Andrew Calof completed his first collegiate hat trick 58 seconds into overtime Friday, leading Princeton past Harvard 3-2.
Calof put the Tigers (4-7-4, 3-3-3 ECAC Hockey) ahead with goals in the first and second periods but Marshall Everson and Colin Blackwell scored for the Crimson (4-6-1, 3-4).
Raphael Girard made 33 saves for Harvard, while Sean Bonar stopped 16 shots for Princeton.
