2018 Santaizi ATP Challenger – Singles
| Singles | |
|---|---|
| 2018 Santaizi ATP Challenger | |
| Champion |
 Yuki Bhambri
|
| Runner-up |
Ramkumar Ramanathan
|
| Final score | 6–3, 6–4 |
Lu Yen-hsun was the defending champion but chose not to defend his title.
Yuki Bhambri won the title after defeating Ramkumar Ramanathan 6–3, 6–4 in the final.
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