Chevron Championship: Ariya Jutanugarn duffs chip at final regulation hole before Mao Saigo wins chaotic five-way play-off

Chevron Championship ends in remarkable fashion as leader Ariya Jutanugarn fluffs chip at final regulation hole to enter five-way-play-off that is won by Mao Saigo; Ruoning Yin misses eagle putt to win trophy before she, Hyo-Joo Kim and Jutanugarn squander birdie chances to extend event