arizona hosts Pittsburgh again Wednesday and Thursday, then welcomes the New York Mets for three games starting Friday.

Interstat’s game simulator had projected a final score of Pittsburgh 5, Arizona 3. Interstat’s ELO system gave Arizona a 55.60 percent probability to win. Pittsburgh had been installed as a pregame favorite with a spread of minus-1.5.