But then again he is only doing what his grandchildren told him to do.
Dunkley (83) is on a mission at the New Zealand Masters Games — his grandchildren have challenged him to win 50 gold medals and he is well on the way to achieving the target.
He took up competing in track and field events when he was 79 and has competed in the games in both Whanganui and Dunedin ever since, amassing 31 golds and seven silvers.
He keeps fit by running 5km a day, five days a week, playing golf twice a week and swimming 50 lengths once a week and is a member of the Nelson Harriers Club.
He said he does not eat junk food and drinks alcohol only on very special occasions.
On Saturday he was at the Caledonian Ground and competed in the 200m, 400m, 800m, 1500m, the long jump, shot put, javelin, discus and hammer throw.
He decided not to run the 100m sprint as he said he has slowed down a little and the longer distances do not make him look quite as bad when he finishes at the rear.
He said much of his success comes down to the lack of other competitors in his age group.
On Saturday his medal haul increased by eight golds and one silver.
As for reaching the target set by his grandchildren, he said "I just hope I live long enough to do it".
