Ellers joined the Bryn Mawr lacrosse coaching staff for her first season in 2017.

Ellers graduated from Georgetown in 2004 with a degree in psychology. She was a four-year starter and a key factor in the Hoyas earning four-consecutive trips to the NCAA Tournament, including appearances in the 2001 and 2002 NCAA Championship game.

Ellers also helped Georgetown continue its undefeated streak in BIG EAST Conference play en route to four-straight league titles. A tri-captain of the 2003 & 2004 squads, Ellers was a two-time First Team All-American and BIG EAST Defensive Player of the Year (2003, 2004). She earned a spot on the 24-member 2004-05 U.S. Development Team and was one of five finalists for the 2004 Tewaaraton Trophy, given annually to the top collegiate player in the nation. A 2004 All-Region First Team and NCAA All-Tournament Team member, Ellers led the country in caused turnovers for the second year in a row in 2004 with a 3.66 per game average and is Georgetown's all-time leader in the category with a total of 204. She ranks fourth in career ground balls on the Hilltop with 216. The midfielder earned a record five BIG EAST Defensive Player of the Week honors during the 2004 season and was a unanimous selection for the All-BIG EAST First Team. She holds the top three spots in the GU record books for most caused turnovers in a single season (2001, 2003 and 2004).

Ellers continued her playing career on the U.S. women's lacrosse Elite team roster where she was on the squad for four seasons. In June of 2008, she traveled with the team to the Prague Cup where the U.S. team allowed just one goal and won the final match over England, 13-1. Additionally, during the summer of 2009, she returned to Prague for the FIL World Cup where the United States went undefeated and brought home the gold medal.