Willem has competed in 1006 Age of Empires II matches so far. Willem performs best in the pocket position, with a 47.7% win rate over 174 matches. After 256 RM Team matches, Willem sits at a 47.3% win rate.

A Dutch player, Willem is active in unranked with a 18.6% pick rate for Franks. With a 879 RM 1v1 rating, Willem's best results come from Persians (59.0%) and Arabia (52.2%).