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.
Wakatakakage and Takanosho will be looking to challenge the grand champion.
If healthy, the lone yokozuna will be the man to beat, but Mitakeumi and Wakatakakage seek to challenge.
The 20-year-old won three of the first five tournaments to open the 2022 campaign.
The Fukushima native becomes the first new sekiwake in 86 years to claim the championship.
New ozeki Mitakeumi keeps pace along with sekiwake Wakatakakage and rank-and-filer Kotonowaka.
~~ Three newly promoted wrestlers will be in the spotlight as they seek to challenge lone yokozuna Terunofuji for the title at the Spring Grand Sumo...
With his third career title, the sekiwake will be considered for promotion to ozeki.
The Dewanoumi stable wrestler has a one-win lead over Terunofuji at the midway point.
The No. 3 maegashira knocks the lone grand champion out of the lead with a huge upset.
But as history has shown, unexpected challengers can emerge at any time, especially with several outstanding wrestlers coming up the ranks.