Ozeki Takakeisho had his hands full but came out on top on Day 8. Kotoshoho is the other wrestler with seven wins in the 15-day tournament.
No. 2 maegashira Ichinojo beat Ura in an earlier bout to go one better than the lone grand champion.
The grand champion was halted mid-bout, then came back to beat Wakamotoharu in a highly unusual display of sumo.