Kammala jumla mai zuwa: A shekara ta 2015, Allen ya yi nasara a Q School kuma ya sami katin yawon shakatawa don 2015 <unk> 16 da 2016 <unk> 17 yanayi ta hanyar doke Alex Taubman 4 <unk> 2 a wasan karshe na Event 2. Ya lashe wasan farko a matsayin kwararre ta hanyar doke Adam Edge 5<unk>3 a gasar Australiya ta Goldfields Open, amma ya rasa 5<unk>1 ga Jamie Burnett a zagaye na biyu. Allen ya ga Barry Pinches da Aditya Mehta duka 5<unk>1 a zagaye na cancanta don Shanghai Masters, kafin ya rasa ta hanyar juyawa wannan ƙirar zuwa Li Hang. Ya fara fitowa a matakin wasan kwaikwayo na wasan kwaikwayo a York don gasar zakarun Burtaniya kuma Liang Wenbo ya ci shi 6<unk>1. Allen ya rasa wasanni 15 a jere daga Agusta 2015 har zuwa farkon kakar 2016-17, lokacin da ya doke Kurt Maflin 4-3 don cancanta ga Masters Riga. Allen ya lashe wasa a filin wasa na wasan kwaikwayo a karo na farko ta hanyar wuce Ross Muir 4 × 3 a zagaye na farko na gasar.
Scottish Open sannan ya rasa 4 zuwa 3 ga Mike Dunn. Nasara 5<unk>4 a kan Robin Hull ya gan shi ya cancanci zuwa China Open, inda Ronnie O'Sullivan ya doke shi 5<unk>0 a zagaye na biyu. Allen ya sauka daga yawon shakatawa a ƙarshen kakar wasa yayin da aka sanya shi a matsayi na 110 a duniya.