北条氏康
Outnumbered 20,000 to 8,000, Satomi fell back when the Hōjō vanguard advanced. But this was a feint, and an attempt to draw his enemy into a trap. However, Hōjō Ujiyasu expected a trap of this sort, and had sent his son, Ujimasa, with a small force to attack the Satomi rear, surrounding, and later Ujiyasu defeated Yoshihiro.