Representing Czechia, Wellinger is active in the Age of Empires II scene. Wellinger has competed in 13 Age of Empires II matches so far. Wellinger dedicates most of their playtime to ranked random map 1v1.

When selecting a civilization, Wellinger goes with Japanese about 100.0% of the time. On the RM 1v1 leaderboard, Wellinger has a rating of 1026. With 11 games played in RM 1v1, Wellinger has won 54.5%.