[1] Lambert was a top amateur in Queensland, competing alongside Karrie Webb and Rachel Hetherington.

When attempting to win for the third successive year, she was beaten in the final by home player Lynn Brooky.

[2] She represented Australia at the 1992 Espirito Santo Trophy together with Ericka Jayatilaka and Joanne Mills, finishing 7th.

She was runner-up at the 1996 WPGA Championship of Europe at Gleneagles in Scotland, one stroke behind Tina Fischer.

In 1997, she won her maiden international title, the Air France Madame Open, two strokes ahead of Alison Nicholas of England.