The Russian army was as follows: The Polish–Lithuanian troops under Tver made up 12 regiments, and their main force was 5,000 horsemen of Aleksander Zborowski.
On July 23, in the early morning, Russian and Swedish troops broke into Polish fortifications and a fierce battle began.
And by the Divine Grace, and by the wise providence, and by the courage of the boyar and the voivode Prince Mikhail Vasilievich Skopin, we have beaten the Polish and Lithuanian people, and have taken their camps, and have besieged Tver.
[1]From the Polish side, Pastor Conrad Bussow mentioned this: Skopin and De la Gardie, having won, moved forward, crossed the Volga and occupied Tver; here they met with 5,000 horse-lancers, sent by Dmitry under the command of pan Zborovsky, fought with them and, defeated, fled for the Volga; but they soon became encouraged: the next day they started the battle again and with such courage struck the Poles that Zborovsky could not resist; covered in shame, having lost many soldiers, he retired to the Tushino camp.
[2]And the Swedes attributed all the merits to themselves: At the time when Dimitri was having so much fun, feasting and rejoicing in the camp near Moscow, the Swedish commander, Count Jacob De la Gardie, with the Russian leader, Mikhail Skopin, approached the city of Tver; they had a great battle with the Poles, and the Swedes again won, who defeated and put the Poles to flight.
At the end of the battle, the Russian commander Skopin threw himself on the neck to Count De la Gardie with tears in his eyes and thanked him that his uncle, the Grand Duke, and the entire Russian state would never be able to adequately thank him and the royal army, let alone pay for this important service.