About Aoiyama Kōsuke
Aoiyama Kōsuke is a Japanese former professional sumo wrestler or rikishi from Elhovo, Bulgaria. He made his professional debut in 2009, reaching the top division two years later, debuting in the November 2011 tournament. Aoiyama has won four Fighting Spirit awards, one Technique award and one kinboshi for defeating a yokozuna. He was twice runner-up in a tournament. His highest rank was sekiwake. Aoiyama was one of the heaviest competitors in sumo, weighing around 200 kg for most tournaments. In March 2022, he obtained Japanese citizenship. In his professional debut as Aoiyama Kiyohito in the September 2009 tournament, he won the jonokuchi championship with a perfect 7–0 record. He subsequently changed his name to Aoiyama Kōsuke for his jonidan debut in the following November tournament, which he also won with a 7–0 record followed by a playoff win against the sole Kazakhstani wrestler Kazafuzan. This would be his only loss though, and his 6–1 record was enough to propel him into the makushita division in the following March tournament.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.