"We got the win," he said. "That's all that matters."
Power pitching coach Jeff Johnson was impressed by Black, who started the season with the Bradenton (Fla.) Pirates while rehabilitating a left oblique injury.
"I thought he did well," Johnson said of Black, who drove his car to West Virginia on Tuesday and took the team bus to Hagerstown on Wednesday.
"The guy has a big arm. The first start of the year can be pretty exciting with the crowd and that kind of thing, but he pitched well and stayed under control."
Black was the 49th overall pick in last year's Major League First-Year Player Draft, when Pittsburgh acquired him with a supplemental pick in the first round.
The Pirates used the compensation selection they received for not signing Tanner Scheppers two years ago.
Black immediately signed for $717,000, which was only $600 more than the bonus money slotted for that spot. He made his professional debut on June 30, 2009.
Black had a 1-2 record and 3.45 earned run average in 13 appearances - seven of them starts - with the State College (Pa.) Spikes last year.
He was limited to a strict pitch count and wasn't permitted to throw more than three innings per outing last season, finishing with 33 strikeouts and 15 walks in 311/3 innings.
"Just out of the draft and just out of college, (the Pirates) wanted to keep him healthy," Johnson said of Black, who didn't begin pitching until his senior year of high school. "They wanted to get him acclimated and protect him a little bit."
The Pirates' restrictions on Black's arm didn't keep Baseball America from naming him the sixth-best prospect in the New York-Penn League last season.
Pittsburgh officials look at Black primarily as a reliever or closer prospect. However, Johnson said he will continue to serve as a starter for the Power.
"Right now, with that kind of arm, he's definitely going to start for a while," Johnson said. "He's going to learn how to pitch. Down the road, we'll figure out where he's going to be. If he can throw the ball over the plate, he has a good enough arm to start.
"The power arms and the big arms, you generally want them to start to get them more innings. The more innings they throw, the more they learn about themselves. Their roles can change later. It's no big deal."