With the bases loaded and Colorado having already pushed two runs across in the final frame, the pinch-hitter Paulsen quickly fell behind two strikes to Arizona reliever Matt Reynolds. The left-hander had come with a pair of fastballs and tried to sneak in a third, but Paulsen ripped the last heater hard up the middle.
Nolan Arenado and DJ LeMahieu scored easily, giving the Rockies their fourth win this season when trailing after eight innings.
"We've done that all year," Paulsen said.