Ozeki Hoshoryu overpowered rank-and-file opponent Hiradoumi to finish on top in a one-day sumo tournament Sunday at Tokyo's Ryogoku Kokugikan.
The 24-year-old Mongolian star dispatched opponents including former ozeki Takayasu and former sekiwake Abi before toppling No. 8 maegashira Hiradoumi with an overarm throw in the final of the 48th Japan Grand Sumo Tournament.
Lone yokozuna Terunofuji and newly promoted ozeki Kotonowaka were also in the field of around 40 top-division wrestlers contesting the meet, which does not impact rankings for the six 15-day grand tournaments held annually.
Hoshoryu's championship-winning performance followed a runner-up finish in last year's edition.
"Last year I was one win short, but I definitely felt like I was going to win it this year," Hoshoryu said.
Terunofuji, coming off his victory at the New Year Grand Sumo Tournament in January, was eliminated in his opening bout against No. 9 Meisei.