Since women’s motocross has been contested at this ultimate level, nobody has been able to match the talented teenager from South Auckland. She finished runner-up in the inaugural women’s World Cup in 2005 and then stormed to the top of the podium in winning the title in 2006 and again last season.

She’s once more the overwhelming favourite to win and the Yamaha rider showed just why she’s the world No.1 when she dominated the women’s class racing at the Auckland Motocross Championships on Sunday, winning all three races from fellow world championship hopeful Nikki Scott (Palmerston North, Kawasaki).

So the tears welling up in Prumm’s eyes at the end of that day were hard to fathom.

“I’m so frustrated,” she said. “I know I can do better.”

It wasn’t her dominance over Scott that was foremost in her mind but rather her form against the cream of New Zealand’s men -- when she also raced her Yamaha YZ250F in the testosterone-fuelled 250cc class -- that had so upset her.

With a national ranking of No.12 in the men’s class, Prumm said she was disappointed at finishing only 15th in the 29-rider men’s field. But there are plenty of top men – at least 14 of them -- who’d have been happy to have her results.

“I should have been higher up the (men’s) field,” she said matter-of-factly.

If Prumm is so driven and so hard on herself to succeed, you can imagine what she’s going to do to the elite of the women’s motocross world when she kicks off her world championship campaign in Bulgaria on May 11.

“I’ve got six weeks now to get ready and I don’t know how hard it will be this year until I get over there. I’ve got a photo shoot to do for Yamaha in Italy and then I’ll be doing testing on the bike.

“I really appreciate all the support I’ve been getting from New Zealand and I hope I can again fly the Silver Fern high in Europe.”

The five-round 2008 women’s world championships kick off in Bulgaria on May 11, with rounds to follow in Italy (May 18), France (June 15), Germany (June 29) and the Netherlands (September 7).