Opening day of the FMF INDOOR MX WINTER Series started off in a big way with over 600 riders. Zach Osborne (Yamaha) mowed through the 40 rider fields of pro to win both the 250 and 450 classes. Joshua Thomas, Jim Neese, Blake Hovis, and Danny Smith followed Osborne in the 250 class. Robbie Horton, Jim Neese, Ryan Smith, and Tyler Bright followed up in the 450 class. Practice gets underway tomorrow at 12:00 noon for round #2.