Estill owned the paint at Kentucky from 2001 to 2003, holding the program's career field goal percentage record at 60.1% and averaging 11.6 points per game as a junior on the 32-4 squad of 2002-03. The 1999 Kentucky Gatorade Player of the Year from Madison Central, he chose Kentucky after attending Midnight Madness and became one of the most efficient interior scorers in program history. He later returned to UK to complete his degree, graduating in 2013.