(Reuters) - LPGA rookie Jang Ha-na took advantage of a late wobble by world number one Lydia Ko to grab a two-shot lead after the second round of the season-ending CME Group Tour Championship in Naples, Florida on Friday.
South Korean Jang, hunting her first title on the U.S. circuit after ending up second three times this year, birdied four of her first six holes before finishing birdie-birdie for a seven-under-par 65 in the $2 million (£1.32 million) event at Tiburon Golf Club.
That left Jang at 10-under 134, two ahead of New Zealand teenager Ko who carded a 67 that was highlighted by eight birdies but damaged by a double-bogey at the par-four 15th and a bogey at the par-three 16th.