Over time, Firmin den Bokser has accumulated 108 matches in Age of Empires II. The map Black Forest suits Firmin den Bokser well: 48.2% win rate over 56 games. No ranked matches for Firmin den Bokser, yet they win 44.0% when playing flank.

A German player, Firmin den Bokser is active in unranked with a 16.7% pick rate for Britons.