The Swedes, led by Christoffer Burmeister successfully repelled the Russian attack at Rautu Church and forced them back.

[1] In late July, Burmeister led his force which consisted of 820 levied peasants, 200 dragoons, and 150–200[2] cavalry in a relief expedition.

[1][3] On their way to Kexholm, the Swedes set up a fortified camp at Rautu (present-day Sosnovo), taking advantage of the church building to strengthen their positions.

The Russians managed to defend for four hours until they were eventually defeated and scattered, being forced to flee into a nearby forest for safety.

[1] The Swedish losses were as follows:[1][5] The Russian losses were as follows:[1][2][7][4] Anders Koskull, the governor of Viborg, regarding the participation of the levied peasants during the battle, wrote the following to Charles X Gustav:[8] "Uti denna träffning hafva våra finske bönder sig så friskt ocb redeligen anställt, att man deras beröm af officerarne med hugnad hafver förnummit"Rough translation: "In this engagement, our Finnish peasants have conducted themselves so freshly and righteously that they have received praise from the officers with pleasure"As a result of shortages of ammunition and in particular slow-match, Burmeister and his men would return to Viborg, and the Russians to their previous positions in the Karelian Isthmus.