Mariellen Gero was born and raised in Virginia Beach, Virginia where she attended Kellam High school and played four years of varsity volleyball. Three of those years she was named team captain, MVP and in her senior year was named to the All-State team and as Female Athlete of the Year. These accomplishments, along with her participation in club volleyball, gained her recruitment to the United States Naval Academy following graduation.
Gero competed as a setter for four years at the United States Naval Academy. After graduation in 2007, she moved to San Diego to serve her military commitment on board USS Antietam (CG-54). In 2009 she was invited to play with the All-Navy Volleyball team and competed with them at the Adult National Volleyball Tournament as well as the All-Armed Forces tournament where they brought home a gold medal.
While in San Diego, Gero was the assistant varsity volleyball coach at Coronado High School for the 2009-2010 and 2010-2011 seasons. She also helped coach the Coronado Middle School team and was a coach for Tsunami Volleyball Club.
This is Mariellen's second season as a Volunteer for the Lady Jets.