O. Kubiak

The most recent valuation is a reported Transfermarkt value of €1.5 million in September 2026. This followed his completed transfer from Arka Gdynia to Slavia Praha in July 2026 for a fee of €1.0 million. Prior to the move, in April 2026, reports indicated that an initial offer from Slavia Prague of approximately €1.0 million, including bonuses, was rejected by Arka, who were reportedly seeking a fee exceeding that amount. At that time, his Transfermarkt value was listed as €500,000.

Our valuation for Oskar Kubiak is anchored by his recent July 2026 transfer from Arka Gdynia to Slavia Prague for a reported €1.0 million. The range reflects his subsequent development at a Champions League club, the strong public backing from his coach who blocked a loan move, and his updated market valuation of €1.5 million, suggesting his value has appreciated since the transfer.