Bridget Grylls will take another step on a successful path for New Zealand female jockeys when she rides Excellantes for top trainer Rob Heathcote at Doomben on Saturday.

Grylls rode her first Brisbane winner on Watling for Heathcote on Wednesday but a win on Excellantes in the Madame Wu Handicap (1200m) would give her Australian career an even bigger boost.

Brisbane has been a happy-hunting ground for all Kiwis but it has been especially kind to New Zealand's pioneering women jockeys.

It started in 1979 when Linda Jones became the first woman in Australia to beat her male counterparts in a feature race aboard Pay The Purple in the Labour Day Cup.

Dianne Moseley then became the first female jockey to win a Group One race in Australia on Double You Em in the 1982 Doomben Cup.

In more recent times Rachel Mason, the first woman to ride four winners in Brisbane on a day, Maja Vance and Rosie Myers have ridden with great success in Queensland.

Grylls, 21, is about as close to New Zealand racing royalty as you can get but she has had a low-key start to her Brisbane visit.

She is the daughter of top jockey Gary Grylls and her brother Craig Grylls is also among New Zealand's top riders.

Her grandfather John Grylls is rated as one of the all-time greats of New Zealand's riding ranks.

Bridget Grylls went to university after leaving school and rode trackwork to keep fit.

But at 19 years old the lure of racing was too much and she got an apprenticeship with trainer Lisa Latta at Awapuni.

She rode her first winner when Princess Lincoln won at Wanganui in 2012 and hasn't looked back.

Grylls arrived in Brisbane unheralded last month to spend time with trainer Barry Lockwood at Eagle Farm.

She has gradually built up a following among Eagle Farm trainers who appreciate her willingness to ride work.

"I am enjoying my time here and I will see how things go. I have ridden 66 winners in New Zealand but still claim three kilos here," she said.

"Hopefully things will work out as I am starting to get a few good rides."

Heathcote is holidaying in Vietnam but left instructions to give Grylls good rides as a reward for her hard work on track mornings.