Flaherty compiled seven strikeouts and gave up two earned runs on two hits and one walk over four innings in Tuesday's 4-4 Grapefruit League tie with the Marlins.
The 22-year-old right-hander doubled up his workload from his first two outings and was impressive from a swing-and-miss perspective. Flaherty did get touched up for a two-run home run by Lewis Brinson in his final frame, but he gave up only a single otherwise. It was an encouraging turn for the starting-rotation hopeful, who now has a 12:3 K:BB over eight frames in three spring training appearances.