| Argentina (2) |
|---|
| Del Potro, Juan Martin | | Schwartzman, Diego |
| | Australien (1) |
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| Kyrgios, Nick |
| | |
| Brasilien (1) |
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| Dutra Silva, Rogerio |
| | Bulgarien (1) |
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| Dimitrov, Grigor |
| | Canada (5) |
|---|
| Polansky, Peter | | Pospisil, Vasek | | Raonic, Milos | | Schnur, Brayden | | Shapovalov, Denis |
| |
| Tjekkiet (1) |
|---|
| Berdych, Tomas |
| | Frankrig (8) |
|---|
| Gasquet, Richard | | Herbert, Pierre-Hugues | | Mannarino, Adrian | | Millot, Vincent | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Tsonga, Jo-Wilfried |
| | Georgien (1) |
|---|
| Basilashvili, Nikoloz |
| | Tyskland (2) |
|---|
| Zverev, Alexander | | Zverev, Mischa |
|
| | Italien (2) |
|---|
| Fabbiano, Thomas | | Lorenzi, Paolo |
| | Japan (2) |
|---|
| Nishikori, Kei | | Sugita, Yuichi |
| | Mexico (1) |
|---|
| Escobedo, Ernesto |
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| | Rusland (3) |
|---|
| Khachanov, Karen | | Medvedev, Daniil | | Youzhny, Mikhail |
| | Serbien (1) |
|---|
| Troicki, Viktor |
| | Slovakiet (1) |
|---|
| Gombos, Norbert |
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| Sydafrika (1) |
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| Anderson, Kevin |
| | | Spanien (6) |
|---|
| Bautista Agut, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Lopez, Feliciano | | Nadal, Rafael | | Ramos-Vinolas, Albert |
| | Schweizisk (1) |
|---|
| Federer, Roger |
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| Storbritannien (1) |
|---|
| Edmund, Kyle |
| | USA (10) |
|---|
| Donaldson, Jared | | Harrison, Ryan | | Isner, John | | Johnson, Steve | | Opelka, Reilly | | Querrey, Sam | | Smyczek, Tim | | Sock, Jack | | Tiafoe, Frances | | Young, Donald |
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