With 337 matches played, Koopmans is an experienced Age of Empires II player. The flank position is where Koopmans thrives, winning 47.2% of 72 games. Playing RM Team, Koopmans achieves a 39.5% win rate across 43 matches.

A German player, Koopmans is active in ranked random map team with a 97.0% pick rate for Britons. At an ELO of 1734 in RM Team, Koopmans holds 41.5% with Britons and 53.8% on Arena.