Sempronius was caught in the trap, and all his army, except one division of 10,000, was cut to pieces.

The survivors took refuge in Placentia and Cremona, where they spent the winter.

Sempronius himself escaped to Rome.
The result of TREBIA was the insurrection of all the Celtic tribes in the valley of the Po, who increased Hannibal's army by 60,000 infantry and 4,000 cavalry.

While the Carthaginian was wintering near Placentia, the Romans stationed troops to guard the two highways leading north from Rome and ending at Arretium and Ariminum, The Consuls for this year were GAIUS FLAMINIUS and GNAEUS SERVILIUS.

The former occupied Arretium, the latter Ariminum.