[9] On that day, Captain Francis Drummond (engaged to Admiral Brown's daughter Elisa) died on deck, firing his marooned ship's cannons instead of retreating.

Some Argentine commanders believed that the lack of manoeuvring of the Imperial vessels in shallow waters and the speed of their own ships could decide some engagements in their favour.

At two o'clock in the morning the Brazilians opened fire, making an effort to put the pursued Argentine ships between the line of Imperial brigs and the coast.

By 7 P.M., Admiral Pinto Guedes' squadron appeared, but of all its vessels only the Pirajá, led by João das Botas, and the Independencia ou Morte, due to their smaller size, could approach the enemy.

The Brazilian Navy's overwhelming superiority at sea had been reasserted in a way which neither William Brown's audacity or Ramsay's newly purchased frigates could seriously challenge".

[12] The war reached a standstill: the Argentine Army had greater control in the land operations, but lacked the means to expel the Brazilian Army from Colonia del Sacramento and Montevideo, the two largest cities of Uruguay (which would remain under Brazilian control throughout the whole conflict), and lacked larger ships to challenge the control of the river; at the same time, the losses sustained by the Brazilians during the previous battles discouraged them from extending the naval war into the interior rivers of Argentina, and the shallow waters discouraged the attempt of a direct attack against Buenos Aires.