It was at the 1985 Rotorua Marathon that Peter Sheaf "caught the bug".

At the sprightly age of almost 50, Sheaf took on the marathon for the first time and said a spark was ignited resulting in the completion of 20 international, and countless national, marathons.

This weekend he returns to the place it all started to take on the 10km walking event at the 55th Rotorua Marathon.

And yes, your math is correct – Sheaf is now 83.

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"The 21st running of this great event [the 1985 Rotorua Marathon] began a lifetime of worldwide marathons for me so naturally,

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