Manuel O'Doyle and other Liberal officers surrendered, and were executed by firing squad the next day.

Zumalacárregui took advantage of his knowledge of the terrain to trick his enemy, luring the Liberals to places more suited to the guerrilla tactics of the Carlists than the maneuvers of the Isabeline regulars.

The Zadorra River, coming from the East, runs close to the range of San Adrián.

At the end of this distance of 12 kilometers rises the height of Quilchano, to which reach from the East the hills of Dallo, thus cutting the plan in two.

The Second Battalion of Carabineers and a squadron of cavalry remained at the bottom of the valley, forming the Isabeline right flank.

The Isabeline formation was defensively arranged, without a center, contrary to its goal of advancing towards Arrieta.

Osma believed that Zumalacárregui, victorious after the Battle of Alegría de Alava, would attack the Liberals, advancing through the depression.

But the Isabelines on the hilltops were not able to withstand the attack of the Carlist First and Third Battalions of Navarre, and abandoned their positions, descending towards the bridge.

"Disregarding the enemy’s fire, the Carlists advanced, and the guides [Guías de Navarra] having passed a bridge at the distance of half a musket-shot, the Liberals' left was turned.

"[2] The right flank also began to break formation and scatter, escaping out of the depression, and suffering casualties inflicted by the Carlists.

The Carlists cleared the hill, and when the battle was over, a pursuit began, and along the royal road, the Liberals fled in complete disorder and were pursued to the very gates of Vitoria-Gasteiz.

Fog descended upon the town and at midnight, with bayonets fixed, killed the few Carlists who had attempted to stop their escape.

The morale of the Carlists was very high, and they decided to fight the Liberal troops in a formal battle (rather than with guerrilla tactics).