Yuko Sato ran 436 kilometres over 65 hours at an endurance event in Queensland over the weekend. (ABC News: Ashlin Blischeke)
Adelaide's Yuko Sato set a new national record for backyard ultramarathon at the Clint Eastwood Last One Standing in Queensland.
She completed 436 kilometres over the course of 65 hours straight.
While she regards running as competitive, Sato also finds it collaborative.
Among the lines of dialogue Clint Eastwood set into cinematic immortality is one about everyone having to know their limitations.
For competitors of a recent ultramarathon race named in honour of the Hollywood actor however, those limitations were very ambitious indeed.
In the case of Yuko Sato, they extended to 436 kilometres over the course of 65 hours straight — "course" being something of an operative word.
The runner recently completed that distance by doing laps around a public green space in suburban Brisbane.
Such was the scale of the challenge that it paid to think only a few steps ahead.
Yuko Sato at the Clint Eastwood Last One Standing at Rocklea over the weekend. (Supplied: Yuko Sato)
What started with ambition ended with something bordering on apparition.
"The next day I started to swell in the foot and now I can't fit into any shoes, so probably [for the] next three-to-five days I can't run."
Sato is an ultramarathon runner and competes in a gruelling format called a "backyard ultra".
At the recent race — the Clint Eastwood Last One Standing — at Oxley Creek Common in Rocklea, she set two records, she said — surpassing the Japanese and Australian female runner distance.
An exhausted but proud Yuko Sato breaks the Australian women record for backyard ultra. (Supplied: Yuko Sato)
