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For most people, competing an Iron Man is a mammoth achievement. But 75-year-old Whangārei man Brian Barach has done about 15 of them.
And on Saturday he'll be lining up again in Ironman New Zealand on the shores of Lake Taupō.
The swim alone is 3.8 kilometres, the bike ride 180 kilometres and then to top it all off, a 42.2 kilometre run along the lakefront.
Brian will be doing the race with his daughter Polly, but says it was his wife who first got him competing.
Brian spoke to Charlie Dreaver.