But her two - over 39 on the back nine allowed Jutanugarn and Lee to get back in the mix .
Ko shot a brilliant 30 on the first nine hole of the final round and built up a four - shot lead .
Her two - over 39 on the back nine allowed Jutanugarn and Lee to get back in the mix .
Ko shot a brilliant 30 on the first nine hole of the final round and built up a four - shot lead .