Mychal Givens (1-1) pitched the top of the ninth to earn the win.
Philadelphia led 2-0 but solo homers by Story — his first of the season — and Cron in the fourth tied it.
The Phillies made it 4-2 in the seventh on Andrew McCutchen’s sacrifice fly and a homer by Rhys Hoskins, his fourth. The Rockies got within a run in the bottom half and Hampson tied it with a solo homer in the eighth.
Vince Velasquez started for Philadelphia with left-hander Matt Moore on the COVID-19 list. It was Velasquez’s first start of the season and fourth appearance, and he left after allowing two runs on five hits in four innings.