Coaches & Executive Board Members

The parent support group for field hockey is served by volunteer parents along with the Head Coach and Athletic Director at Great Oak.

Head Coach

Katie Gerfen - Coach Gerfen is a graduate of the University of Virginia where she played at the collegiate level. She served as team captain in 2003 and 2004 after being named all-ACC in 2001. A 2003 All-American while at Virginia, she was second on the team with 23 points (seven goals, nine assists). She left Charlottesville having scored 16 goals and assisting on 17 others, including six game-winning goals and five game-winning assists. Prior to her time at Virginia, Gerfen was a member of the U-16 USA Field Hockey Team as well as the U-19 team, and was a high school All-American from 1997-99 at Warwick High School in her hometown of Lititz, Pa. She was also a high school All-American honoree in softball in 1999.

Coach Gerfen's coaching experience began in 2001, where she worked as a coach for college field hockey camps around the country. She spent six years as an assistant coach with the Warwick Youth Field Hockey program in Lititz, Pa., where she planned and facilitated drills for athletes ages 5-14. She has several years as an assistant collegiate coach at Ohio and Indiana Universities. Her coaching experience also includes one year as an assistant coach with the US Field Hockey Association Futures Program in Richmond, Va., where she planned, coordinated and taught activities for high school student-athletes in preparation to play collegiate field hockey.

Assistant Coach

Amber DeHaven - Coach Amber's daughter joined the field hockey program in 2017 and her love of the game persuaded coach to volunteer with the program in a coaching capacity for 2018. Coach Amber has experience coaching soccer and has applied this knowledge as she furthers her knowledge of field hockey.

The following positions and officers are voted annually and elected by the PSG.


In search for

Vice President

In search for


Julie Gonzales - Julie has served as Treasurer of the Field Hockey PSG since July 2017.


Christine Ko - Christine has served as Secretary since October 2018.

The board can be reached at