Some warriors were sent by Ujiyasu to sneak past the Uesugi siege lines to inform the garrison of the relief's arrival.

Though still strongly outnumbered, ninja spies informed the Hōjō forces that the attackers, Ashikaga Haruuji in particular, had relaxed their vigilance due to their overconfidence in victory.

Going against battlefield custom, the samurai were ordered to leave behind any heavy armor, which would slow them down and perhaps reveal their position, and to not bother taking the heads of their defeated enemies.

This would deny the warriors much honor, as their triumphs would not be known or recorded, but the intense loyalty of the Hōjō samurai caused them to follow these orders.

This defeat for the Uesugi would lead to the near-extinction of the family, and with Tomosada's death, the Ōgigayatsu branch came to an end.