The ASPCA Alfred B. Maclay Horsemanship Championship, known simply as “the Maclay,” is the most prestigious equitation class for under 18-year-olds in North America. Held every fall since 1933, the championship is considered a proving ground for future champions and many teens tailor their junior riding years specifically toward the class. The winners' list is a who’s who of the North American hunter-jumper world and includes American riders William C. Steinkraus (1941), Frank Chapot (1947), George Morris (1952), J. Michael Plumb (1957), Conrad Homfield (1967), Leslie Burr (1972), and Jessica Springsteen (2008), among others. Four Canadians have also won the coveted championship trophy — Laura Tidball (1980), Erynn Ballard (1998), Brian Walker (2001), and Sam Walker (2018) — and all four of them have subsequently represented Canada in show jumping competitions.