Hakuho spoiled sekiwake Toyonoshima's aspirations of a second straight yokozuna kill, keeping his undefeated record intact after the ninth day of the Spring Grand Sumo Tournament on Monday.
Hakuho, who is in the running for his 24th career title, improved to a 9-0 record with six days remaining at the 15-day meet.
Ozeki Kotoshogiku and rank-and-filer Okinoumi are the closest to reeling in the sole leader at 7-2.