Trevor Tierney joined the Pioneer coaching staff in August 2009 after spending two seasons as the Defensive Coordinator for the Denver Outlaws of Major League Lacrosse. Upon his arrival, he served as the Pioneers first assistant coach, working primarily with the defense and the goalies.
After two seasons at the first assistant, Tierney stepped down to become the volunteer assistant and to take more responsibilities with the Pioneers' camp operations.
In his three seasons with the Pioneers, Tierney has helped the program amass an impressive 36-15 overall record (.706) and an even more impressive 16-3 conference mark.
Tierney's impact on the student-athletes at Denver has already resulted in three USILA Second Team All-American, one USILA Third Team All-American, six USILA All-America Honorable Mention selections, two USILA Scholar All-Americans, one ECAC Offensive Player of the Year, two ECAC Rookie of the Year award winners, one ECAC Defensive Player of the Year and Specialist of the Year, nine All-ECAC First Team selections and eight All-ECAC Second Team selections.
Tierney is the co-founder and vice-president of Icon Lacrosse and is the only goalie in the history of the game to have won an NCAA Championship, an International Lacrosse Federation World Championship and a Major League Lacrosse Championship.
Currently, Tierney manages the day-to-day operations of all DU men's lacrosse camps and clinics.
A two-time All-American at Princeton University where he won two NCAA Division I National Championships, Tierney was named 2001 Division I Goalie of the Year, All-Academic All-American and First Team All-American.
Upon graduation, Tierney went on to be named All-World Goalie for Team USA in the 2002 ILF World Championships in Perth, Australia, where the U.S. won the gold medal. He also played for Team USA in 2006, when the team won a silver medal in the ILF Championships.
His MLL career began in 2001 as he was chosen as a first round pick (second overall) in the inaugural MLL Collegiate Draft by the New Jersey Pride.
After a brief stop with the Boston Cannons in 2004, Trevor was traded to the Baltimore Bayhawks in 2005 where he earned MLL All-Star honors and was selected as the league's Week 6 Defensive Player of the Week. He started 11 games and posted a .537 save percentage while helping the Bayhawks to the MLL Championship.
In 2006, Trevor was acquired by the Denver Outlaws, where his impressive performance earned him two MLL All-Star appearances in 2006 and 2007. Tierney currently resides in Boulder and is pursuing his master's degree in psychology.