Opelousas – The Acadiana Master Horseman Booster Club will host its first Riders & Roux Cookoff and Fundraiser on Saturday, Oct. 17, from 9 a.m. to 4 p.m. at Yambilee Arena in Opelousas. The family-friendly event will feature blackpot cooking teams, local vendors, a live DJ, horses and equine education activities. Admission is $10, with children ages 12 and younger admitted free. Proceeds will sup…