Career
1980–1982
Frayne won his first Australian 200 metres title in Sydney in March 1980, running 21.20 seconds into a 3.6 m/s headwind. Later that year, he set a personal best of 20.59 seconds (−0.5 m/s) in Canberra on 21 December. Frayne retained the national title in Adelaide in 1981 with a time of 20.71 seconds (+0.2 m/s). At the Pacific Conference Games in Christchurch that year, he finished second in the 200 m and 4 × 100 m relay and won the 4 × 400 m relay.
After finishing second in the 200 m at the 1982 Australian Championships, Frayne competed at the 1982 Commonwealth Games in Brisbane. He progressed through four rounds of the 200 m before finishing fifth in the final in 20.72 seconds (+0.4 m/s), and was also part of the Australian 4 × 100 m relay team that placed fourth. Frayne won his first two national 200 m titles under South Australian coach Alastair Gordon and later trained under Neville Sillitoe.
1983–1984
In 1983, Frayne won his third Australian 200 m title, clocking 20.87 seconds in still conditions in Melbourne. At the inaugural World Championships in Helsinki that August, he advanced through the heats and quarter-finals of the 200 m before finishing seventh in his semi-final in 20.94 seconds (+1.4 m/s).
In 1984, Frayne won the Australian 400 m championship in 45.96 seconds after running 45.95 in his heat. At the Los Angeles Olympics, he won his opening 400 m heat in 46.08 seconds and ran 45.35 in the quarter-finals before recording a personal best of 45.21 in the semi-finals, where he finished fifth and missed the final by one place. In the 4 × 400 m final, Frayne led off an Australian team also comprising Darren Clark, Gary Minihan and Rick Mitchell. The quartet finished fourth in 2:59.70, setting Australian and Oceanian records.
1985–1986
At the 1985 IAAF World Cup in Canberra, Frayne represented Oceania in the 4 × 400 m relay, combining with Minihan, Alan Ozolins and Clark to finish third in 3:01.35. He remained among Australia's leading 400 m runners the following season, placing fourth at the 1986 Australian Championships in 46.39 seconds. At the 1986 Commonwealth Games in Edinburgh, Frayne reached the 400 m final, finishing seventh, before winning silver in the 4 × 400 m relay as Australia recorded 3:07.81.
Frayne's Olympic personal best of 45.21 also stood as the South Australian 400 m record for more than 41 years, until Aidan Murphy ran 45.12 seconds in Adelaide in January 2026.
Australia
