| 30‑Sep‑2019 | M15 Nanchang | Clay | R32 | 1036 | | Natthasith Kunsuwan [THA] d. Xia | 3-6 7-6(3) 6-2 | | | | | | | | | |
| 1‑Jul‑2019 | M25 Kunshan | Hard | SF | | 530 | (4)Fajing Sun [CHN] d. (Q)Xia | 7-6(4) 6-2 | | | | | | | | | |
| 1‑Jul‑2019 | M25 Kunshan | Hard | QF | | | (Q)Xia d. Yuanfeng Li [CHN] | 6-4 1-6 7-6(3) | | | | | | | | | |
| 1‑Jul‑2019 | M25 Kunshan | Hard | R16 | | | (Q)Xia d. (IR )Daisuke Sumizawa [JPN] | 6-3 4-6 6-3 | | | | | | | | | |
| 1‑Jul‑2019 | M25 Kunshan | Hard | R32 | | | (Q)Xia d. Jurence Zosimo Mendoza [PHI] | 6-3 4-6 6-1 | | | | | | | | | |
| 27‑May‑2019 | M25 Luzhou | Hard | R16 | | 675 | (6)Xin Gao [CHN] d. Xia | 6-1 6-2 | | | | | | | | | |
| 27‑May‑2019 | M25 Luzhou | Hard | R32 | | | Xia d. (IR )Li Wie Tan [TPE] | 6-3 6-3 | | | | | | | | | |
| 13‑May‑2019 | M25 Luan | Hard | R32 | | | Chukang Wang [CHN] d. (Q)Xia | 1-6 6-3 6-4 | | | | | | | | | |
| 6‑May‑2019 | M25 Wuhan | Hard | R32 | | 402 | (2)Blake Ellis [AUS] d. Xia | 6-0 6-1 | | | | | | | | | |
| 29‑Apr‑2019 | M15 Wuhan | Hard | R32 | | 493 | (2)Wishaya Trongcharoenchaikul [THA] d. Xia | 6-3 6-3 | | | | | | | | | |
| 4‑Mar‑2019 | Zhuhai CH | Hard | Q1 | | 374 | (2)Harri Heliovaara [FIN] d. (WC)Xia | 6-1 6-4 | | 0.70 | 0.0% | 4.4% | 46.7% | 42.9% | 50.0% | 4/8 | 1:10 |
| 7‑Jan‑2019 | M15 Anning | Clay | R32 | | | (Q)Shao Fan Liu [TPE] d. Xia | 6-3 6-7(4) 6-4 | | | | | | | | | |
| 31‑Dec‑2018 | M15 Anning | Clay | R16 | | | Cing Yang Meng [TPE] d. Xia | 6-0 6-1 | | | | | | | | | |
| 31‑Dec‑2018 | M15 Anning | Clay | R32 | | 653 | Xia d. (2)Sora Fukuda [JPN] | 6-4 3-6 6-3 | | | | | | | | | |