He is described as 'a small man' in "Gukansho," although such a description would be based on his father Tameyoshi's humble words, and there is no explicit article to describe his performance in battle.
『愚管抄』で「小男」とされるのは、父為義の言葉であるから謙遜としても、具体的な活躍の場面は残されていない。