The Westfield Sydney to Melbourne Ultra Marathon was an annual ultra-marathon foot race held between 1983 and 1991. The 875 kilometres (543.7 mi), five-day event was regarded as one of the toughest in the world. It was particularly notable for having been won in 1983 by an almost unknown, 61-year old potato farmer Cliff Young

Cliff Young (athlete)

Albert Ernest Clifford "Cliff" Young was an Australian potato farmer and athlete from Beech Forest, Victoria, best noted for his unexpected Westfield Sydney to Melbourne Ultra Marathon win at 61 years of age.-Early life:...

. The final running of the event included prizemoney ($60,000 for first place), a handicapping system and a change to the course. It ceased being held when the major sponsor, Westfield Group, withdrew its support.

1983

1. Cliff Young
   Cliff Young (athlete)
   Albert Ernest Clifford "Cliff" Young was an Australian potato farmer and athlete from Beech Forest, Victoria, best noted for his unexpected Westfield Sydney to Melbourne Ultra Marathon win at 61 years of age.-Early life:...
   
   : 5d 15h 04m
2. George Perdon: 6d 01h 00m
3. Siggy Bauer: 6d 05h 00m

1984

1. Geoff Molloy: 6d 04h 02m
2. John Hughes: 6d 06h 00m
3. Wal McCrorie: 6d 16h 21m

1989

1. Yiannis Kouros: 5d 2h 27m
2. David Standeven: 5d 13h 55m
3. Kevin Mansell: 5d 22h 59m

1991

1. Bryan Smith: 6d 12h 50m (24h handicap)
2. Tony Collins: 7d 4h 17m (12h handicap)
3. Andrew Law: 7d 9h 32m (12h handicap)
4. Maurice Taylor: 6d 23h 22m (24h handicap)
5. Kevin Mansell: 7d 2h 26m (24h handicap)