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.
Fans, researchers, historians and even the players argue all the time about who was the fastest pitcher of all-time. The most widely quoted response is Nolan Ryan, whose fastball was officially clocked by the Guinness Book of World Records at 100.9 miles per hour in a game played on August 20, 1974, versus the Detroit Tigers. A record that's still included in the book.