Kostek tends to queue for ranked random map team matches. The map Arabia suits Kostek well: 54.1% win rate over 183 games. The stats show Kostek at their best in the flank role—36.8% win rate in 19 matches.

With 288 matches played, Kostek has built up to a 821 RM Team rating. Hailing from Poland, Kostek wins 50.0% in RM Team. Poles is their top civ at 55.8%.