Kevin Na drew a line in the sand, and ultimately that proved to be the best recipe for success at the Charles Schwab Challenge. Here's how things ended at Colonial, where Na won by four shots for his second win in less than a year:
Leaderboard: Kevin Na (-13), Tony Finau (-9), Andrew Putnam (-8), C.T. Pan (-8), Jonas Blixt (-7)
What it means: Na started the final round with a two-shot lead, and he estimated after the third round that he needed to reach 12 under to put the tournament away. That prediction proved prophetic, as Na walked up the final fairway at 12 under with a victory assured before adding a final birdie putt for a little extra style.