The Baulkham Hills muscle machine slammed his opponent, the top-ranked Ashwin Balrak of Holland, at the World Boxing Council Muay Thai world titles in Jamaica last month.

McKinnon, 31, was ranked seventh against his opponent.

``It was a tough fight and it went the distance,'' McKinnon said. ``I beat him in every round but he really made me work for it.''

The title was the sweetest for the champ as he now holds all four world titles in all federations of the sport.

``There are four different federations to claim world titles and you're the ultimate world champion when you have all of them it's the undisputed world title.''

Pumped with confidence and determination before the fight, McKinnon said he'd never felt more prepared.

``I had the best preparation and I peaked at the right time. It all came together. I was on fire and a step ahead. It was fantastic.''

McKinnon had a week's rest before returning to training six days a week.