The Darfield dog had his 89th win to take the title after going into the race as the joint record holder with 88-race winner Hifi Allegro.
Wheelchair Norm did not put his supporters through many anxious moments as they watched eagerly to see if he would become the new king of New Zealand greyhound racing.
The chaser ran quickly to the lead from the starting traps in yesterday's 295m race before sprinting away from his opposition.
Trainer John McInerney, who is New Zealand's most winning greyhound trainer, was jubilant after yesterday's win, as he had eyed breaking the national record with Wheelchair Norm for some time.
''Its unbelievable. We were aiming for the record.''
McInerney has trained a long line-up of fast dogs and Wheelchair Norm has worked his way to the top of the list.
''I have not had a dog that has won that many and at his age, most of them would have been retired by now,'' he said.
At 5 years old, the greyhound is in the twilight of his career and his racing days will soon be over.
The greyhound began his racing career in his native Australia, where the best he could manage was a third placing in six starts.
His victory came in his 188th race start and it took his winnings bank past $160,000.
Wheelchair Norm is raced by Mark Bell, of Sydney, and he will soon return to his country of origin to enjoy retirement as a pet.
But before then he has dates in the hope he can produce offspring as fast as he is.
''He will serve a few bitches here and then go back to Australia to be a pet,'' McInerney said.
McInerney credited the Forbury Park greyhound racing track as a vital component in his greyhound's epic winning run.
Thirty-seven of the dog's wins have come on the Dunedin track, which McInerney rates as one of the best surfaces in the country.
''It is because they have got such a good track here,'' he said.
''They just do a great job here; the whole thing is fantastic.''
