Lydia Ko said Tuesday she cannot afford to become "too cocky" even though she is world number one and among the favourites at this week's Women's World Championship in Singapore.

Golf: Lydia Ko not taking Women's World Championship lightly

The Golfer loves home cooking and staying outside the Olympic Village will help her maintain the same lifestyle

World number 1 Ko will not stay at Olympic Village

Lydia Ko gathered six birdies in a testing breeze on the Highland Meadows course to join South Korean Kim Hyo-joo (68) at eight-under 134

World number one Ko puts US Open fade behind her to take Marathon co-lead

The 19-year-old has posted two wins and a playoff loss in her last three major starts

Ko leads by one shot at US Women's Open

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Golf: Lydia Ko not taking Women's World Championship lightly

World number 1 Ko will not stay at Olympic Village

World number one Ko puts US Open fade behind her to take Marathon co-lead

Ko leads by one shot at US Women's Open