By Jeremy Harness

AP photo: San Francisco Giants Buster Posey is greeted at home plate by Denard Span after scoring on a Ramiro Pena single in the second inning off Pittsburgh Pirates

When you’re on a roll, like the one that the Giants find themselves on these days, you just find different ways to win on a consistent basis.

Wednesday was one of those instances. The Giants found themselves down early on, but they got their bats going in the middle innings to pull out a 7-6 win over the Pittsburgh Pirates at PNC Park.

Jeff Samardzija had one of his more forgettable outings of the year – although there have not been very many – as he gave up six runs on six hits and lasted only three innings. Most of that damage was done in the second inning, as Gregory Polanco tagged Samardzija for a three-run homer that gave the Pirates a 5-1 lead.

Jung-ho Kang added a solo homer in the next inning, but the Giants would soon start their march. Brandon Crawford began the comeback with a single to right in the fourth, and the Giants added a pair more in the fifth to cut the lead to only two.

In the sixth, Ramiro Pena’s double narrowed Pittsburgh’s lead to a single run, and then Joe Panik scored him as well as Jarrett Parker with another double to give the Giants a lead that they would not relinquish.

However, the comeback would not have been made possible had the bullpen not stretched itself to help out Samardzija. After the starter was chased after the game following the third inning, five pitchers combined to give up only four hits the rest of the way and not a single run.

After not playing in the majors in 2015, Pena has had an impressive start to his tenure with the Giants. The third baseman, who is taking over for Matt Duffy, who was placed on the 15-day disabled list with a strained Achilles tendon, is batting .462 after five games, including going 2-for-5 on Wednesday and driving in a pair of runs in the process.

Crawford and Denard Span also had a pair of hits on Wednesday.