[3][4] On 28 June 2018, Novak Djokovic and Juan Martín del Potro committed to this event,[5] as well as Kevin Anderson, John Isner and Diego Schwartzman on 26 July 2018.

[6] On 13 August 2018, Alexander Zverev, Grigor Dimitrov and David Goffin announced their participation for Team Europe.

[7] As their final picks, the team captains Björn Borg and John McEnroe chose Kyle Edmund and Jack Sock, respectively.

[8] As in 2017, del Potro withdrew shortly before the tournament started and was replaced by Frances Tiafoe.

[9][10] Each winning team member earned $250,000, which marks no increase in prize money compared to 2017.