Jonzon added two birdies on the back nine at Leopard Creek for a bogey-free opening round. He shares the lead with Len Mattiace of the United States.
The greens were very receptive, and even though I wasnt driving that well today, it didnt matter what side of the pin you left the ball, Jonzon said. It all went right for me.
Mattiace had one bogey and eight birdies.
I dont think Ive ever played a round where Ive hit it close that many times, Mattiace said.
Mattiace missed out on the PGA Tour Qualifying School final, but played last week in Argentina.
I really challenged myself Mattiace said.