O. Kubiak

In June 2026, reports mentioned Arka Gdynia's hope for a transfer fee exceeding one million euros, and Transfermarkt's estimated market value for the player was reportedly €1.5 million. Earlier, in April 2026, Slavia Prague reportedly submitted an official offer of approximately €1,000,000, including bonuses, which was rejected by Arka. At that time, his Transfermarkt value was reported to be €500,000.

Our valuation is driven by the completed June 2026 transfer of Oskar Kubiak to Champions League side Slavia Prague. The range is anchored by a reported rejected offer of €1,000,000 from Slavia in April 2026 and Arka Gdynia's public stance of demanding a club-record fee significantly higher than that. The player's strong 2025/2026 season performance and a reported market value of €1.5 million in June 2026 support an estimate at that level.