Edward Leroy Koffenberger was an American stand-out basketball and lacrosse player for the Duke University in 1945–46 and 1946–47. He is considered Duke's first "two-sport star" even though most of his accolades came from playing basketball. A native of Wilmington, Delaware, Koffenberger was the only First Team All-American basketball player from his home state when the Helms Foundation awarded him the distinction. As a 6 ft 2 in (1.88 m) center, Koffenberger led the Blue Devils in scoring during both seasons he played for them, and during his senior season of 1946–47, he led the Southern Conference in both scoring and rebounding. He was a two-time All-American and two-time All-Conference selection in basketball, and in lacrosse he was a one-time All-American for his intimidating defensive presence. In 54 career basketball games he scored 733 points, including a then-Duke record 416 in 1946–47.