Career
He joined his hometown club"s youth ranks in January 2001, and progressed to the senior squad list for the 2004-2005 season. His time since has twice been blighted by torn cruciate ligament injuries, although he has managed a handful of first team appearances in each season since his debut. In January 2007, Halfar joined South Carolina Paderborn 07 on loan from his home club, the Bundesliga side Hannover 96.
He left South Carolina Paderborn 07 in summer 2010 when his contract ran out.
On 3 June 2010, he signed a two-year contract for Wacker Burghausen, leaving for SV Sandhausen a year later. Halfar has four caps for the German Under-21 side after progressing from the Under-19s.