The Ivy Preparatory School League is a high school athletic conference of university-preparatory schools in New York City and its suburbs. The Ivy Preparatory School League has no affiliation with the Ivy League universities. Members The league comprises the following schools: Collegiate School in Manhattan Dalton School in Manhattan Hackley School in Tarrytown, Westchester County Fieldston School in Riverdale, Bronx Horace Mann School in Riverdale, Bronx Poly Prep in Brooklyn, New York Riverdale Country School in Riverdale, Bronx Trinity School in Manhattan Former members Adelphi Academy in Brooklyn New York Military Academy in Cornwall, Orange County St. Paul's School in Garden City, Nassau County, now closed The Stony Brook School in Brookhaven, Suffolk County Sports offered The league offers competition in the following sports: Fall sports Cross country (boys) Cross country (girls) Field hockey (girls) Soccer (boys) Soccer (girls) Tennis (girls) Volleyball (girls) Water Polo(coed) Winter sports Basketball (boys) Basketball (girls) Indoor track (boys) Indoor track (girls) Squash Swimming (boys) Swimming (girls) Wrestling (boys) Spring sports Baseball (boys) Golf Lacrosse (boys) Lacrosse (girls) Outdoor track (boys) Outdoor track (girls) Softball (girls) Tennis (boys) Ultimate Frisbee (boys) Ultimate Frisbee (girls) Not all member schools compete in all sports. Collegiate School is an all-boys school. Notable athlete alumni High school graduation year is in parentheses. Collegiate Ian McGinnis (1997), basketball, NCAA-leading rebounder at Dartmouth Hackley Danya Abrams (1993), basketball, three-time All-Big East first-team at Boston College Horace Mann Pedro Álvarez (2005), baseball, Pittsburgh Pirates and others Harrison Bader (2012), baseball, St. Louis Cardinals Kimberly Belton (1976), basketball, member of the Stanford Athletic Hall of Fame and 1980 draft choice of the Phoenix Suns Bethany Donaphin (1998), basketball, New York Liberty Poly Prep Joakim Noah (2004, from Lawrenceville School), basketball, Chicago Bulls and others Brian Flores (1999), football, Boston College, Head Coach for Miami Dolphins Isaiah Wilson (2017), football Tennessee Titans, Offensive Lineman Riverdale Calvin Hill (1965), football, Dallas Cowboys and others Trinity John McEnroe (1977), tennis Patrick McEnroe (1984), tennis References High school sports conferences and leagues in the United States