Most leading ranking grapplers, performing to form, copped their matches on the fourth day of the Summer Grand Sumo Tournament at the Kokugikan at Kuramae, Tokyo. In the upset of the day, Wakanohana dropped his bout to Futatsuryu.

Results of main events on Tuesday:
Shinobuyama beat Matsunobori
Ouchiyama beat Naruyama
Futatsuryu beat Wakanohana
Mitsuneyama beat Futaseyama
Tochinishiki beat Wakabayama
Kagamisato beat Shimizugawa
Chiyonoyama beat Tamanoumi.