Medalists
| Gold | Silver | Bronze |
Marcelo Tomás Barrios Vera  Chile | Francisco Cerúndolo  Argentina | Juan Pablo Varillas  Peru |
| Men's singles | |
|---|---|
| Tennis at the 2018 South American Games |
The men's singles event at the 2018 South American Games was held from 28 May to 2 June.
| Gold | Silver | Bronze |
| Marcelo Tomás Barrios Vera Chile | Francisco Cerúndolo Argentina | Juan Pablo Varillas Peru |
| Semifinals | Final | ||||||||||||
| 1 | Marcelo Tomás Barrios Vera | 6 | 6 | ||||||||||
| 4 | Juan Pablo Varillas | 3 | 2 | ||||||||||
| 1 | Marcelo Tomás Barrios Vera | 77 | 6 | ||||||||||
| Francisco Cerúndolo | 65 | 4 | |||||||||||
 Eduardo Struvay | 6 | 1 | 5 | ||||||||||
| Francisco Cerúndolo | 2 | 6 | 7 | Bronze medal match | |||||||||
| 4 | Juan Pablo Varillas | 4 | 4 | ||||||||||
| Eduardo Struvay | 0 | 0 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | MT Barrios Vera | 7 | 78 | ||||||||||||||||||||||||
| J Panta | 6 | 6 | J Panta | 5 | 66 | ||||||||||||||||||||||
 Y Bergen | 0 | 0 | 1 | MT Barrios Vera | 6 | 3 | 6 | ||||||||||||||||||||
 W Wibmer | 0 | 0 |  D Hidalgo | 4 | 6 | 3 | |||||||||||||||||||||
| D Hidalgo | 6 | 6 | D Hidalgo | 6 | 3 | 6 | |||||||||||||||||||||
| 7 | F Mantilla | 2 | 6 | 3 | |||||||||||||||||||||||
| 1 | MT Barrios Vera | 6 | 6 | ||||||||||||||||||||||||
| 4 | JP Varillas | 3 | 2 | ||||||||||||||||||||||||
| 4 | JP Varillas | 6 | 6 | ||||||||||||||||||||||||
 B Arias | 6 | 6 | B Arias | 3 | 2 | ||||||||||||||||||||||
| I Endara | 4 | 3 | 4 | JP Varillas | 6 | 6 | |||||||||||||||||||||
| L Chávez | 6 | 64 | 6 | 6 | F Zeballos | 2 | 2 | ||||||||||||||||||||
| A Riquelme | 2 | 77 | 0 | L Chávez | 64 | 3 | |||||||||||||||||||||
| 6 | F Zeballos | 77 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | E Gómez | 4 | 6 | 3 | |||||||||||||||||||||||
| E Struvay | 3 | 77 | 6 | E Struvay | 6 | 3 | 6 | ||||||||||||||||||||
| T Farjat | 6 | 65 | 4 | E Struvay | 6 | 6 | |||||||||||||||||||||
| F Roncadelli | 4 | 1 | 3 | G Lama | 3 | 3 | |||||||||||||||||||||
| A Huertas del Pino | 6 | 6 | A Huertas del Pino | 2 | 6 | 3 | |||||||||||||||||||||
| 3 | G Lama | 6 | 3 | 6 | |||||||||||||||||||||||
| E Struvay | 6 | 1 | 5 | ||||||||||||||||||||||||
| F Cerúndolo | 2 | 6 | 7 | ||||||||||||||||||||||||
| 8 | A Tabilo | 6 | 6 | ||||||||||||||||||||||||
| G Issa | 3 | 3 | |||||||||||||||||||||||||
| 8 | A Tabilo | 5 | 65 | ||||||||||||||||||||||||
| F Cerúndolo | 6 | 77 | F Cerúndolo | 7 | 77 | ||||||||||||||||||||||
 LD Martínez | 3 | 64 | F Cerúndolo | 3 | 6 | 78 | |||||||||||||||||||||
| 2 | C Rodríguez | 6 | 2 | 66 | |||||||||||||||||||||||
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Kremlin Cup, Tennis
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