Cao Cao routed Liu Bei to the east, captured his wives and children, and forced Guan Yu of Xiapi to surrender. (Records of the Three Kingdoms (Sanguozhi) 魏書 武帝紀 (卷01) 建安5년)
At Baima, Cao Cao sent Zhang Liao and Guan Yu ahead, beheaded Yan Liang, and lifted the siege of Baima. (Records of the Three Kingdoms (Sanguozhi) 魏書 武帝紀 (卷01) 建安5년)
South of Yanjin, with fewer than six hundred cavalry, he defeated Wen Chou's cavalry, beheaded Wen Chou, and greatly startled Yuan Shao's army. (Records of the Three Kingdoms (Sanguozhi) 魏書 武帝紀 (卷01) 建安5년)
Yuan Shao moved his camp forward again and again to face Guandu, building earthen hills and tunnels; Cao Cao's troops were at a disadvantage in open battle and had fewer than ten thousand men. (Records of the Three Kingdoms (Sanguozhi) 魏書 武帝紀 (卷01) 建安5년)
On Xu You's plan, Cao Cao led five thousand infantry and cavalry to attack Chunyu Qiong and others at night, killing them all and burning their grain. (Records of the Three Kingdoms (Sanguozhi) 魏書 武帝紀 (卷01) 建安5년)
Zhang He and Gao Lan surrendered, Yuan Shao's army collapsed, and Yuan Shao and Yuan Tan crossed the Yellow River and fled. (Records of the Three Kingdoms (Sanguozhi) 魏書 武帝紀 (卷01) 建安5년)
Sun Ce, planning a surprise attack on Xu during the Guandu campaign, was killed by a retainer of Xu Gong before setting out. (Records of the Three Kingdoms (Sanguozhi) 吳書 孫破虜討逆傳 (卷46) 建安5년)