Considered a three-star recruit by Rivals.com, Hardin was listed as the No. 23 power forward and the No. 89 player in the nation in 2004.
Hardin attended the University of California, Berkeley, where he played all of his four collegiate seasons for the Golden Bears and majored in social welfare. He declared for the 2007 NBA draft, but withdrew his name shortly before the event.
Hardin was selected 50th overall in the 2008 NBA draft by the Seattle SuperSonics, but suffered a stress fracture in his left tibia and was unable to participate in training camp. In January 2009, he joined Greek first division club Egaleo AO, as a replacement for Andrae Patterson. Hardin had recently been released by Turkish team Mersin BB, after failing to properly recover from the stress fracture.
Hardin's draft rights, along with Chris Wilcox and Joe Smith, were traded to the New Orleans Hornets for Tyson Chandler on February 17, 2009. However, the trade was rescinded a day later, after Chandler failed his physical with the Thunder.
He played for the Philadelphia 76ers in the Orlando Pro Summer League in 2010. On August 1, 2010 Hardin signed with Elitzur Yavne in the second division in Israel.
On October 20, 2014 he was signed by Brazilian club Paulistano.
On April 5, 2015, Hardin signed with Barako Bull Energy of the Philippine Basketball Association for the PBA Governors' Cup.
