On 17 August 2021, Konontšuk signed a one-year contract with his hometown team Pärnu Sadam.
[1] In the 2021–22 KML season, he helped his team to their first Estonian League championship.
On 13 July 2022, Konontšuk signed a one-year deal with an option for one more season with BC Kalev.
[2] With Kalev, he reached FIBA Europe Cup play-offs and was the leader in efficiency during the first leg of quarter-finals.
[4] Konontšuk made his debut for the Estonian national team on 11 November 2022, in a 2023 FIBA Basketball World Cup qualifier against Sweden.