Vulcan changeup

In baseball, the vulcan changeup pitch (otherwise known as a vulcan or trekkie) is a type of changeup; it closely resembles a forkball and split-finger fastball. It is a variation of the circle changeup, and when mastered can be extremely effective. Much like a forkball, the vulcan is gripped between two fingers on the hand, but rather than the middle and index finger as with the forkball or split-finger fastball, it sits in between the middle and ring fingers to make a v-shape (Vulcan salute) when releasing to the catcher. It is thrown with fastball arm speed but by pronating the hand by turning the thumb down, to get good downward movement on it.

Vulcan changeup

In baseball, the vulcan changeup pitch (otherwise known as a vulcan or trekkie) is a type of changeup; it closely resembles a forkball and split-finger fastball. It is a variation of the circle changeup, and when mastered can be extremely effective. Much like a forkball, the vulcan is gripped between two fingers on the hand, but rather than the middle and index finger as with the forkball or split-finger fastball, it sits in between the middle and ring fingers to make a v-shape (Vulcan salute) when releasing to the catcher. It is thrown with fastball arm speed but by pronating the hand by turning the thumb down, to get good downward movement on it.