Mason Martin homered in the bottom of the seventh of both ends of a double-header, providing the walk-off winning hit in each as Greensboro took a pair from Lakewood.
Indianapolis (22-18) dropped an 8-4 decision to visiting Norfolk (20-21) as the bullpen imploded to allow all the runs.
Luis Escobar (0-0, 0.96) made a spot start in place of the scratched Mitch Keller and although he threw only 20 of 40 pitches for strikes, threw three scoreless, one-hit innings. Brandon Waddell went next but didn’t fare nearly as well, coughing up four runs in two innings, three of them on a homer to #3 hitter Ryan Mountcastle (325/353/519), his sixth, raising Waddell’s ERA to 8.