2018 Champions

ATP
Roberto Bautista Agut - ESP (1): Auckland
Nick Kyrgios - AUS (1): Brisbane
Daniil Medvedev - RUS (1): Sydney
Gael Monfils - FRA (1): Doha
Gilles Simon - FRA (1): Pune

WTA
Angelique Kerber - GER (1): Sydney
Elina Svitolina - UKR (1): Brisbane
Julia Goerges - GER (1): Auckland
Simona Halep - ROU (1): Shenzhen
Elise Mertens - BEL (1): Hobart

Titles by Country
France (2): Monfils, Simon
Germany (2): Goerges, Kerber
Australia (1): Kyrgios
Belgium (1): Mertens
Romania (1): Halep
Russia (1): Medvedev
Spain (1): Bautista Agut
Ukraine (1): Svitolina