Ashley Hernandez saw 13 tracked pitches in 2018.
Against Fastballs (10 seen), they have a 50% whiff/swing. When they connected (1 tracked), they generated 64mph average exit velocity.
Against Breaking Pitches (3 seen), they have a 67% whiff/swing.
Against Offspeed Pitches (0 seen), they have a 0% whiff/swing.