Harumafuji Kōhei, Mongolian sumo wrestler, the 70th Yokozuna

Harumafuji Kōhei , previously known as Ama Kōhei , is a Mongolian former professional sumo wrestler. He was the sport's 70th yokozuna from 2012 to 2017, making him the third Mongolian and fifth overall non-Japanese wrestler to attain sumo's highest rank.

Makuuchi (幕内), or makunouchi (幕の内), is the top division of the six divisions of professional sumo. Its size is fixed at 42 wrestlers (rikishi), ordered into five ranks according to their ability as defined by their performance in previous tournaments.