2018 President's Cup (tennis) – Men's singles
# 2018 President's Cup (tennis) – Men's singles

Egor Gerasimov was the defending champion but lost in the second round to Jurij Rodionov.

Sebastian Ofner won the title after defeating Daniel Brands $7–6^{(7–5)},$ 6–3 in the final.

## Seeds

* Mikhail Youzhny (second round)
* Alexander Bublik (first round)
* Sebastian Ofner (champion)
* Hiroki Moriya (first round)
* Egor Gerasimov (second round)
* Lee Duck-hee (second round)
* Ivan Nedelko (first round)
* Cem İlkel (first round)

## Draw

### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| - | - | - | - | - | - | - | - | - |
| | Daniel Brands | 6 | 3 | 7 | | | | |
| | Jurij Rodionov | 4 | 6 | 5 | | | | |
| | Jurij Rodionov | 4 | 6 | 5 | | Daniel Brands | $6^5$ | 3 |
| | | | | | 3 | Sebastian Ofner | $7^7$ | 6 |
| 3 | Sebastian Ofner | 6 | 6 | | 3 | Sebastian Ofner | $7^7$ | 6 |
| | Alexei Popyrin | 3 | 3 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1 | M Youzhny | 6 | 2 | 7 | | | | | | | | | | | | | | |
| | A González | 3 | 6 | 5 | 1 | M Youzhny | 6 | 4 | 3 | | | | | | | | | |
| Q | S Myneni | $7^7$ | 4 | 6 | Q | S Myneni | 3 | 6 | 6 | | | | | | | | | |
| | A Šetkić | $6^5$ | 6 | 4 | | | | | | Q | S Myneni | 4 | $7^{12}$ | 5 | | | | |
| | Hiroyasu Ehara | 3 | $6^5$ | | | | | | | | D Brands | 6 | $6^{10}$ | 7 | | | | |
| | I Gakhov | 6 | $7^7$ | | | I Gakhov | $7^7$ | 3 | 3 | | | | | | | | | |
| | D Brands | 6 | 6 | | | D Brands | $6^3$ | 6 | 6 | | | | | | | | | |
| 8 | C İlkel | 0 | 4 | | | | | | | | | | | | D Brands | 6 | 3 | 7 |
| 4 | H Moriya | 4 | 2 | | | | | | | | | | | | J Rodionov | 4 | 6 | 5 |
| | M Janvier | 6 | 6 | | | M Janvier | 4 | 7 | 6 | | | | | | | | | |
| | D Yevseyev | 4 | 6 | 6 | | D Yevseyev | 6 | 5 | 3 | | | | | | | | | |
| | R Safiullin | 6 | 3 | 4 | | | | | | | M Janvier | $7^7$ | 4 | 4 | | | | |
| | Y Mertens | 5 | 0 | | | | | | | | J Rodionov | $6^3$ | 6 | 6 | | | | |
| | J Rodionov | 7 | 6 | | | J Rodionov | 7 | 6 | | | | | | | | | | |
| | D Guez | $6^6$ | 3 | | 5 | E Gerasimov | 5 | 2 | | | | | | | | | | |
| 5 | E Gerasimov | $7^8$ | 6 | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 7 | I Nedelko | $6^2$ | 7 | 3 | | | | | | | | | | | | | | |
| WC | A Nedovyesov | $7^7$ | 5 | 6 | WC | A Nedovyesov | 6 | $6^4$ | 6 | | | | | | | | | |
| LL | A Kadhe | 6 | 3 | | LL | A Kadhe | 3 | $7^7$ | 4 | | | | | | | | | |
| LL | D Zhyrmont | 2 | $3^r$ | | | | | | | WC | A Nedovyesov | 5 | 6 | 1 | | | | |
| WC | F Dustov | 4 | 2 | | | | | | | 3 | S Ofner | 7 | 1 | 6 | | | | |
| Q | K Sultanov | 6 | 6 | | Q | K Sultanov | 3 | 3 | | | | | | | | | | |
| WC | T Khabibulin | 5 | 1 | | 3 | S Ofner | 6 | 6 | | | | | | | | | | |
| 3 | S Ofner | 7 | 6 | | | | | | | | | | | | 3 | S Ofner | 6 | 6 |
| 6 | D-h Lee | 6 | 6 | | | | | | | | | | | | | A Popyrin | 3 | 3 |
| WC | Sagadat Ayap | 4 | 2 | | 6 | D-h Lee | 7 | $6^4$ | 5 | | | | | | | | | |
| | R Ortega Olmedo | $6^8$ | 6 | 5 | Q | P Kotov | 5 | $7^7$ | 7 | | | | | | | | | |
| Q | P Kotov | $7^{10}$ | 4 | 7 | | | | | | Q | P Kotov | 1 | 4 | | | | | |
| | Y Jankovits | 6 | $7^7$ | | | | | | | | A Popyrin | 6 | 6 | | | | | |
| Q | H Grenier | 3 | $6^4$ | | | Y Jankovits | $6^6$ | 5 | | | | | | | | | | |
| | A Popyrin | 5 | 6 | 6 | | A Popyrin | $7^8$ | 7 | | | | | | | | | | |
| 2 | A Bublik | 7 | 3 | 4 | | | | | | | | | | | | | | |
