BDO International Open	2013
British Classic	2012
Czech Open	2014
Hal Open	2011
Luxembourg Open	2013
Nijerk Open	2011
Open Steenwijkerland	2014
PDC Challenge Tour England	2013, 2015 (x3)
Pontins International	2014
WDF Europe Cup Pairs	2012
WDF Europe Cup Team	2012

Jan Dekker (born 25 June 1990) is a Dutch darts player who plays in Professional Darts Corporation events.

Dekker qualified for the televised stages of the 2010 Winmau World Masters. He played eventual champion Martin Adams in the last 16, and was beaten 2-3 after Adams won a sudden-death leg.

He also qualified for the 2011 BDO World Darts Championship. He defeated 15th seed Scott Mitchell 3-0 in the first round, and 2nd seed Stuart Kellett 4-1 in the second round. He then beat tenth seed Garry Thompson 5-4 in the quarter-finals, having trailed 3-0 and 4-2 and seeing Thompson miss nine darts at doubles to win the match himself. He faced Dean Winstanley in the semi-final and lost 6-2.

Dekker was the sixth seed for the 2012 BDO World Darts Championship, where he lost 2-3 in the first round against compatriot and eventual champion Christian Kist despite averaging over 96. The following year, Dekker was seeded seventh and this time reached the quarter-finals, surviving a match dart in the first round against Jeffrey de Graaf, then edging Thompson once more in the second round this time 4-3 having trailed 3-2. In the quarters, Dekker led Richie George 3-1 but eventually lost 5-4.

In 2014, Dekker was seeded sixth and faced a fellow Dutch player in the first round for the third year in a row, this time defeating Benito van de Pas 3-0. He then beat Geert De Vos 4-2 and followed this with his first ever professional victory over three-time world champion Martin Adams, winning 5-2. In the semi-finals Dekker led Alan Norris 4-2 and had two darts to take a 5-4 lead, but eventually lost 6-5.

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