Yokozuna Harumafuji suffered a shock second defeat at the hands of Toyonoshima Friday while fellow yokozuna Hakuho and Kakuryu both came through unscathed on the sixth day of the Summer Grand Sumo Tournament.

Hakuho improved to 6-0. Yokozuna debutant Kakuryu is one off the pace along with ozeki Kisenosato and rank-and-filers Ikioi and Kitataiki as the 15-day meet winds down the first week in Tokyo.

Harumafuji appeared to have his match won when he jolted Toyonoshima (3-3) back near the ridge, but the yokozuna stepped too far inside with his right leg and was immediately put on the back foot as the former sekiwake came lunging forward for a force-out.