Stephanie White is the only person I've ever played against that is famous. She beat me by about 9 in a game to 10, one on one in front of all my friends, after I trashed talked her during a pick up game my side won pretty easily, way back in high school. Had never heard of her at that point. She was hanging out at a softball game I went to with my friends.
Knew she was gonna be big, so got her to sign an autograph that I promptly lost, but remember exactly what she wrote on it... "Jason- Remember, girls can hoop too!"