Transgender is also an umbrella term: in addition to including people whose gender identity is the opposite of their assigned sex (trans men and trans women), it may include people who are not exclusively masculine or feminine (people who are genderqueer, e.g. bigender, pangender, genderfluid, or agender).
Chapman holds the record for the fastest recorded pitch speed in MLB history at 105.1 mph (169.1 km/h) as well as the Guinness World Record for fastest baseball pitch for a male.
And the winner is.... Nolan Ryan with a 108.1 MPH reading according to the doppler laser radar readings that were used in 1974. The Ryan Express was really bringing the heat that night in 1974, throwing the fastest pitch ever recorded in a Major League Baseball game.