[2] Price's title defence came to an end when, after surviving a match dart from Ryan Joyce to progress through the group stage, he eventually lost 10–8 to Nathan Aspinall in the last 16.

Dimitri Van den Bergh broke the record for the highest individual average for this tournament when he beat Ricky Evans 5–1 in the group stage, averaging 114.85, beating Phil Taylor's previous record of 114.65 set in the 2014 tournament.

Additionally, Simon Whitlock broke Adrian Lewis' record of hitting the most 180s in a Grand Slam match by scoring 20 maximums in his quarter-final victory over Michael van Gerwen.

[8] The qualification criteria were changed from 2019, with the number of entrants from the British Darts Organisation being reduced from eight to two, with a corresponding increase in PDC players.

Michael van Gerwen (1) Peter Wright (2) Gerwyn Price (3) Michael Smith (4) Rob Cross (5) Nathan Aspinall (6) James Wade (7) Gary Anderson (8) Dave Chisnall Dimitri Van den Bergh Ian White Glen Durrant Krzysztof Ratajski Jonny Clayton Joe Cullen Simon Whitlock Jermaine Wattimena Ricky Evans Gabriel Clemens Devon Petersen José de Sousa Luke Humphries Ryan Joyce Ryan Searle Dirk van Duijvenbode Justin Pipe Damon Heta Adam Hunt Lisa Ashton Adam Gawlas Wayne Warren (BDO) Mikuru Suzuki (BDO) All group matches are best of nine legs After three games, the top two in each group qualify for the knock-out stage NB: P = Played; W = Won; L = Lost; LF = Legs for; LA = Legs against; +/− = Plus/minus record, in relation to legs; Pts = Points; Status = Qualified to knockout stage 16 November 17 November 19 November