On May 17, 2011 The NBL announced that a letter of agreement was signed and approved by their Board of Directors, to merge operations with the ABA. The merged organization would be controlled by ABA ownership, and would be called USABMX. After a month of wrangling, and negotiation between the parties, the final documents were signed on June 18, 2011. That day was the first time in more than 35 years that the sport of BMX Racing was run under a single sanctioning body in North America. The following week, the NBL Midwest National in Warsaw, Indiana was the first event to be run under the USABMX banner (though was still an NBL-branded event, as part of their 2011 national series). The 2011 NBL Grand National was the final NBL race of all-time, held September 3–4, 2011 and dubbed "The Grand Finale."