8:56 am today

New Zealand golfer Dame Lydia Ko.

Dame Lydia Ko could become the greatest money-winner in women's golf with a good result at this week's US Open in California.

Dame Lydia has official career earnings of US$21.8 million (NZ$36.8m), just US$700,000 behind Swedish legend Annika Sorenstam.

A top three finish at the Riviera Country Club would result in Ko surpassing Sorenstam's earnings which she achieved during a 16-year career that finished in 2008.