Hand has made a good impression on Brewers manager Ron Roenicke.
"I thought Donny threw the ball really well," Roenicke said. "He understands how to pitch. He understands how to throw strikes."
Carlos Gomez had two hits for the Brewers, who lost their fifth straight game. He singled with one out in the sixth inning and scored Milwaukee's run on Yuniesky Betancourt's single with two outs.
Brewers shortstop Jean Segura extended his hitting streak to 11 games, but second baseman Rickie Weeks' run ended at a career-best 13 games.
Pittsburgh has won four straight games against Milwaukee and eight of 10 after losing nine in a row.
"We're playing good baseball," Hurdle said. "It's nice to get to 50 wins but we're just trying to meet the demands of the game, honestly self-evaluate and get better every day. There is still a long way to go."
NOTES: Milwaukee LF Ryan Braun (bruised left thumb) is scheduled to a swing a bat Tuesday for the first time since going on the disabled list, retroactive to June 10. ... Pittsburgh LHP Wandy Rodriguez (strained left forearm) won't make a scheduled rehab start Monday for Triple-A Indianapolis after experiencing discomfort in his forearm Friday during a bullpen session. ... Pirates RHP A.J. Burnett (strained right calf) is scheduled to pitch a simulated game Tuesday. That could be the last step before he is activated from the disabled list. ... Brewers RF Norichika Aoki didn't start for the first time since May 30 as Roenicke decided to rest him. Aoki pinch-hit in the ninth inning and flied out. ... The three-game series concludes Sunday with Milwaukee RHP Kyle Lohse (3-6, 3.69) facing Pittsburgh RHP Charlie Morton (1-1, 2.81).