At dawn, Brig-Gen Étienne MacDonald's brigade of Souham's division rushed and recaptured Tourcoing from Otto. Malbrancq's brigade Posted between Roncq and Blanc-four, just south of Roncq attacked Mouvaux from the north while Bonnaud applied pressure from the west. At first, Otto held firm on a line south of Tourcoing, but he was slowly driven back. At 11:30 am, the command of Abercromby, now isolated and under very heavy attack, nevertheless extricated itself and retreated from Mouvaux toward the southeast, Fox's Guards brigade distinguishing itself during the withdrawal. This ended the battle. The Duke of York, separated from his command, narrowly avoided capture and was obliged to wade a deep brook to escape. Souham immediately faced his tired troops about and prepared to attack Clerfayt. That general, realizing he was now alone, recrossed to the north bank of the Lys and retreated to the northeast.