[1] The tournament's defending champion was Gerwyn Price, who won his first PDC major title by defeating Gary Anderson 16–13, in a highly controversial final in 2018.

[2] Price successfully defended the title to win his second PDC major, beating Peter Wright 16–6 with the second highest average in a Grand Slam final.

The prize fund for the Grand Slam increased from £450,000 in 2018 to £550,000 this year, with the winner getting £125,000.

[3] At most sixteen players could qualify through this method, where the position in the list depicts the priority of the qualification.

Three more invitations were given to the next highest ranked men's players: Michael van Gerwen (1) Rob Cross (2) Michael Smith (3) Gary Anderson (4) Gerwyn Price (5) Daryl Gurney (6) Peter Wright (7) James Wade (8) Dave Chisnall Ian White Nathan Aspinall Adrian Lewis Darren Webster Dimitri Van den Bergh Danny Noppert Brendan Dolan Steve Lennon William O'Connor Gabriel Clemens Ross Smith Martin Schindler Jamie Hughes Robert Thornton Ryan Harrington Glen Durrant Mikuru Suzuki Jim Williams Wesley Harms Lisa Ashton Richard Veenstra Dave Parletti Wayne Warren 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 9 November 10 November 12 November