It was a solid performance for Tsuboi, who has struggled with results the past few seasons.
Kao Miura, one of the favorites entering the competition, struggled mightily and fell out of contention with a 20th-place showing in the men’s short program.
Uno skated beautifully to “Oboe Concerto” and surpassed his previous high short program mark of 105.90 at the Beijing Games.
Daisuke Takahashi and Mao Asada were the first two skaters to sweep both singles titles for Japan, doing so at the 2010 world championships.