Kiwi golfer Lydia Ko has described her 2017 season as an 'emotional roller coaster ride'.
The 20-year-old failed to add to her 14 career LPGA titles in 2017 having a down year for end high standards but still finished second in three events and had 11 top tens across the year.
She held the number one spot until midway through June before slipping down to world number nine at season's end.
The Olympic silver medallist last won on the LPGA Tour in July 2016.