Dee ihe na-aga n'ihu maka paragraf a - Allen ruru agba ikpeazụ nke mbụ ya na 2011 UK Championship. O meriela asọmpi ise <unk> 2012 World Open, 2013 World Open, 2016 Players Tour Championship Finals, 2018 International Championship, na 2018 Scottish Open
Ọ dị mma. Allen meriri aha mbụ ya na Triple Crown na asọmpi Masters nke 2018.