. Both sides claim the outcome of the battle as their own victory. They agree only in that four Swedish
frigates, the 34-gun
frigate Stor Phoenix, the 30-gun
Vainqueur, the 22-gun
Kiskin and the 18-gun
Danska Örn were captured by the Russians. No significant naval battles took place between the Russian and Swedish navies after this one until Sweden's defeat in the war was sealed by the
Treaty of Nystad.
Russian accounts The Swedes lost 103 killed and 407 captured. The Russians had 82 killed and 236 wounded. 42 galleys were damaged, and galley "Wesfish" was abandoned and burnt after the battle. The Battle of Grengam demonstrated the skillful use of the rowing fleet in the
skerries environment and efficient reconnaissance and selection of the combat site, as well as perfect timing for the attack from different directions. The victory at Grengam allowed the Russians to consolidate in the archipelago, which was very important for carrying out operations against Swedish shipping in the area.
Swedish accounts Four Swedish frigates ran aground and were captured by the Russian Navy. 43 out of 61 Russian
galleys, were either sunk by the Swedish force or burnt and abandoned after the battle. The Swedish Vice Admiral Carl Georg Siöblad was initially criticised after the battle, but when the scope of the Russian losses were discovered he was praised. Russia celebrated the battle as a victory, but their fleet was unable to launch effective operations until the end of the war in 1721. ==Commemoration==