On June 2 Parellis broke the national record with a throw of 63.63m. at Heraklion, Crete, Greece while the following day at Chania, Crete, Apostolos again broke the NR, this time by thrashing the national record with a throw of 65.36m. In August, Parellis competed at the 2012 Summer Olympics in London. With a throw at 63.48m. the Cypriot finished in 13th position overall, just one spot and seven centimetres away from the final. By finishing 13th in the discus event, Parellis currently has the highest placing (tied with high jump athlete Kyriakos Ioannou) by an athlete representing Cyprus in the Olympic Games track and field events.