Gertjaars was a Belgian RuneScape player with a YouTube channel of the same name. He was ranked first overall until the release of the Dungeoneering skill. He has over 2 billion total experience and had achieved level 99 in every skill besides Dungeoneering, Divination and Invention. Gertjaars has 200 million experience in 6 skills: Cooking, Ranged, Fletching, Crafting, Firemaking and Constitution and was also the first player to get 4 skills, 5 skills and 6 skills to 200 million experience.
Gertjaars had Player Moderator status, which he obtained in September 2009, but was de-modded at some point in 2011. He is a member of the clan Phoenix Horizon. Gertjaars usually wears the same outfit: Robin Hood Hat, Doctor's Gown, Black Navy Slacks, Ranger Boots, Gnome Scarf, Cooking Gauntlets, Pharaoh's Sceptre, Trimmed Farming Skillcape, and a Ring of life. He could usually be found at the Grand Exchange, near the north-west part of the counter.