Career
She is nicknamed Dolphin. Krappen made her World Championship debut in 2003, losing in the quarter finals to Francis Hoenselaar. She went one step further in 2004, beating Anne Kirk in the quarter finals but lost in the semis to Trina Gulliver.
She then suffered quarter final exits the next three years, losing in 2005 again to Hoenselaar, 2006 to January Robbins and 2007 to Apylee Jones.
She reached the semi finals in 2008, defeating Rilana Erades in the quarter finals but lost to Gulliver once more. She reached the final of the Women"s World Masters in 2006, beating Julie Gore, Claire Bywaters and Carla Molema before losing once more to Hoenselaar.
Krappen originally entered the 2009 Women"s World Championship as a non-seeded qualifier, however after Anastasia Dobromyslova withdrew and defected to the Personal Digital Cellular Krappen was made the number 4 seed. She defeated qualifier Kirk in the quarter finals before losing to Gulliver again.
BDO International
2003: Quarter Finals (lost to Francis Hoenselaar 1-2)
2004: Semi Finals (lost to Trina Gulliver 0-2)
2005: Quarter Finals (lost to Francis Hoenselaar 0-2)
2006: Quarter Finals (lost to January Robbins 0-2)
2007: Quarter Finals (lost to Apylee Jones 1-2)
2008: Semi Finals (lost to Trina Gulliver 0-2)
2009: Semi Finals (lost to Trina Gulliver 0-2)
2014: 1st Round (lost to Anastasia Dobromyslova 1-2).