Ron Clarke and John Landy are the official ambassadors for the Peter Mac Melbourne Mile, a run also supported by Steve Moneghetti, raising funds for research and care at the Peter MacCallum Cancer Centre.
The mere 1.6km Federation Square foot race is aimed to challenge competitiors against the clock.
Enter the Thursday lunchtime event as an individual, a team, a corporation or a school.
The Peter Mac Melbourne Mile is on Novemebr 13.