About ten thousand rebels proceeded from the Zaporizhian Sich towards the upper Dnieper territories overrunning the Polish forces stationed there.
The rebels captured and executed the Hetman of the registered Cossacks Hryhoriy Chorny for his pro-Polish stance and support of the Union of Brest.
After victory at Korsun-Shevchenkivskyi over the Polish army sent against them the rebel Cossacks controlled a large territory that included Korsun, Kaniv and other cities making their main base at Pereiaslav.
Fedorovych's military successes forced Koniecpolski to initiate negotiations with the Cossack leadership (the Starshyna) which concluded with the Treaty of Pereiaslav in 1630.
Fedorovych, disgruntled with this turn of events, tried to raise the Cossack masses to start a new uprising but the energy for such an undertaking was no longer forthcoming.