Samuel Harrison Mattis (born March 19, 1994) is an American track and field athlete who competes in the discus throw and has a personal record of 67.45 meters.
His biggest success to date is first place at the 2015 NCAA National Championships.He competes for the University of Pennsylvania Quakers in college and won a NCAA title while there.
His throw of 67.45 m (221 ft 3 in) to win the 2016 Philadelphia College Classic is the American Collegiate record and 2nd best mark in history by a college student.
He is enrolled in the Wharton School of Business at the University of Pennsylvania pursuing a Bachelor of Science in Finance and Operations Management.