The Toyotomi side was a jumble of army forces and unable to have close contacts; Mototsugu GOTO troop of 2,800 soldiers advanced to Komatsuyama in its single troop, which was given a concentrated attack by troops of more than 20,000 soldiers of Masamune DATE, Katsunari MIZUNO and others and the troop fought hard only to be destroyed and Mototsugu was killed.
寄せ集めの軍勢である豊臣方は緊密な連絡を取ることができず、後藤基次隊2,800は単独で小松山に進出してしまい、伊達政宗､水野勝成ら2万以上の敵勢に集中攻撃を受け、奮戦するも壊滅、基次は討死した。