Wi regained the lead when he sank a 10 - foot birdie putt on the 16th and finished off the victory in style when he holed a 20 - footer on the final hole .
Wi led for most of the weekend .
Wi , who led for most of the weekend , regained the lead when he sank a 10 - foot birdie putt on the 16th and finished off the victory in style when he holed a 20 - footer on the final hole .