Kacy Esther Catanzaro, nicknamed The Mighty Kacy, is an American gymnast noted for being the first woman to qualify for the finals of the television sports challenge American Ninja Warrior. Born in Glen Ridge, New Jersey, Catanzaro grew up and attended high school in nearby Belleville. She is a relatively small woman, standing 5 feet tall and weighing only 100 pounds. She began doing gymnastics at age 5. She attended Towson University in Towson, Maryland from 2009 until 2012, studying early childhood education on an athletic scholarship. She competed in gymnastics for Towson in Division I of the National Collegiate Athletic Association and was named the Southeast Regional Gymnast of the Year in 2012. She was also named the 2012 Eastern College Athletic Conference Gymnast of the Year and was the top-ranked competitor in that conference for that year. She has worked for Alpha Warrior, an obstacle-course gym in San Antonio, Texas, since February 2013. Catanzaro spent two years training for American Ninja Warrior alongside her boyfriend and co-competitor Brent Steffensen. She did not complete the qualifying course in Venice, California but was a wildcard at the 2013 finals. 

January 14th, 1990 in Glen Ridge (Age 34)