Ian Desmond picked a good time to get his first home run at Coors Field as a member of the Colorado Rockies. Desmond hit a game-changing three-run homer in the fifth and finished with four RBIs to help the Rockies beat the San Francisco Giants 10-8 on Friday night. Colorado rookie Antonio Senzatela battled through six innings to tie for the major league lead in wins, and DJ LeMahieu had four hits for the second straight game for the Rockies, who have won seven straight over the Giants.