Col. Martinez' brigade began to move at 13:00 hrs, but Col. Amunategui's brigade didn't advance until 14:00 hrs. Meanwhile, Gen. Baquedano ordered the cavalry to advance over Barranco. Lagos's division continued evolving on the vanguard setting its 2nd Brigade on the left flank.
At 13:00 hours, Col. Martinez' brigade began moving forward, while Col. Amunategui's brigade didn't advance until 14:00 hours. Gen. Baquedano ordered the cavalry to move over Barranco. Lagos's division continued advancing in the vanguard, placing its 2nd Brigade on the left flank.