By Brian Wacker, PGATOUR.COM

HILTON HEAD ISLAND, S.C. -- Colt Knost trails leader Carl Pettersson by just a stroke entering the final round here at Harbour Town, and he’s at that point through a little bit of smoke and mirrors.

Coming into the week, Knost ranked 129th on the PGA TOUR in scrambling. This week? He’s fourth in the field, converting 15 of 19 opportunities for par or better. But he’s also rolled the ball well, leading the field in strokes gained-putting at 7.8 strokes gained on the field.

The biggest difference on the greens for Knost? He’s 14-for-16 in the 4-8 foot range -- much improved over his season average of 68 percent, which ranks 71st on TOUR.

Here are more numbers on Knost, who is looking for his first career win.

Colt Knost - This Week vs The Field