Rickie Weeks scored on Prince Fielder's 13th inning single as the Brewers finished off a suspended game from the day before with a 3-2 win.
Weeks turned around and homered and tripled in the next game, leading the Brewers to a 5-2 win in the nightcap.
Elmer Dessens worked a scoreless 12th for his first win as a Brewers in the suspended game.
Dave Bush rebounded from a season opening loss by allowing 1 run on 10 hits in six innings of work in the nightcap.
The wins for the Brewers end a 9-game slide against the Marlins. They'll take the day off today.