NISHINOMIYA, Mar. 27 - A big upset marked the sixth day of the Kansai main professional sumo tourney, when Haguroyama, "yokozuna" and captain of the West team, went down before the promising Chiyonoyama in the last bout of the day at the specially constructed ring here today.
    Maedayama, "ozeki" of the East team, was again defeated by the tricky Kashiwado.
    In the interteam competition, the West team outpointed the East team by 11 to 8 on that day, thereby increasing its lead to 10 points, 60 to 50.