Complex sentence: He entered the final round in the last group, one stroke behind Kevin Na, and after bogeying the first hole, produced a near perfect round of golf, apart from a three putt bogey on the 17th to hold off the challengers.
Split into simpler sentences: He entered the final round in the last group, one stroke behind Kevin Na. After bogeying the first hole, he played a near perfect round of golf, except for a three-putt bogey on the 17th, to hold off the challengers.