The Brewers scored in the first inning off Brandon McCarthy, who was debuting for the Dodgers. Gerardo Parra singled and was doubled home by Carlos Gomez. That was the only run allowed by McCarthy in his two innings.
The Dodgers tied the game with an unearned run in the third inning, when Parra dropped Yasiel Puig's high fly near the foul line, allowing Kike Hernandez to score from second as A.J. Ellis was thrown out at the plate to end the inning.
Milwaukee regained the lead in the fifth inning off Dodgers reliever Juan Nicasio on an RBI single by Hunter Morris.
Kyle Jenson slugged a two-run home run off Michael Blazek in the bottom of the 8th for a one-run lead, but Milwaukee answered in the top of the ninth, as Matt Clark tied it at 3-3 with a home run off Ryan Buchter.
The Brewers will be back at Maryvale Baseball Park to face the Reds. Heralded 25-year-old Jimmy Nelson will make his Cactus League debut after he threw two innings in a simulated game five days ago. Left-hander Jason Vargas will start for the Reds.
Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.