Westfield Sydney to Melbourne Ultra Marathon

The Westfield Sydney to Melbourne Ultramarathon was an annual ultramarathon foot race held between 1983 and 1991. It was sponsored by the Westfield Group, with the start being at Westfield Parramatta shopping centre and the finish at Westfield Doncaster shopping centre (formerly known as "Doncaster Shoppingtown").

The 875-kilometre (544 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 Cliff Young, an almost unknown 61-year-old potato farmer from Beech Forest, Victoria. The record is held by Yiannis Kouros: 5d 02h 27m.

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

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