Both armies were stuck, but Shingen's army was short on supplies due to the transportation party having been attacked, and faced a tough battle at Omiya-jo Castle that was located along the border between Kai Province and Suruga Province, while Ieyasu, who aimed to subdue Suruga, allied with Ujiyasu and came into conflict with Shingen.
両軍は睨み合いとなったが、輸送部隊を襲われたことにより物資が不足、甲駿国境に位置する大宮城での苦戦、さらに駿河征服を企む家康も氏康と同盟を結んで信玄と敵対した。