Representing Belgium, Kiefer is active in the Age of Empires II scene. Across all ladders, Kiefer has played 823 matches. The majority of Kiefer's matches are in the ranked random map 1v1 mode.

Across 31 games, Kiefer wins 48.4% of the time when playing Mongols. MegaRandom has proven to be Kiefer's strongest map—63.3% win rate in 90 games. When playing pocket, Kiefer wins 76.9% of the time (13 matches total).

On the RM Team leaderboard, Kiefer has a rating of 1658. After 760 RM 1v1 matches, Kiefer sits at a 51.3% win rate.