Kalkrohr is among the Age of Empires II players representing Switzerland. Across all ladders, Kalkrohr has played 409 matches. Kalkrohr is most active in the unranked ladder.

No ranked matches appear on Kalkrohr's profile, suggesting a preference for casual play. Kalkrohr has played 38 matches on Arena and won 60.5%. Playing the flank role, Kalkrohr achieves a 55.5% win rate over 110 matches.

In RM Team, Kalkrohr currently holds a rating of 1613.