According to "Heike Monogatari" (The tale of the Heike [Taira family]), Kagetoki fought the renowned battle of vanguard at the Uji-gawa River against Takatsuna SASAKI and won military fame.
『平家物語』によれば、この戦いで景季は佐々木高綱と有名な宇治川の先陣争いをして武名をあげている。