Career
Kalyvas played collegiate soccer for Princeton University and played for the California Storm in the WPSL. Kalyvas was one of eight American-born players that competed for the Greece women"s national football team at the 2004 Summer Olympics. She participated in the build-up to the Olympic tournament by playing in several friendlies, including a draw with Russia on 22 February 2004. She made two appearances at the final tournament as Greece finished last.