Rank-and-filer Hokutofuji grabbed the outright lead Friday at the Nagoya Grand Sumo Tournament after joint overnight leader Nishikigi incurred a second straight loss at the hands of 19-year-old rookie sensation Hakuoho.Sekiwake Hoshoryu, meanwhile, stayed in the title race and maintained his bid for ozeki promotion by defeating Mongolian compatriot Kirishima, the only current holder of sumo's second-highest rank competing at the 15-day meet.No. 9 maegashira Hokutofuji ensured his name stayed on the top rung of the leaderboard on Day 13 at Dolphins Arena by forcing out No. 16 Endo and improv…READ FULL ARTICLE