The WSK Euro Series is a European open kart racing competition organised by the WSK. Its inaugural season took place in 2010. Today, the series holds championships in six karting categories: OK, OK-N, OK-Junior, OKN-Junior, Mini Gr3 and Mini U10. Notable champions have been Formula One drivers Charles Leclerc, Lando Norris, Kimi Antonelli, four-time world champion Max Verstappen and four time IndyCar champion ÃÂlex Palou.