Jaylin Davis bombed his first major league home run, a solo shot to center field with one out in the bottom of the ninth inning Wednesday night, giving the host San Francisco Giants a 2-1, walk-off win over the Colorado Rockies. Coming on the heels of an 8-5 loss in 16 innings in the series opener Tuesday, the Giants were able to square manager Bruce Bochy's career record as their skipper at 1,051-1,051 with just four games remaining before his announced retirement Sunday. Davis, who had entered the game 3-for-29 in his rookie season, capped a 2-for-4 performance with his blast off Rockies reliever DJ Johnson (0-2), who took over at the start of the inning.