Bulldozer operator Kris Brown reconfigures the dirt floor for motorcycles and all-terrain-vehicles scheduled to race during Saturday's 2006 Arenacross at the Mississippi Horse Park. The popular event at the multiuse facility located adjacent to MSU's South Farm begins at 7:30 p.m. Tickets are $14 for adults; $8 for children ages 3-12. For more information, telephone (662) 325-9350.