JCO is among the Age of Empires II players representing Netherlands. To date, JCO has played 1061 matches in Age of Empires II. Most of JCO's games take place on the unranked ladder.

Franks is the best-performing civilization for JCO: 64.5% wins in 31 games. JCO's strongest map performance is on Arabia: 57.1% wins in 35 games. JCO wins 45.5% of matches when playing as pocket (134 matches).

In RM Team, JCO currently holds a rating of 1168. In RM Team, JCO wins 55.0% of their matches (40 total).