Jan Ziolkowski is a centre back for Roma (Serie A), aged 21. Over the 2025/2026 season, Jan Ziolkowski's standout numbers are Clearances (97th percentile), Tackles Won (97th percentile), Duels Won (97th percentile) when measured against players in a comparable role across Europe's top five leagues.

The most statistically similar player is Cristian Romero  of Tottenham Hotspur in the Premier League, a 99.7% match, followed by Amadou Onana and Bernardo. These comparisons weigh 9 defensive metrics on a per-90 basis and rank every candidate by percentile-vector similarity, so a match reflects a shared statistical profile rather than raw totals.