A native New Yorker, Aaron Kessler attended the Trinity School in New York City, and earned five varsity letters in swimming (including one in eighth grade). He was a four-year All-League swimmer in the 100 butterfly and 100 backstroke. Aaron was also a member of Asphalt Green Unified Aquatics (AGUA) where he swam for seven years before coming to Yale. While swimming for AGUA, Aaron was a Summer Zone Team member twice, as well as a member of the Empire State Games team twice. He has held numerous records in butterfly and backstroke at both Trinity and AGUA.

Aaron is entering his junior year after swimming for the past two years with the team. His most memorable moment was qualifying for the ECACs at last year's HYP meet in the 100 and 200 butterfly.

Yale has always been his number one college choice and Aaron is majoring Economics.