Jarno started racing when he was 4 years old in a mini junior kart on the track in Strijen. When he was 7 years old he entered my first race, which was a club Championship at SHW in Strijen. In 2007 he became the club champion at SHW. After that he entered the Dutch championships in 2008. He stayed at the mini junior karts until 2011 and was a Dutch champion in 2009 and 2010. After this he transferred to the KF-juniors and also was the Dutch Champion in this year.