Among those who donned pink were Bryce Harper, Ian Desmond and Chad Tracy.
Harper went 2-for-5 and scored a pair of runs in the 9-6 loss to the Reds. His single to left field in the second inning broke a 0-for-9 streak through in the first two games in Cincinnati. Harper had struck out four times in those first nine at-bats.
"I've been feeling great at the plate, even the past couple of games, [even] if I had been struggling or not. But I've felt great at the plate," said Harper.
Desmond had two hits in his six at-bats, including a double in the third inning.
Pinch-hitter Tracy came up in the seventh inning and delivered a single that produced his seventh RBI off the bench this season.