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.
It is uncertain what the fastest pitcher ever thrown has been, but there have been many claims. One of these claims was a made by a journalist for Sports Illustrated, George Plimpton in 1985. He said that a man going by the name of Sidd Finch had thrown a 168 mph (75.1 m/s) fastball.