Forsyth County voters on Tuesday whittled the field for sheriff and set up a runoff later this month to decide the contest.Three-term incumbent Ted Paxton and Duane Piper, a longtime employee of the agency who resigned last fall to run for sheriff, will meet Aug. 21. Paxton received 13,093 votes, or 48 percent of the total in the Republican primary, while 7,529 votes, or 27 percent, went to Piper.Lauren McDonald III, the county’s current coroner, garnered 6,860 votes, or 25 percent.Paxton and Piper both said they’re looking forward to the extended campaign.“We feel confident and are right where we thought we were going to be at,” Paxton said of his campaign. “Obviously with three people in a race, it’s going to be hard for anybody to break out with 50 [percent plus one vote].“But now with it being head to head, we feel confident we will prevail.”Piper said all the hard work now comes down to the runoff.“My reaction is that it’s been a 10-month campaign and it’s down to three weeks now,” he said.