It was a case of months of training and hard work which had Patrick Dacaya stepping into the fight confident despite his fierce rival.

"He stopped his more experienced opponent with an elbow to the forehead cutting just above the eye and causing the fight to be stopped in the first 45 seconds of the first round," Decaya's coach David Flood said.

The first round victory has earned Decaya a place in Territory history as the first Australian to win the title.

He was one of three Katherine fighters competing in Darwin's Fury Fight Night on Saturday.

"He fought in a way that can only be described as clinical, he stuck to his game plan, and to be so successful with only four years under his belt was spectacular to watch," Flood said.

"A rematch is on the cards sometime next year."

St Joseph's Catholic College student, Grace Isaac, stunned the crowd again after her first big win in June, as she fought three "hard" rounds only to be stopped by the ref.

"Grace Isaac fought her best fight so far," Flood said, "up against a very strong opponent from Perth she showed great skill and determination and pushed her opponent to the limited."

Fighting his last fight as part of the Blue Eagle crew, Sam Chapman might not have defeated his opponent but he fought with courage and never took a backward step, Flood said.

"One hell of a night. Sam Chapman fought three really hard rounds and gave 100 per cent, I am very proud.

"2019 has been a very big year and next year looks like it will be even bigger."

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