Lysymacus (army commanded by Steve as Mike is interstate) was deployed after seeing Antipater's deployment. He placed his hoplite division on the far flank, his phalanx/light infantry div in the centre and his two cavalry divs on his left.
Lysimucus' army was outnumbered by 56 points, but Steve made a real battle out of it. His rapid advance denied the enemy the advantage of the river & his superior missile power forced his enemy to attack. The battle probably turned on Antipater's order to Craterus to move his cavalry from the left flank to plug the hole in the centre being blessed with good command dice where it really mattered.