Ken Prothero is in his first season with the Mighty Macs in 2025.
Prothero joins Immaculata after serving as the assistant girls soccer coach at the Espicopal Acadmey in 2025.
Prior to his time at Episcopal, Prothero was the head women's soccer coach at Cabrini University from 2002 through 2023. His career record was 218-151-49. He led the Cavaliers to 10 conference championships across the PAC, CSAC, and AEC, and 10 appearances in the NCAA Tournament. Prothero was named the conference Coach of the Year in 2007, 2010, and 2014. Under Prothero, his teams made four international trips, including to Brazil, Portugal, Italy/Germany, and South Africa.
Prothero and the Cavaliers entered the CSAC record book in 2015, becoming the first women's soccer team in league history to win five straight league titles.
In just his second season at Cabrini in 2003, Prothero guided the Cavaliers to the conference title and earned a bid to the NCAA Tournament for the first time in program history.
Prior to taking the reins as head coach at Cabrini in 2002, Prothero served two seasons (2000-01) as an assistant with the Cavaliers under Diane Pierangeli, who started the program in 1994. Leslie Danehy, former Cabrini Athletic Director and early mentor, was also an assistant coach with Prothero at the time.
Before Cabrini College, Prothero spent two seasons (1998-99) as an assistant coach and goalkeeper trainer with the men’s soccer program at Arcadia University with Tom Roller.
In his collegiate years, Prothero was a goalkeeper at Bucknell University in Lewisburg, Pa. He graduated in 1996 with a degree in elementary education and a minor in computer science. He played soccer and baseball at Glen Ridge High School in northern New Jersey.
Prothero holds National, State, and Goalkeeper Level I & II Coaching Diplomas from the National Soccer Coaches Association of America (NSCAA).