Vulcan changeup

It is thrown with fastball arm speed but by pronating the hand by turning the thumb down, to get good downward movement on it.

[1] Among the others who have thrown it are John Gant,[2] former relievers Randy Tomlin[3] and Joe Nelson,[4][5] and most notably former all-star closer Éric Gagné, for whom the vulcan changeup was considered one of his best pitches.

[6] Roy Oswalt adopted this pitch during the 2010 offseason and preferred it over the circle changeup.

[7] Number 1 pick of the 2023 draft, Paul Skenes, throws a vulcan changeup.

"[9] The pitch has been nicknamed the "Trekkie", because of the Vulcan symbol, from the television show Star Trek, that appears in the grip of the ball.