Davis (73), a Brisbane-based Catholic teaching brother, has won 33 swimming gold medals at Masters Games over the past five months.
He won 13 gold medals at the Great Barrier Masters Games at Cairns in August, 10 at the Australian Masters Games in Geelong in October and 10 this week at the New Zealand Masters Games in Dunedin.
He did not swim in his youth and only started competitive swimming in Launceston in 1991.
He does not believe he has any natural ability as it took him nine years before he won his first Masters Games gold medal at Gladstone in 2000.
''I would put it down to persistence in training and the fact that I do butterfly,'' Davis said.
''As swimmers get older it is harder to do butterfly and I work very hard at my butterfly and it is to my advantage.''
He always wins his butterfly races and because of this skill performs well in the individual medley as well.
''There has to be a bit of luck,'' he said.
''It all depends who's there.''
He explains what it means to him to win so many gold medals.
''In 1995 at the Australian Masters National championships I won three silver medals,'' Davis said.
''The next year I trained my butt off in Sydney and was determined to turn the silver medals into gold.''
He was matched against Peter Gilmour, butterfly swimmer for Australia at the Olympics in 1956.
''Peter broke the world masters records in the 100m and 200m butterfly,'' Davis said.
''I told Peter that I had set my heart on winning that medal that you are wearing. He said I'd get my chance one day.''
There was a four-year wait until Davis won his first elusive gold medal in 2000.
''No. It's not boring in any shape or form to win 10 gold medals,'' Davis said.
''You work your heart out and don't win. When it eventually happens it's just wonderful.
''I said I was prepared to swim until I'm over 80 to win a Victorian gold medal. I now have over 100.''
He recognised the value of Masters Games sport when he competed in Queensland some years ago.
One swimmer got out of the water frustrated at his performance and thought he was hopeless.
''His coach told him: `George you've got to remember that you're on chemotherapy for your cancer','' Davis said.
''We have people swimming who are fighting illness but they do it to keep going. They continue to swim even though their heath is failing.''
This is the first time Davis has been to New Zealand and he wants to come back in two years.
''I've loved it,'' he said.
''Your harbour is magnificent and Moana Pool is marvellous.''
He is the meet convener for swimming at the Pan Pacific Masters Games on the Gold Coast. It is the biggest Masters Games in the world outside the World Masters Championships.
He now swims with the Miami Masters on the Gold Coast.
Davis is dedicated to his training and swims 3km at each of his six weekly training sessions.
