Antalfy was born on 1 April 1987,[1] and is from Georges Hall,[2] New South Wales.[3] He is legally blind[2] as a result of retinitis pigmentosa, a hereditary disease.[1] Beyond swimming, he also is involved with surfing, waterskiing and wake boarding.[1]
Swimming
Antalfy is a S13 classified swimmer[1][2][4] swimming in 100 metre butterfly, 50 metre freestyle and 50 metre freestyle events.[1] He is a member of the Hunters Hill Swimming Club.[2] When at the club, he is trained by Bash Zidan.[2]
Antalfy started competing in 1995.[1] In 2005, he was a member of the MLC Marlins Swim Team where he was coached by John Bladon. As a member of the team, he was the first swimmer to compete at the National Open Short-Course Championship and make the finals. At the competition, he finished fifth in the 50m Butterfly event, with a heat time of 24.56 seconds, semifinals time of 24.49 seconds, and final time of 24.73 seconds. He set personal bests in the 100m Butterfly with a time of 57.74 seconds where he finished 35th overall, best time in the 50m Freestyle with a time of 23.81 seconds while finishing 38th overall.[5] He won three gold medals and one silver medal at the 2011 Tasmanian State Championships.[1] He broke six world records in four different events during the 2012 Australian national swimming championships.[2]
Antalfy first represented Australia in 2011, competing in the Para Pan Pacific and Arafura Games that year.[1] He earned a gold medal at the Arafura Games in the 50m backstroke event, a silver medal in the 100m butterfly event, and three bronze medals 50m freestyle, 100m freestyle and 50m breaststroke events.[1] He was part of the November 2011 World Cup short course meet in Beijing.[6] That month he also competed in World Cup events in Singapore and Tokyo.[7] As a twenty-five years old,[2] he was selected to represent Australia at the 2012 Summer Paralympics in swimming in the 100m and 50m freestyle, 100m butterfly and 100m backstroke S13 events.[3][4][8][9] In the lead up to the Games, he trained at the Lane Cove Aquatic Leisure Centre.[2] In an average week, he had three total gym sessions and seven sessions in the pool.[2]