sentences:  A year later, de Boer was the youngest competitor at the BDO World Darts Championship in Frimley Green and reached the semi finals, beating Linda Rogers-Pickett in the quarter finals before her run was ended by Ladies World Champion Trina Gulliver.She returned to the Lakeside a year later but lost in the quarter finals to Hoenselaar.Her last major tournament was the 2005 World Darts Trophy, losing in the quarter finals to Karin Krappen.