As Brian Bogusevic’s walk-off single shot through the right side of the drawn-in infield Friday night, Steve Pearce sprinted home for the winning run with his right arm reaching for the sky. Pearce tagged home and then bolted toward the right side of the infield, where the young Astros pounded on Bogusevic, tossed caps in the air and carried their beehive dance all the way to shallow right center field.