Thompson overcomes penalty, can't overcome Ryu
Ryu made a short birdie putt on the first playoff hole to win at Mission Hills Country Club.
Most of the drama, however, came long before the playoff.
Thompson was leading the tournament and had just completed the 12th hole when she was informed by a rules official that a TV viewer had emailed officials and asked them to look at the video of Thompson marking her ball on the 17th hole on Saturday. Officials determined that she replaced it in a slightly different position relative to her coin than it had originally been in.
"Is this a joke?" Thompson asked.
Source : The Golf Channel