TOKYO — Mongolian grand champion Hakuho added another win Friday, maintaining his sole lead and moving a step closer to a tournament victory at the Autumn Grand Sumo Tournament.

In the day's final bout at Ryogoku Kokugikan, Hakuho gripped ozeki Kaio's belt from both sides and bulldozed him over the straw ridge for a 12-1 record, with only two days left in the 15-day tournament. Kaio suffered his fifth defeat against eight wins.

Hakuho, who won the title at the Nagoya tournament in July, is also bidding for his eighth Emperor's Cup.

In other major bouts, Mongolian sekiwake Ama pushed out Kotoshogiku after surviving the top maegashira's attempted throw. Ama improved to 11-2 to stay on the heels of Hakuho, while Kotoshogiku slipped to 5-8.

Ozeki Chiyotaikai slammed No. 5 maegashira Kakuryu on the back, sending him to the dirt surface on all fours. Chiyotaikai improved his record to 8-5, while Kakuryu fell to 6-7.

Estonian komusubi Baruto gave a powerful hand thrusts into Aminishiki's neck, sending him out of the straw ridge, improving to 6-7. The No. 4 maegashira slipped to 6-7.

Bulgarian ozeki Kotooshu chased Goeido toward the straw ridge with a series of frontal thrusts to push him out. Kotooshu rose to 6-7, while the No. 5 maegashira slumped to 9-4.

Ozeki Kotomitsuki threw all his weight into Toyonoshima to drive him out, with the force also catapulting him out of the ring. Kotomitsuki rose to 11-2, while Toyonoshima fell to 5-8.