Answer
Asashōryū won six official tournaments in 2005. He dominated the sumo scene that year, winning the first three tournaments (Hatsu Basho, Haru Basho, and Natsu Basho) and the last three tournaments (Nagoya Basho, Aki Basho, and Kyushu Basho). His impressive performance solidified his position as one of the greatest sumo wrestlers of all time.