Complex sentence: He then successfully defended the Lexus Peru Open in October, in doing so Etulain became the first golfer to successfully defend a tournament on the PGA Tour Latinoamérica and the first three-time winner on the tour.
Split into simpler sentences: He then successfully defended the Lexus Peru Open in October. In doing so Etulain became the first golfer to successfully defend a tournament on PGA Tour Latinoamérica and the first three-time winner on the tour.