PITTSBURGH -- The Padres collected nine runs on 11 hits and drew five walks. It was exactly the kind of offensive production manager Bud Black has been waiting for over their treacherous 11-game road trip.

The impressive thing was the Friars compiled those stats in just four innings.

San Diego jumped all over starter John Van Benschoten and most of the Pirates' pitching staff on Saturday night, earning at least a split in the four-game series with a 9-6 win over Pittsburgh at PNC Park.

"We really zeroed in on some hittable pitches and put some great swings on them," Black said. "We didn't extend the zone. We were patient. We got good pitches to hit. I think Van Benschoten was probably a little bit command-shy and we took advantage of it."

The offensive onslaught began in the first with Adrian Gonzalez's three-run rocket to center field. Nick Hundley followed four batters later with a ground-rule RBI double to take a 4-0 lead.

Kevin Kouzmanoff then sent Van Benschoten's 3-2 offering just over the wall in the second inning for a commanding 7-1 lead. It was the last pitch Van Benschoten would throw, after only 1 2/3 innings. His line: seven runs on six hits with four walks.

Gonzalez added a second home run in the fourth and Hundley added his own -- which was his first career homer -- to make the score 9-1 heading into the fifth.

"That was definitely the best one I've ever hit in terms of feel and running around the bases," Hundley said. "I'll always remember that one.

"It was great to get out early and really drive some balls and have quality at-bats."

Every Padres starter collected at least one hit with the exception of Edgar Gonzalez and Brian Giles. Gonzalez, Hundley and Kouzmanoff accounted for most of the offense, combining for six extra-base hits, nine RBIs and five runs.

"I've been kind of searching for some things and changing things up," said Gonzalez, who collected his ninth four-RBI game of his career -- the last coming on June 2.

The Padres first baseman is now 6-for-11 with three home runs, seven RBIs and five runs scored in three games against the Pirates this week.

"Instead of worrying about me, I worried about what I wanted to hit," he said of his current hot streak. "Today, I kind of just focused on what pitch I wanted to hit [and] what area. I was able to get some pitches that were comfortable to hit and that helped me a lot."

The benefactor was shaky Padres starter Josh Banks. The right-hander kept the Pirates at bay for the first four innings until allowing a home run in the fifth and sixth inings. Pinch-hitter Jason Michaels hit a two-run shot and first baseman Adam LaRoche added a solo homer.

"I don't think I had my best stuff tonight," Banks said, "but you realize it's nice when you're out there and you're just trying to grind it out and get as many outs as you can."

It marked the third time in his last four games that Banks have given up two home runs in a single contest. The home runs, coupled with another RBI hit by Michaels off reliever Cla Meredith, allowed the Pirates to creep within four at 9-5.

It took Black four relievers, including Meredith, to shut down the Pirates the rest of the way. Right-hander Mike Adams escaped a two-out, runners-on-the-corners situation in the seventh by inducing third baseman Doug Mientkiewicz into a ground out.

Jose Bautista made it a three-run game with two outs in the ninth with his 12th home run of the year, but Trevor Hoffman came in to record the last out, and in the process, set a Major League record with 14 consecutive seasons of 20 or more saves, passing Lee Smith.

"They fought back," Black said. "I think Josh tired a little bit. He had some quick innings. The Pirates kept battling, [but] we got it done."

Jody Gerut denied Pirates left fielder Jason Bay of extra bases in the third with a gutsy catch along the wall in center field. Gerut was able to hold on to the ball, despite banging his knee into the fence in front of the Padres' bullpen.