The teenager's winning cheque was US$300,000 which bumps her earnings to US$1.8 million this year and her career winnings above US $6.5 million in her short career.
Ko interacted with the rowdy frivolity on the par three 17th when players wear dress up masks, but her concentration slipped on the last when she tugged her six iron into the water on the par 5 finishing hole. She did well to salvage a bogey after her recovery shot went long.
"I think I was a little bit aggressive," she said about her shot into the water.
"It was either me needing to hit three wood to get over the water or lay up short of the hazard but I think it was 'hey no I'm going to hit six'."
Ko was confident about reaching the green with her six iron but pulled it a touch from a draw lie and dunked it in the water.
"It's not the greatest ending to finish with a six but I guess it covers up for how well I played earlier today. I hit the ball really well in the front nine and I think that definitely helped," she said.
Normally Ko brushes away high praise about her feats but the pride in her work throughout the tournament shone in her conversation. She played strongly in all three rounds and been especially content with her work.
"It's not the fanciest finish me finishing with a six but I just think about it as bogeying another hole."
Now she heads for a week's break from tournament play before heading for the US Open starting on July 7 in California.
"This gives me confidence," she said of her latest win, "and I am excited about a week off. This last stretch of three weeks I came really close in Seattle and then I ground my way through last week.
"The US Open is coming up and I am super-excited about CordeValle. I think it is a great course and hopefully a lot of fans come out to support us."
