He currently plays for Banik Ostrava Women, wearing the number 16 shirt. At the international level, he represents Czechia Republic U17 Women. He plays primarily as a Defender.

Throughout the Czech Cambrinus Women's Liga 2025-2026, Karolina krupnikova featured in 11 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.