That was how she took out the under-16 girls division at Rainbow Beach on Saturday and Sunday in the Mid-North Coast Girls Surf Classic.

While she gave up to four years worth of experience to the rest of the field in the challenging three-foot swell, it was what happened between her ears that proved most valuable.

"I didn't really think about being the youngest, because on tour you can be versing 40-year-olds when you're 18 so it's really not the age, it's more the ability," she said.

"I think I read the waves pretty well, but I didn't get stressed out because if you get stressed out then you obviously won't surf to your best.

"You have to stay calm and have fun."

Surfing blood runs in the Enfield family's veins with older brother Kayle consistently performing well at junior competitions around the country.

Younger sister Avalon is improving at every event.

Mum Loren took out the over-35 shortboard division while oldest sister Tahli also is handy on a surfboard - just rarely in competitive conditions.

But it was 12-year-old Imojen that admitted she enjoyed the challenge of testing herself against some of the best girl surfers on the Mid-North Coast.

"It was a nice local comp so I was happy with how I went, but cos I've been surfing for a long time I have a fair bit of experience in surfing competitions and I guess I get the idea of what to do," she said.

"There's always good competition (at the Mid North Coast Girls Surf Classic) but I guess I did surprise myself, but there was always the chance I was going to go well."

Enfield said she was potentially heading to Western Australia at the end of the year to compete "if the dates match up", otherwise she was looking forward to the regional titles in 2020.