He is one of only a few players to win consecutive titles in the
PDC.
The other players are Michael van Gerwen who last did it in 2017 as well as Phil Taylor who did it in 2015.
Gary Anderson also did it between the end of 2014-15 and finally Raymond van Barneveld did it in 2007.
This means he is only one of five players to do it in the history of the PDC showing how good of an achievement it is.
https://twitter.com/ochepedia/status/1059208758088396801