Rodionov J — Bergs Z

Zverev A — Dodig M

Samuel T — Andrade A

Neumayer L — Onclin G

Altmaier D — Prizmic D

Fery A — Guillen Meza A

Mensik J — Shelton B

Lehecka J — Tien L

Tabilo A — Merida Aguilar D

Garin C — Jodar R

Auger-Aliassime F — Rinderknech A

Draxl L — Halys Q

Germany — Croatia

Great Britain — Ecuador

Chile — Spain

Austria (doubles) — Belgium (doubles)

Czech Republic (doubles) — USA (doubles)

Canada (doubles) — France (doubles)

Slovenia (doubles) — Israel (doubles)

South Africa — Bosnia and Herzegovina

Efstathiou M — Krutykh O

Shevchenko A — Samrej K

Skatov T — Jones Maximus

Planinsek F J — Vales A

Dlimi Y — Adeleye D

Echargui M — Shoaib M

Artnak B — Kimhi O

Henning P — Nedic A

Phillips D — Magadan A

Montsi K — Dzumhur D

Mallory R — Hernandez Alex

Hardt N — Elsayed Amr

Cid Subervi R — Mabrouk K

Cruz Cesar — Faria J

Roncadelli F — Molder M

Aguilar Cardozo J — Ojakaar O

Prado Angelo J C — Choi Fu Wang

Slovakia — Greece

Serbia — Lithuania

Argentina — Turkey

Molcan A — Sakellaridis S

Gombos N — Tsitsipas S

Kecmanovic M — Butvilas E

Virtanen O — Vacherot V

Knaff A — Marozsan F

Medjedovic H — Gaubas V

Van de Zandschulp B — Mejia N

Vasa E — Catarina L

Van Herck L — Piros Z

Ruud C — Cui Jie

Griekspoor T — Rodriguez Rodriguez J A

Cerundolo F — Erel Y

Rune H — Dimitrov G

Budkov Kjaer N — Te Rigele

Tirante T A — Alkaya M

Moller E — Radulov I

Fonseca J — Wawrinka S

Heide G — Stricker D

Buse I — Vallejo A D

Varillas J P — Escurra Isnardi H J

Shepp A — Shimabukuro S

Watt J — Sakamoto R