Adrian "Addie" Joss (April 12, 1880 – April 14, 1911), nicknamed "the Human Hairpin", was an American professional baseball pitcher. He pitched for the Cleveland Bronchos of Major League Baseball, later known as the Naps, between 1902 and 1910. Joss, who was 6 feet 3 inches (1.91 m) and weighed 185 pounds (84 kg), pitched the fourth perfect game in baseball history (which, additionally, was only the second of the modern era). His 1.89 career earned run average (ERA) is the second-lowest in MLB history, behind Ed Walsh, while his career WHIP of 0.968 is the lowest of all-time.
Joss was born and raised in Wisconsin, where he attended St. Mary's College (later part of Wyalusing Academy) in Prairie du Chien and the University of Wisconsin. He played baseball at St.