With the onset of winter, Mithridates sought to take advantage of a Roman feint against one of his outposts. He sent his sick, his wounded, and his cavalry east into Bithynia. In the middle of a snowstorm, Lucullus met these forces with ten cohorts along the banks of the Rhyndacus. Plutarch and Appian record 15,000 men and 6,000 horses as being captured during the battle.
Subsequently, Mithridates completely abandoned his position, sailing north while his army marched overland. Lucullus again routed them at the confluence of the Aesepus and Granicus Rivers.