Calvin Louis Petersen is an American professional ice hockey goaltender for the Lehigh Valley Phantoms of the American Hockey League while under contract to the Philadelphia Flyers of the National Hockey League.
He was selected in the fifth round, 129th overall by the Buffalo Sabres in the 2013 NHL Entry Draft. On July 1, 2017, he signed a two-year entry-level contract with the Kings as an unrestricted free agent.
Prior to turning professional, Petersen played NCAA hockey for the University of Notre Dame. He set a Division I record of 87 saves during the longest collegiate hockey game ever. Petersen was named to the All-Rookie Team and First All-Star Team while at Notre Dame.