"She's my hero."
Nicolls describes her team as a humble bunch who would be embarrassed if they heard someone giving them praise.
"Viliami is indispensable and an incredible fighter," Nicolls said.
"He went up a belt from blue to a purple belt and two weeks after took out gold in his division."
Tyler ,who has been with the academy since he was three years old, was described as the most charming and most dedicated.
"I'm excited and nervous," Tyler said.
Hailey and Morgan echoed his sentiments and added they were looking forward to the adventure.
The adults of the team fly over to the states two weeks before the competition for a training camp that has them training three-times a day.
To get to the World Championships in Long Beach, California, each competitor must raise $5000 to cover all their expenses.
Barbecues, raffles and Givealittle pages are being used as some of the ways to fundraise.
"This is a massive opportunity," Nicolls said.
For more information visit the groups's Facebook page: Waikato Brazilian Jiu Jitsu Academy.