Loading view. All qualifiers must attend two RHAA-sanctioned shows to be eligible to compete at the RHAA National Finals. There were no results found. There were no results found. Mashburn Event Center Events Venues Mashburn Event Center 1100 7th Street Childress, TX 79201 Get Directions Events at this venue Today Upcoming Upcoming Select date. Previous Events Today Next Events Subscribe to calendar Google Calendar iCalendar Outlook 365 Outlook Live Export .ics file Export Outlook .ics file