De Muijl is among the Age of Empires II players representing Netherlands. De Muijl has 1691 Age of Empires II matches on record. De Muijl is most active in the ranked random map 1v1 ladder.

De Muijl excels with Armenians, winning 60.4% of 48 matches. De Muijl performs best on the map Land Nomad, with a 59.4% win rate over 69 matches. In the pocket position, De Muijl has a 49.0% win rate across 196 games.

De Muijl has reached a rating of 1068 in RM Team. De Muijl has a win rate of 51.1% in RM Team (669 games played).