Taoufik Makhloufi wins gold in the 800m after being reinstated to the Games . Sally Pearson asserted her dominance in the women 's 100m hurdles by winning Australia 's first track and field gold of the 2012 Games . Algerian was initially disqualified from Olympics for not trying hard enough in 1500m . Australia 's Sally Pearson takes gold in the 2.38 meters in an Olympic record time . Russia 's Robert Harting wins men 's high jump , Olympic 's Robert Harting the discus .
Taoufik Makhloufi wins gold in the 800m after being reinstated to the Games . Algerian was initially disqualified from Olympics for not trying hard enough in 1500m . Australia 's Sally Pearson takes gold in the 2.38 meters in an Olympic record time . Russia 's Robert Harting wins men 's high jump , Olympic 's Robert Harting the discus .