The only two undefeated sumo wrestlers, Grand Champion Tochinishiki and Kagamisato, continued to keep their slates clean Saturday with victories over Annenyama and Odachi respectively on the seventh day of the current main summer tourney at the Asakusa Kuramae Kokugikan.
    The day's upsets occurred when Kotogahama downed Ozeki Ouchiyama and diminutive Tsurugamine overcame 350 pound Sekiwake Matsunobori.

    Results of other leading bouts:

Chiyonoyama	beat	Tamanoumi
Shinobuyama	beat	Mitsuneyama
Wakanohana	beat	Asashio
Tokitsuyama	beat	Hajimayama
Wakamaeda	beat	Wakabayama