"I'll have to tie her down and help get her ready for Las Vegas now, there's only four weeks left before she flies out."
Dixon said she knew she was slightly underdone for the nationals in Auckland last week, but was confident she would be ready for Olympia.
Dixon has entered the open short and over-40 women's classes in Los Vegas.
"I won the 40+ in Dubai and came second in the open short, but I'm not sure what to expect in Las Vegas - I don't know how strong the competition will be," Dixon said.
"I had a day off yesterday coming back from Auckland but it's straight back to the gym this afternoon. I'm confident I'll be ready in time. I have a bit of work to do - cardio mainly."
Wanganui's Maureen Thomas (Club Fitness) had also been selected for the Las Vegas Olympia, but had decided not to go. She came second in the senior figure 50+ in Auckland at the weekend.
"I was very pleased with that. I've had a very consistent year with podium finishes in four competitions leading up to the nationals," Thomas said.
"I got selected for three international events this year - the Nabba in India in June, which was cancelled, the Nabba in the Philippines, which I'm not going to and the Inba in Las Vegas which I'm also not going to. I will stay in training for the Nabba in North Harbour in two weeks time," she said.
Former Wanganui club rugby standout Mundson Ah Chong was the only other athlete from the River City to podium finish on Sunday, with a third in the novice athletic tall section.
Sasha Crafar finished fifth in the novice figure short and in the senior figure 40+ women Audrey O'Keefe finished sixth.