# 2018 Jinan International Open – Men's singles

Lu Yen-hsun was the defending champion but chose not to defend his title.
Alexei Popyrin won the title after defeating James Ward 3–6, 6–1, 7–5 in the final.

## Seeds

* Ramkumar Ramanathan (first round)
* Henri Laaksonen (withdrew)
* Nikola Milojević (first round)
* Alexander Bublik (first round)
* Tatsuma Ito (second round)
* Hiroki Moriya (first round)
* Peđa Krstin (first round, retired)
* Yang Tsung-hua (second 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 | Final |
| Q | Alexei Popyrin | 6 | 3 | 6 | | | | | |
| WC | Zhang Zhizhen | 4 | 6 | 1 | | | | | |
| WC | Zhang Zhizhen | 4 | 6 | 1 | Q | Alexei Popyrin | 3 | 6 | 7 |
| | | | | | | James Ward | 6 | 1 | 5 |
| | James Ward | 6 | 6 | | | James Ward | 6 | 1 | 5 |
| WC | Xia Zihao | 2 | 1 | | | | | | |

### 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 | Semifinals |
| 1 | R Ramanathan | 3 | 4 | | | | | | | | | | | | | | | | |
| | H Heliövaara | 6 | 6 | | | H Heliövaara | 2 | 4 | | | | | | | | | | | |
| | D Petrović | 4 | 2 | | | D Yevseyev | 6 | 6 | | | | | | | | | | | |
| | D Yevseyev | 6 | 6 | | | | | | | | D Yevseyev | 3 | 6 | 3 | | | | | |
| Q | Y Bai | 3 | 5 | | | | | | | Q | A Popyrin | 6 | 3 | 6 | | | | | |
| Q | A Popyrin | 6 | 7 | | Q | A Popyrin | 4 | 7$^7$ | 7 | | | | | | | | | | |
| | A Santillan | 4$^r$ | | | 8 | T-h Yang | 6 | 6$^4$ | 5 | | | | | | | | | | |
| 8 | T-h Yang | 5 | | | | | | | | | | | | | Q | A Popyrin | 6 | 3 | 6 |
| 4 | A Bublik | 6 | 3 | 6$^4$ | | | | | | | | | | | WC | Zh Zhang | 4 | 6 | 1 |
| | Z Li | 4 | 6 | 7$^7$ | | Z Li | 6 | 3 | 4 | | | | | | | | | | |
| WC | X Gao | 5 | 0$^r$ | | WC | Zh Zhang | 4 | 6 | 6 | | | | | | | | | | |
| WC | Zh Zhang | 7 | 2 | | | | | | | WC | Zh Zhang | 6 | 6 | | | | | | |
| | R Safiullin | 6 | 7$^7$ | | | | | | | | R Safiullin | 4 | 4 | | | | | | |
| | Renta Tokuda | 3 | 6$^3$ | | | R Safiullin | 7$^9$ | 7 | | | | | | | | | | | |
| | M Banes | 6 | 1 | 2 | 5 | T Ito | 6$^7$ | 5 | | | | | | | | | | | |
| 5 | T Ito | 3 | 6 | 6 | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | P Krstin | 6$^6$ | 0$^r$ | | | | | | | | | | | | | | |
| | A Kadhe | 7$^8$ | 3 | | | A Kadhe | 3 | 1 | | | | | | | | | |
| | J Ward | 2 | 7 | 6 | | J Ward | 6 | 6 | | | | | | | | | |
| WC | Y He | 6 | 5 | 1 | | | | | | J Ward | 3 | 7 | 6 | | | | |
| Q | Manish Sureshkumar | 1 | 3 | | | | | | | D-h Lee | 6 | 5 | 4 | | | | |
| | D-h Lee | 6 | 6 | | | D-h Lee | 6 | 6 | | | | | | | | | |
| | Y Wu | 6 | 6 | | | Y Wu | 0 | 3 | | | | | | | | | |
| 3 | N Milojević | 3 | 4 | | | | | | | | | | | | J Ward | 6 | 6 |
| 6 | H Moriya | 3 | 4 | | | | | | | | | | | WC | Z Xia | 2 | 1 |
| | Ze Zhang | 6 | 6 | | | Ze Zhang | 6 | 6 | | | | | | | | | |
| | Y Takahashi | 6 | 6 | | | Y Takahashi | 4 | 3 | | | | | | | | | |
| | Hiroyasu Ehara | 4 | 3 | | | | | | | Ze Zhang | 4$^r$ | | | | | | |
| Q | TK Wang | 5 | 6$^3$ | | | | | | WC | Z Xia | 5 | | | | | | |
| | D Wu | 7 | 7$^7$ | | | D Wu | 4 | 2 | | | | | | | | | |
| WC | Xia Zihao | 2 | 4 | | WC | Z Xia | 6 | 6 | | | | | | | | | |
| LL | T-l Wu | 6 | 1$^r$ | | | | | | | | | | | | | | |