2018 Kunming Open – Men's singles
# 2018 Kunming Open – Men's singles

Janko Tipsarević was the defending champion but chose not to defend his title.

Prajnesh Gunneswaran won the title after defeating Mohamed Safwat 5–7, 6–3, 6–1 in the final.

## Seeds

* Vasek Pospisil (second round)
* Evgeny Donskoy (first round)
* Jordan Thompson (semifinals)
* Ramkumar Ramanathan (first round)
* Quentin Halys (first round)
* Calvin Hemery (second round)
* Alex Bolt (first round)
* Kwon Soon-woo (quarterfinals)

## 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 |
| - | - | - | - | - | - | - | - | - |
| | Kamil Majchrzak | 6 | 3 | 1 | | | | |
| | Prajnesh Gunneswaran | 0 | 6 | 6 | | | | |
| | Prajnesh Gunneswaran | 0 | 6 | 6 | Prajnesh Gunneswaran | 5 | 6 | 6 |
| | | | | | Mohamed Safwat | 7 | 3 | 1 |
| 3 | Jordan Thompson | 6 | 4 | 3 | Mohamed Safwat | 7 | 3 | 1 |
| | Mohamed Safwat | 2 | 6 | 6 | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1 | V Pospisil | 6 | 6 | | | | | | | | | | | | | | |
| | C İlkel | 4 | 1 | | 1 | V Pospisil | 5 | 4 | | | | | | | | | |
| | V Šafránek | 3 | 6 | 3 | | L Harris | 7 | 6 | | | | | | | | | |
| | L Harris | 6 | 4 | 6 | | | | | | | L Harris | 2 | 4 | | | | |
| | T-h Yang | 6 | 4 | 6 | | | | | | | K Majchrzak | 6 | 6 | | | | |
| | A Nedovyesov | 4 | 6 | 0 | | T-h Yang | 6 | 3 | 2 | | | | | | | | |
| | K Majchrzak | $7^7$ | 6 | | | K Majchrzak | 4 | 6 | 6 | | | | | | | | |
| 7 | A Bolt | $6^3$ | 2 | | | | | | | | | | | K Majchrzak | 6 | 3 | 1 |
| 4 | R Ramanathan | 4 | $6^5$ | | | | | | | | | | | P Gunneswaran | 0 | 6 | 6 |
| | A Whittington | 6 | $7^7$ | | | A Whittington | 4 | 4 | | | | | | | | | |
| LL | H Grenier | 2 | 1 | | | P Gunneswaran | 6 | 6 | | | | | | | | | |
| | P Gunneswaran | 6 | 6 | | | | | | | | P Gunneswaran | 6 | 6 | | | | |
| Q | S Balaji | 6 | $6^5$ | 6 | | | | | | 8 | S-w Kwon | 2 | 3 | | | | |
| | Z Li | 4 | $7^7$ | 4 | Q | S Balaji | 4 | 5 | | | | | | | | | |
| WC | Wang Ruikai | 2 | 4 | | 8 | S-w Kwon | 6 | 7 | | | | | | | | | |
| 8 | S-w Kwon | 6 | 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 5 | Q Halys | 6 | 4 | 4 | | | | | | | | | | | | | | |
| Q | S Mukund | 3 | 6 | 6 | Q | S Mukund | 6 | $7^9$ | | | | | | | | | | |
| | D-h Lee | 6 | $7^7$ | | | D-h Lee | 2 | $6^7$ | | | | | | | | | | |
| WC | Wang Ruixuan | 2 | $6^5$ | | | | | | | Q | S Mukund | 2 | 4 | | | | | |
| | D Wu | $6^3$ | 3 | | | | | | | 3 | J Thompson | 6 | 6 | | | | | |
| Q | Y-s Chung | $7^7$ | 6 | | Q | Y-s Chung | 3 | 4 | | | | | | | | | | |
| | R Ortega Olmedo | 3 | 3 | | 3 | J Thompson | 6 | 6 | | | | | | | | | | |
| 3 | J Thompson | 6 | 6 | | | | | | | | | | | 3 | J Thompson | 6 | 4 | 3 |
| 6 | C Hemery | $7^7$ | 6 | | | | | | | | | | | | M Safwat | 2 | 6 | 6 |
| | Ze Zhang | $6^5$ | 3 | | 6 | C Hemery | 4 | 5 | | | | | | | | | | |
| WC | Li Yuanfeng | 3 | 4 | | WC | Y Bai | 6 | 7 | | | | | | | | | | |
| WC | Y Bai | 6 | 6 | | | | | | | WC | Y Bai | 1 | 3 | | | | | |
| | M Safwat | 3 | $7^7$ | 6 | | | | | | | M Safwat | 6 | 6 | | | | | |
| Q | V Vardhan | 6 | $6^4$ | 2 | | M Safwat | 1 | 6 | 6 | | | | | | | | | |
| | Y Wu | 6 | 4 | 6 | | Y Wu | 6 | 3 | 4 | | | | | | | | | |
| 2 | E Donskoy | 4 | 6 | 3 | | | | | | | | | | | | | | |
