Gylippus led out his heavy infantry further from the fortifications than on the former occasion, and so joined battle; posting his horse and darters upon the flank of the Athenians in the open space, where the works of the two walls terminated.

During the engagement the cavalry attacked and routed the left wing of the Athenians, which was opposed to them; and the rest of the Athenian army was in consequence defeated by the Syracusans and driven headlong within their lines.

The night following the Syracusans carried their wall up to the Athenian works and passed them, thus putting it out of their power any longer to stop them, and depriving them, even if victorious in the field, of all chance of investing the city for the future.

After this the remaining twelve vessels of the Corinthians, Ambraciots, and Leucadians sailed into the harbor under the command of Erasinides, a Corinthian, having eluded the Athenian ships on guard, and helped the Syracusans in completing the remainder of the cross wall.