Czech Open	2009
Denmark Open	2008
Latvia Open	2010
Poland National Championships	2009
Soft Tip EDU European Championship	2008
Soft Tip SDWF European Championship	2005

Krzysztof Ratajski (born 1 January 1977) is a Polish darts player who plays in British Darts Organisation events.

Ratajski's first major run came in the 2007 Czech Open where he reached the semi finals. He gained notable wins over Joey ten Berge and local player Marek Polak, eventually losing to Patrick Loos who won the tournament. He then went on to win the 2008 Denmark Open, a tournament previously won by the likes of John Lowe, Eric Bristow, Phil Taylor and Raymond van Barneveld. He defeated Hungary's Nándor Bezzeg, Finland's Marko Kantele and Belgian Geert De Vos en route to the final where he beat Fabian Roosenbrand.

On 4 December 2008 Ratajski qualified for the 2009 BDO World Darts Championship, earning one of five spots available. He earned notable wins over former qualifier Ian Jones and Mike Veitch before beating Robbie Green to qualify, becoming the first Polish player to qualify for either world championship. The next day, Ratajski took part in the 2008 Winmau World Masters, but lost in the very first round to Denmark's Stig Jorgensen. Ratajski then lost in the first round of the 2009 World Championship to Edwin Max.

Ratajski represented Poland in the inaugural PDC World Cup of darts in partnership with Krzysztof Kciuk. They lost 2–6 in the first round to New Zealand, who were represented by Phillip Hazel and Warren Parry. He did not feature in the tournament again until 2013, once more with Kciuk, and they progressed to the last 16 by finishing second in Group E thanks to beating Gibraltar 5–2. They played the host nation Germany, who were represented by Jyhan Artut and Andree Welge, and were defeated 5–2.

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