Reds 4, Brewers 3 (10)
Reds 4, Brewers 3 (10): Jay Bruce launched a walk-off solo homer with one out in the bottom of the 10th inning as host Cincinnati took the series opener.
Bruce, who was hitless in his previous three at-bats, took a 1-2 offering from Burke Badenhop (0-3) over the fence in left field for his fifth career game-ending homer for the Reds, who won their fifth straight over Milwaukee at home.
The Brewers forced extra innings when Martin Maldonado hit a solo shot off Cincinnati starter Bronson Arroyo with two outs in the eighth to forge a tie at 3. The Reds stranded a pair of runners in the bottom of the ninth before Alfredo Simon (5-2) worked a perfect 10th to set up Bruce's heroics.
Arroyo allowed three runs - two earned - and a season-high 12 hits while striking out five in 7 2/3 innings. Kyle Lohse gave up three runs - one earned - in six frames for Milwaukee as the teams combined to commit five errors.
Brandon Phillips had an RBI single in the bottom of the first to give Cincinnati a 1-0 lead and Jack Hannahan's sacrifice fly after one of two Milwaukee errors snapped a tie at 2 in the sixth. Rookie Scooter Gennett hit a solo homer in the third for Milwaukee, the first of his career.
GAME NOTEBOOK: Brewers LF Ryan Braun (thumb) missed his fourth straight game and may be headed to the disabled list. ... Reds setup man Jonathan Broxton has swelling in his right elbow and may sit out the weekend set. ... Cincinnati has won 11 of its last 13 against Milwaukee at Great American Ball Park.