Wesselingh said: "It was unbelievable. It's been a dream week. It was a bit of a struggle today and difficult with a gusty wind, but I made two birdies in the first two holes.
"I then threw them away at the fourth and fifth - it's a very difficult stretch - but I parred my way round before birdieing the 16th and 18th.
"I had a massive break on the 15th when I pulled my tee shot miles left, but it hit the cart path two or three times and ended up just 50 yards from the green, so I was able to just chip and two-putt there.
"I hit a great tee shot on the 16th and a pitching wedge to ten feet. On the last I knew Mr Lu would go for the green in two, so I did as well. I found the bunker but had a good lie. I had a putt from four feet to win, and I could hardly feel the putter I was so nervous.
"It's great to be back on top of the Order of Merit with a nice lead. It's going to be between me and Steen to win. I love to play in Mauritius and it's going to be a very exciting event. Whatever happens it's been a phenomenal year and if anyone had told me I'd win three times and be at the top of the Order or Merit, I would have bitten their hand off."