IWGP Heavyweight Championship
IGF was a territory of the National Wrestling Alliance (NWA), thus the title was additionally recognized by the NWA. NJPW recognized the title as the , a championship that was merely represented by a previous (third) version of the IWGP Heavyweight Championship's title belt. The title also saw the involvement of Total Nonstop Action Wrestling (TNA), which also recognized it as the IWGP Heavyweight Championship and assisted in the title's retirement in 2008 when it was unified with NJPW's IWGP Heavyweight Championship.