Rubuta ci gaba don wannan sakin layi - Ya kai wasan karshe na PDPA World Championship Qualifier, inda Arron Monk ya doke shi 5<unk>3. Sakamakon ya nuna cewa ya cancanci zuwa zagaye na farko na gasar zakarun duniya ta 2012
, inda ya doke Oliver Ferenc na Serbia da kafa 4 zuwa 2. Ya buga lamba 10 mai lamba Terry Jenkins a zagaye na farko a shekara ta biyu a jere kuma an doke shi 3 <unk> 0, ya ci nasara sau uku kawai a wasan. A watan Afrilu, ya sami wuri a gasar Austrian Darts Open ta hanyar kayar da Sam Hill da John Bowles a wasan neman shiga gasar Burtaniya. Ya buga Brendan Dolan a zagaye na farko kuma ya ci 6<unk>4, sannan ya ci gaba da gudu ta hanyar doke Simon Whitlock 6<unk>4, duk da cewa abokin hamayyarsa ya buga darter tara. Cullen ya doke Mark Walsh don shiga wasan kusa da na karshe, inda ya kasance a wannan lokacin a ƙarshen ƙarshen 6 × 4 yayin da ya rasa zuwa mai nasara Justin Pipe. Sakamakon mafi kyau na Cullen na kakar ya zo mako guda bayan wannan lokacin da ya ci nasara zuwa wasan kusa da na karshe na Ƙasar Ingila Open, amma sai Pipe ya yi nasara da 6 <unk> 0. Ya kuma cancanci shiga gasar Turai ta uku, European Darts Open kuma ya doke Jenkins 6<unk>1 a zagaye na farko a Düsseldorf, kafin ya yi rashin nasara ga Johnny Haines 6<unk>5 a zagaye na biyu.