In a highly entertaining bout that had the fans at Fukuoka Kokusai Center on the edge of their seats, both men attempted leg kicks, perhaps inspired by Hoshoryu's winning technique on the previous day.
But sekiwake Hoshoryu eventually got a double-handed grip on the belt before deploying a powerful overarm throw to send komusubi Tobizaru sprawling to the dirt surface.
Takayasu Outduels Kiribayama
In other major bouts, Takayasu had his hands full with determined komusubi Kiribayama.
After a forearm blast to the head by Takayasu, the two heavyweights exchanged a series of slaps and thrusts to the head and upper body.
Kiribayama (5-3) finally got a grip on the neck of Takayasu before the top maegashira broke free and used a beltless arm throw to send the Mongolian sprawling to the dirt surface.
Takayasu has never won the Emperor's Cup but has come close numerous times.
Ninth-ranked maegashira Abi overpowered Endo with his trademark arm thrusts to the neck to maintain his share of the lead at 7-1. No. 7 Endo dropped to 2-6.
No. 13 maegashira Oho improved to 7-1 when he used a series of powerful arm thrusts to send makuuchi division debutante Atamifuji out over the edge. No. 15 maegashira Atamifuji fell to 3-5.
Nishikifuji Notches 200th Career Win
It was the 200th career victory for Nishikifuji, who came into the November meet having put together two straight tournaments with records of 10-5.
"I'm really happy to beat the ozeki," said No. 4 maegashira Sadanoumi. "I just tried to get a good jump at the face-off. Using my speed, I thought my sumo was good. It's great to win in front of so many fans in Kyushu."
Mitakeumi Falls to 4-4
Top maegashira Kotonowaka hauled Mitakeumi down seconds after the face-off to pick up his fifth win against three losses.
With seven days left in the tournament, Mitakeumi needs six wins to reach the 10 he needs to regain ozeki status.
Wakatakakage has a habit of not doing that well in the first week of tournaments. At 5-3, he could still find himself in the thick of the title hunt if he goes on a run in the second week.
No. 3 maegashira Ura improved to 1-7 while No. 2 maegashira Ichinojo fell to 2-6.
Author: Jim Armstrong
The author is a longtime journalist who has covered sports in Japan for over 25 years. You can find his articles here.
New Year Basho Tournament Records