|Born:||July 15, 1987|
|Height:||6 ft 5 in (1.96 m)|
|Weight:||297 lb (135 kg)|
|* Offseason and/or practice squad member only|
|Career highlights and awards|
|Player stats at ArenaFan.com|
Duncan was born and raised in Magnolia, Kentucky. He is the son of Steve and Fonda Duncan. Duncan has three younger siblings Drey, Christian, and Christina Duncan. Zipp attended Elizabethtown High School in Elizabethtown, Kentucky and graduated in 2005, along with football teammates Brandon Deaderick and Chris Todd.
Duncan played under his father Steve Duncan who was an assistant coach. Duncans father also coached at Ft. Knox, Lone Oak high school and Murray High School.
Duncan played college football at the University of Kentucky. He played in 12 games as a tight end before switching over to the offensive line in 2007. As a senior in 2009, Duncan earned second-team All-SEC honors as a left tackle.
He is a football coach at Dublin Jerome High school in Dublin Ohio