(Reuters) - Cristie Kerr eagled the par-five 17th for a one-shot win at the season-ending CME Group Tour Championship in Florida on Sunday, while Lydia Ko held off Park In-bee and Lexi Thompson to claim the $1 million Race to the CME Globe jackpot.
Kerr claimed her 18th career LPGA title and a $500,000 check by rolling in a three-foot par putt at the 18th to complete a four-under-par 68 for a 17-under 271 total at the Tiburon course in Naples.
Rookie Jang Ha-na of South Korea posted a 69 for 272 to share second place with American Gerina Piller, who fired a 67.
World number one Ko was in a tight battle to hold on to her edge in the jackpot race, with South Korean Park missing a birdie putt at the 17th as did Thompson that would have put them out in front for that prize.
World number two Park shot a 69 for 276 and sixth place in the tournament to finish second in the race, while American Thompson returned a 68 for fourth place on 274.
For the 18-year-old Ko it was her second straight triumph in the race, but not before some tense moments.
"I think the hole is smaller than the ball today," said the South Korean-born New Zealander, who carded a final-round 72 for 11-under 277 and a tie for seventh.
Ko's birdie putt at the last lipped out and she did not learn she had won the jackpot until after she walked off the green and had a quiet, emotional moment.
"I'm happy that the season is over and I can relax now," said Ko, last year's Rookie of the Year. "It was kind of a tough day. I tried to stay patient all day. Every emotion went through me."
Ko secured Player of the Year honors, while Park narrowly edged her out for the Vare Trophy for the season's lowest scoring average.
(Reporting by Larry Fine in New York; Editing by Ken Ferris)