Taylor Buchholz balked in the winning run, allowing pinch-hitter Kelly Johnson to score from third, and giving the Atlanta Braves a 5-4 victory over the Colorado Rockies in 10 innings Tuesday night.
Buchholz, pitching from the stretch, had already moved his feet to begin his windup when he paused, apparently wanting to restart the pitch.
Home plate umpire Wally Bell instantly threw up his arms and waved home Johnson for the winning run.
Omar Infante, who was preparing to face Buchholz at the plate, never took a pitch in the at-bat.
Julian Tavarez (1-2) earned the victory with a scoreless 10th inning.