their prize money, top division yūshō winners receive the . It was first donated by Hirohito, an avid sumo fan, in 1925 as the . It was changed to its current name upon Hirohito's accession to the emperor's throne in December 1926. There is also a banner with the names of past winners. Both are presented by the chairman of the Sumo Association. There are also many prizes and trophies given by prefectural and foreign governments, as well as businesses. For several years the French President Jacques Chirac, a noted sumo fan, donated a trophy. The wrestler is given replicas of all the trophies to keep. In July 2010, and again in May 2011, neither the Emperor's Cup nor any other prizes were handed out, because of controversies over illegal betting and match-fixing respectively. However, in both cases the yūshō were still official and counted on the wrestlers' records. An unbeaten 15-0 score is known as zenshō-yūshō and is fairly rare; most yūshō winning scores are either 14-1 or 13-2. The wrestler who has won the most top division yūshō is Hakuhō with 45, followed by Taihō with 32, and Chiyonofuji with 31. Futabayama won 12 yūshō in an era when only two tournaments were held each year. The first foreign wrestler to win the makuuchi division yūshō was the Hawaiian born Takamiyama Daigorō in June 1972. There were no others until Konishiki Yasokichi won his first championship in November 1989. However, due to the unprecedented dominance of foreign wrestlers in recent years, led by the Mongolian yokozuna Asashōryū and Hakuhō, there were no Japanese-born winners between Tochiazuma Daisuke in January 2006 and Kotoshōgiku in January 2016. This drought of Japanese Yusho winners was broken by Kisenosato, who won in January 2017, securing his Yokozuna promotion, and again in March of the same year. The past few years have also brought multiple other Japanese champions. Playoffs Any playoffs are indicated on individual wrestler articles' tournament records as one P for every other playoff challenger the wrestler faced in that tournament. Since 1947 a playoff system (kettei-sen) has been in place to determine the winner of the yūshō if two or more wrestlers finish with an identical score. Until then, the yūshō would go to whoever was the higher in rank, as it was presumed they had faced better quality opposition, but this caused controversy in 1928, when ōzeki Hitachiiwa was