Micheletto Segato, fighting for the Tyrolean defenders, arriving from Giudicarie attacked the Venetian forces besieging with 400 men.

At Castel Beseno, Tyrolean commander Friedrich Kappler was informed of the situation by use of a system of optical signals.

The Venetian cavalry, under the direct command of Sanseverino and his lieutenant Guido de Rossi, stood to face the attack.

The retreating Venetian cavalry put pressure on their own infantry caught on the riverside, pushing them onto the floating bridge, which collapsed under the excessive weight, resulting in hundreds of deaths by drowning.

The battle was widely celebrated in Tyrol and Austria (Habsburg lands) and was a favourite of Maximilian I, but it had no immediate political or strategic consequences.