The game was suspended with the score tied at 2-to-2 after ten innings and three rain delays last night.
Before this year, it would have become an official tie game and would have been replayed from the start. But under the rules change made during the offseason, it was picked up where the teams left off.
Fielder finished 4-for-4 with three singles, a double and three walks.
Renyel Pinto, who lost in his first major league decision, relieved to start the 13th and walked Rickie Weeks leading off. Weeks advanced on Craig Counsell's sacrifice and J-J Hardy's groundout, then scored on Fielder's hit to right.
Elmer Dessens pitched a scoreless 12th for his first victory for the Brewers.