Griffin played basketball and soccer in high school. She started playing rugby her first year at UCLA and was selected to the USA Rugby U23 team in 2006 and 2007 and USA Rugby AIG Women’s Collegiate All-Americans in 2007 and 2008. Griffin won the 2011 Women's Club Sevens National Championship with Berkeley All-Blues and was named MVP. She won the 2011 Women's All-Star National Championship with Pacific Coast and the 2011 Women's Premier League Championship with Berkeley All-Blues, leading the league in tries scored. A Resident at the Olympic Training Center, Griffin won bronze with the Eagles at the 2013 IRB Rugby World Cup Sevens in Moscow, Russia. Griffin has been a fixture for the USA on the World Series since the inception of the residency program in 2012.