28‑Oct‑2019 | Shenzhen CH | Hard | R64 | 695 | 410 | Bruno Santanna [BRA] d. (WC)Gao | 6-4 6-2 | | 0.65 | 13.0% | 1.9% | 57.4% | 64.5% | 30.4% | 2/6 | 1:08 |
21‑Oct‑2019 | Liuzhou CH | Hard | R64 | 693 | 528 | Sidharth Rawat [IND] d. Gao | 6-4 6-4 | | 0.63 | 3.1% | 3.1% | 66.2% | 74.4% | 31.8% | 2/4 | 1:10 |
14‑Oct‑2019 | Ningbo CH | Hard | R64 | 691 | 308 | Tsung Hua Yang [TPE] d. (WC)Gao | 6-2 7-6(4) | | 0.67 | 7.9% | 0.0% | 57.1% | 69.4% | 59.3% | 1/3 | 1:16 |
23‑Sep‑2019 | Chengdu | Hard | Q1 | 693 | 90 | (3)Alexei Popyrin [AUS] d. (WC)Gao | 7-6(2) 6-2 | | 0.66 | 7.5% | 3.0% | 61.2% | 70.7% | 38.5% | 3/6 | 1:14 |
9‑Sep‑2019 | Shanghai CH | Hard | R64 | 689 | 396 | Collin Altamirano [USA] d. (WC)Gao | 6-1 6-1 | | 0.49 | 4.2% | 0.0% | 56.3% | 51.9% | 28.6% | 2/7 | 0:53 |
2‑Sep‑2019 | Jinan CH | Hard | R64 | 696 | 660 | (WC)Yecong He [CHN] d. (WC)Gao | 6-1 6-4 | | 0.54 | 9.3% | 4.0% | 56.0% | 59.5% | 39.4% | 6/10 | 1:12 |
19‑Aug‑2019 | M25 Santander | Clay | R32 | 697 | 405 | Nikolas Sanchez Izquierdo [ESP] d. Gao | 6-1 6-1 | | | | | | | | | |
12‑Aug‑2019 | M15 Vigo | Clay | R16 | 713 | 1064 | Arthur Reymond [FRA] d. Gao | 4-6 6-4 6-3 | | | | | | | | | |
12‑Aug‑2019 | M15 Vigo | Clay | R32 | 713 | 1243 | Gao d. Juan Pablo Canas Garcia [ESP] | 6-4 7-5 | | | | | | | | | |
5‑Aug‑2019 | M25 Vogau | Clay | R16 | 717 | 646 | (IR )Jaroslav Pospisil [CZE] d. Gao | 6-1 7-6(4) | | | | | | | | | |
5‑Aug‑2019 | M25 Vogau | Clay | R32 | 717 | | Gao d. (Q)Vitalii Shcherba [UKR] | 6-2 6-0 | | | | | | | | | |
1‑Jul‑2019 | M25 Kunshan | Hard | R16 | 683 | 308 | Tsung Hua Yang [TPE] d. Gao | 6-4 6-2 | | | | | | | | | |
1‑Jul‑2019 | M25 Kunshan | Hard | R32 | 683 | | Gao d. (Q)Cheng Han [CHN] | 6-1 6-3 | | | | | | | | | |
24‑Jun‑2019 | M25 Yinchuan | Hard | QF | 685 | 656 | Takuto Niki [JPN] d. Gao | 6-2 6-4 | | | | | | | | | |
24‑Jun‑2019 | M25 Yinchuan | Hard | R16 | 685 | 612 | Gao d. (7)Shinji Hazawa [JPN] | 6-2 6-4 | | | | | | | | | |
24‑Jun‑2019 | M25 Yinchuan | Hard | R32 | 685 | | Gao d. Liran Chen [CHN] | 6-4 6-2 | | | | | | | | | |
10‑Jun‑2019 | M25 Hong Kong | Hard | QF | 677 | 528 | Shintaro Imai [JPN] d. Gao | 6-4 6-7(8) 6-3 | | | | | | | | | |
10‑Jun‑2019 | M25 Hong Kong | Hard | R16 | 677 | | Gao d. Maksim Tikhomirov [USA] | 7-6(6) 6-1 | | | | | | | | | |
10‑Jun‑2019 | M25 Hong Kong | Hard | R32 | 677 | 404 | Gao d. (3)Blake Ellis [AUS] | 7-6(5) 6-4 | | | | | | | | | |
3‑Jun‑2019 | M25 Hong Kong | Hard | R16 | 675 | 423 | Shuichi Sekiguchi [JPN] d. (IR )Gao | 6-3 6-1 | | | | | | | | | |
3‑Jun‑2019 | M25 Hong Kong | Hard | R32 | 675 | | (IR )Gao d. Maksim Tikhomirov [USA] | 4-6 6-1 6-1 | | | | | | | | | |
27‑May‑2019 | M25 Luzhou | Hard | QF | 675 | 521 | Yecong He [CHN] d. (6)Gao | 6-3 6-4 | | | | | | | | | |
27‑May‑2019 | M25 Luzhou | Hard | R16 | 675 | | (6)Gao d. Haitong Xia [CHN] | 6-1 6-2 | | | | | | | | | |
27‑May‑2019 | M25 Luzhou | Hard | R32 | 675 | | (6)Gao d. Ruikai Wang [CHN] | 6-4 6-0 | | | | | | | | | |
13‑May‑2019 | M25 Luan | Hard | QF | 678 | 524 | (2)Yecong He [CHN] d. Gao | 7-5 5-7 7-6(4) | | | | | | | | | |
13‑May‑2019 | M25 Luan | Hard | R16 | 678 | | Gao d. (IR )Karunuday Singh [IND] | 6-3 6-3 | | | | | | | | | |
13‑May‑2019 | M25 Luan | Hard | R32 | 678 | | Gao d. (Q)Ye Cong Mo [CHN] | 6-4 6-4 | | | | | | | | | |
6‑May‑2019 | M25 Wuhan | Hard | R32 | 679 | 565 | (7)Fajing Sun [CHN] d. Gao | 6-1 2-6 6-4 | | | | | | | | | |
29‑Apr‑2019 | M15 Wuhan | Hard | R32 | 684 | | Kazuki Nishiwaki [JPN] d. Gao | 2-6 6-3 6-3 | | | | | | | | | |
22‑Apr‑2019 | Nanchang CH | Clay | R64 | 683 | 512 | (Alt)Ben Patael [ISR] d. (WC)Gao | 6-1 6-4 | | 0.58 | 4.1% | 4.1% | 59.2% | 62.1% | 20.0% | 2/6 | 1:04 |
15‑Apr‑2019 | Anning CH | Clay | R64 | 537 | 235 | Matteo Viola [ITA] d. (WC)Gao | 6-3 6-1 | | 0.53 | 5.6% | 4.2% | 61.1% | 52.3% | 32.1% | 5/10 | 1:10 |
18‑Mar‑2019 | Zhangjiagang CH | Hard | R64 | 541 | 337 | Di Wu [CHN] d. (WC)Gao | 7-5 6-4 | | 0.85 | 6.9% | 3.4% | 48.3% | 57.1% | 53.3% | 2/7 | 1:23 |
4‑Mar‑2019 | Zhuhai CH | Hard | R64 | 542 | 342 | Alex Molcan [SVK] d. (WC)Gao | 7-5 6-4 | | 0.77 | 5.9% | 1.5% | 48.5% | 57.6% | 57.1% | 1/5 | 1:26 |
7‑Jan‑2019 | Canberra CH | Hard | R64 | 541 | 587 | (Alt)Sem Verbeek [NED] d. Gao | 1-6 7-6(7) 6-3 | | 0.83 | 4.2% | 5.1% | 63.6% | 65.3% | 48.8% | 4/6 | 2:08 |
31‑Dec‑2018 | M25 Hong Kong | Hard | R32 | 557 | 379 | (7)Jeremy Jahn [GER] d. Gao | 6-0 6-3 | | | | | | | | | |