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Trevor Tierney

SEC Contributing Member

Co-Founder and Principal of Delta Developmental


Co-Founder and President of LXTC Lacrosse

Trevor Tierney is a performance and developmental coach and graduate student at Harvard University. Trevor holds a B.A. in Developmental Psychology from Princeton University and is currently working on his psychology masters thesis on adult development in college athletics through Harvard University. In spring of 2015, Trevor also developed a developmental education and leadership training curriculum for the University of Denver men’s lacrosse team which won its first NCAA Div I National Championship in school history.

Trevor Tierney grew up with Hall of Fame Lacrosse Coach, Bill Tierney as his father and was constantly involved in the game from a young age. At five years old, he started playing youth lacrosse and quickly learned that he wanted to be a goalie. Every day after school, he would go to his father’s team practices to watch and play the game he loved. His athletic dream as a child was to play for his father at Princeton University, win a NCAA National Championship and be a great lacrosse player, himself.

Those dreams ended up panning out for Trevor with a lot of hard work and determination. He is the only goalie in the history of the game to have won an NCAA Championship, an ILF World Championship, and an MLL Championship. Trevor was a two-time All-American at Princeton University, where he won two NCAA Div I National Championships. Trevor then went on to be named All-World Goalie in the 2002 ILF World Championships in Perth, Australia. In 2005, Trevor also won an MLL Championship with the Baltimore Bayhawks. Trevor finished his playing career in 2007 after playing two seasons with the Denver Outlaws and being named to his fifth MLL All-Star game. In 2012, he was inducted into the New Jersey Lacrosse Hall of Fame. He also served as an assistant coach for the University of Denver men’s lacrosse team between 2009 and 2015.

However, these accomplishments are only a small part of Trevor’s story. He has always been interested in psychology and personal development and his senior thesis at Princeton was entitled, “Playing In The Zone: The Psychological Aspects Of Peak Performance In Sports”. He continues to further his education and network with others who are interested in this cultural revolution within sport. Trevor is currently in the research process of his master’s thesis entitled, “Developmental Maturity, Psychological Resilience, and Alcohol Abuse in Collegiate Student-Athletes”.

EDUCATION: Trevor Tierney is finishing up his Masters in Psychology at Harvard University and his Bachelor of Arts in Psychology is from Princeton University. Trevor is also certified in the Subject-Object Interview, an intensive measurement towards evaluating adult developmental stage. Trevor has also taken the full array of workshops including Jennifer Garvey-Berger’s program, Cultivating Leadership, which is a certification program towards supporting adult development in others; the Leadership Circle Profile, which is a leadership assessment tool for organizational leaders and team culture; and the Regenesis Group, which focuses on regenerative work for the community on a wide-range of projects and topics.