Koos brings Dutch representation to Age of Empires II. Koos has played a total of 485 matches in Age of Empires II. Koos focuses mainly on ranked random map team matches.

A 78.0% win rate with Cumans makes it Koos's top civilization over 41 matches. Koos is at their best on Black Forest, winning 56.5% of 85 matches. The flank position is where Koos thrives, winning 47.9% of 165 games.

Koos sits at 1113 ELO in RM Team. After 12 RM 1v1 matches, Koos sits at a 33.3% win rate.