Jan Harustak is a 22-year-old professional football player from CZE. He currently plays for Mlada Boleslav, wearing the number 5 shirt. At the international level, he represents Czechia Republic U20. He plays primarily as a Defender. His preferred foot is Left. His current market value is estimated at 175K €.

His most recent move was a Loan from Mlada Boleslav to Banik Ostrava on 2027-06-29.

Throughout the Elite League U20 2025-2026, Jan Harustak featured in 4 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.