The Peruvians were utterly routed.

When Don Nicholas saw the battle going against him, he gallantly mounted his charger and rode to the front; but it was too late.

He turned in despair and fled to the mountains followed by a few of his immediate troops.
One of the leading causes of Peru's defeat, was the fact that her soldiers were armed with two makes of rifles of different caliber.
The cartridges became mixed and hundreds of soldiers were seen to throw down their guns and flee because their shells would not fit.
The ammunition, too, was strapped on mules that scampered away out of reach after the first fire.
Paul with hundreds of others, fled to Lima.

The city had been taken possession of by a mob of drunken sailors and soldiers, who went about in large bodies, robbing and killing indiscriminately.

The streets were strewn with the dead.