Grand champion Asashoryu overwhelmed komusubi Miyabiyama on Sunday to open the Summer Grand Sumo Tournament with a historic win.

Fighting in the final bout at Ryogoku Kokugikan, Asashoryu got a grip of Miyabiyama's belt and calmly lifted his opponent out for the win.

Mongolian Asashoryu became the first wrestler to win 31 straight bouts in the Heisei era, surpassing yokozuna Takanohana, who won 30 consecutive bouts 10 years ago.