Petri earned All-America and All-MPSF honors at Cal in 1998 and 1999, and finished her college career with 96 goals.

She sat out her senior season as a member of the first US women's Olympic water polo team and graduated from Berkeley in 2002 with a degree in integrative biology.

Petri also won a gold medal in the 2003 World Aquatic Championships in Barcelona, Spain and in 2009 in Rome.

In June 2009, Petri was named to the USA water polo women's senior national team for the 2009 FINA World Championships.

She currently works as an assistant coach for the Cal Women's water polo team under former olympic teammate Coralie Simmons.