He currently plays for Polonia Bytom, wearing the number 30 shirt. He plays primarily as a Defender. He stands at 186cm tall and weighs 86kg. His preferred foot is Right. His current market value is estimated at 150K €.

His most recent move was a from Pogon Siedlce to Polonia Bytom on 2025-01-22.

Throughout the Poland Liga 2 2024-2025, Oskar Krzyzak featured in 13 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.