12‑Jul‑2021 | Hamburg | Clay | R32 | 161 | 48 | Federico Delbonis [ARG] d. (Q)Zhang | 6-1 5-7 6-4 | | 0.92 | 6.8% | 1.1% | 54.5% | 68.8% | 47.5% | 7/12 | 2:13 |
12‑Jul‑2021 | Hamburg | Clay | Q2 | 161 | 154 | Zhang d. (7)Sumit Nagal [IND] | 6-4 6-2 | | 1.29 | 1.9% | 1.9% | 55.6% | 76.7% | 62.5% | 2/2 | 1:10 |
12‑Jul‑2021 | Hamburg | Clay | Q1 | 161 | 129 | Zhang d. (3)Jozef Kovalik [SVK] | 6-4 6-4 | | 1.22 | 13.1% | 6.6% | 55.7% | 73.5% | 48.1% | 2/4 | 1:28 |
5‑Jul‑2021 | Perugia CH | Clay | R16 | 175 | 301 | Nino Serdarusic [CRO] d. (4)Zhang | 7-6(6) 6-4 | | 0.70 | 7.2% | 0.0% | 58.0% | 85.0% | 51.7% | 1/2 | 1:31 |
5‑Jul‑2021 | Perugia CH | Clay | R32 | 175 | 748 | (4)Zhang d. (Q)Francesco Passaro [ITA] | 3-6 6-3 6-2 | | 1.64 | 13.6% | 3.0% | 68.2% | 84.4% | 57.1% | 0/1 | 1:22 |
28‑Jun‑2021 | Wimbledon | Grass | R128 | 175 | 156 | (Q)Antoine Hoang [FRA] d. (Q)Zhang | 4-6 7-6(5) 6-7(5) 6-3 6-2 | | 0.85 | 7.6% | 0.6% | 64.9% | 74.8% | 48.3% | 7/12 | 3:41 |
28‑Jun‑2021 | Wimbledon | Grass | Q3 | 175 | 117 | Zhang d. (4)Francisco Cerundolo [ARG] | 6-0 6-3 6-7(4) 7-6(6) | | 1.32 | 8.6% | 1.6% | 72.7% | 74.2% | 45.7% | 6/8 | 2:20 |
28‑Jun‑2021 | Wimbledon | Grass | Q2 | 175 | 172 | Zhang d. Alejandro Tabilo [CHI] | 7-6(5) 7-6(5) | | 1.14 | 14.1% | 2.4% | 71.8% | 68.9% | 45.8% | 3/6 | 1:50 |
28‑Jun‑2021 | Wimbledon | Grass | Q1 | 175 | 132 | Zhang d. (18)Juan Pablo Varillas [PER] | 6-1 6-1 | | 2.51 | 5.3% | 0.0% | 60.5% | 91.3% | 53.3% | 1/1 | 0:48 |
14‑Jun‑2021 | Nottingham 2 CH | Grass | R16 | 178 | 114 | Mackenzie Mcdonald [USA] d. (LL)Zhang | 6-4 6-7(3) 6-4 | | 0.92 | 6.7% | 2.9% | 65.4% | 64.7% | 41.7% | 4/9 | 2:16 |
14‑Jun‑2021 | Nottingham 2 CH | Grass | R32 | 178 | 91 | (LL)Zhang d. (3)Andreas Seppi [ITA] | 7-6(1) 6-4 | | 1.56 | 11.9% | 1.5% | 67.2% | 91.1% | 45.5% | 2/2 | 1:28 |
14‑Jun‑2021 | Nottingham 2 CH | Grass | Q2 | 178 | 184 | (5)Ernesto Escobedo [MEX] d. (2)Zhang | 6-3 7-6(5) | | 0.54 | 12.7% | 1.4% | 67.6% | 70.8% | 47.8% | 3/4 | 1:21 |
14‑Jun‑2021 | Nottingham 2 CH | Grass | Q1 | 178 | 665 | (2)Zhang d. (Alt)Mark Whitehouse [GBR] | 6-4 7-6(7) | | 1.25 | 14.3% | 2.9% | 70.0% | 75.5% | 57.1% | 2/3 | 1:27 |
7‑Jun‑2021 | Nottingham 1 CH | Grass | R32 | 175 | 98 | (3)Andreas Seppi [ITA] d. Zhang | 7-6(4) 6-2 | | 0.59 | 9.7% | 0.0% | 69.4% | 62.8% | 57.9% | 1/3 | 1:10 |
31‑May‑2021 | Roland Garros | Clay | Q2 | 175 | 134 | (18)Peter Gojowczyk [GER] d. Zhang | 6-0 7-6(2) | | 0.71 | 2.1% | 2.1% | 62.5% | 56.7% | 44.4% | 3/7 | 1:02 |
31‑May‑2021 | Roland Garros | Clay | Q1 | 175 | 178 | Zhang d. Lorenzo Giustino [ITA] | 5-7 7-5 6-2 | | 1.12 | 7.7% | 1.5% | 54.6% | 64.8% | 52.5% | 18/22 | 2:51 |
17‑May‑2021 | Biella 6 CH | Clay | SF | 179 | 198 | Thanasi Kokkinakis [AUS] d. (2)Zhang | 6-2 4-6 6-3 | | 0.76 | 3.4% | 4.5% | 59.1% | 73.1% | 44.4% | 7/10 | 2:15 |
17‑May‑2021 | Biella 6 CH | Clay | QF | 179 | 222 | (2)Zhang d. Thai Son Kwiatkowski [USA] | 6-4 7-6(5) | | 1.05 | 14.8% | 3.4% | 59.1% | 78.8% | 44.4% | 5/6 | 1:49 |
17‑May‑2021 | Biella 6 CH | Clay | R16 | 179 | 446 | (2)Zhang d. (WC)Flavio Cobolli [ITA] | 4-6 6-4 6-2 | | 1.15 | 2.0% | 2.0% | 64.3% | 65.1% | 57.1% | 7/9 | 2:21 |
17‑May‑2021 | Biella 6 CH | Clay | R32 | 179 | 232 | (2)Zhang d. Borna Gojo [CRO] | 6-3 4-6 6-2 | | 1.26 | 8.2% | 5.9% | 57.6% | 75.5% | 52.8% | 4/5 | 2:30 |
10‑May‑2021 | Zagreb CH | Clay | Q2 | 183 | 215 | (6)Ramkumar Ramanathan [IND] d. (2)Zhang | 6-3 7-6(3) | | 0.84 | 1.4% | 1.4% | 58.0% | 72.5% | 31.0% | 4/7 | 1:47 |
10‑May‑2021 | Zagreb CH | Clay | Q1 | 183 | 239 | (2)Zhang d. Dimitar Kuzmanov [BUL] | 4-6 6-2 6-3 | | 1.17 | 0.0% | 1.1% | 56.3% | 61.2% | 60.5% | 5/8 | 2:19 |
3‑May‑2021 | Biella 5 CH | Clay | R16 | 185 | 202 | Alexandre Muller [FRA] d. Zhang | 6-3 6-7(4) 7-5 | | 0.91 | 0.9% | 3.7% | 57.0% | 72.1% | 50.0% | 8/11 | 3:01 |
3‑May‑2021 | Biella 5 CH | Clay | R32 | 185 | 234 | Zhang d. (Q)Felipe Meligeni Alves [BRA] | 4-6 6-4 6-4 | | 1.16 | 11.5% | 1.1% | 58.6% | 70.6% | 47.2% | 3/7 | 2:10 |
17‑Jan‑2021 | Istanbul 1 CH | Hard | R32 | 169 | 125 | (4)Facundo Bagnis [ARG] d. Zhang | 6-4 6-1 | | 0.74 | 7.3% | 3.6% | 65.5% | 50.0% | 36.8% | 2/7 | 1:21 |
10‑Jan‑2021 | Doha Aus Open Qualies | Hard | Q2 | 169 | 192 | Mikael Torpegaard [DEN] d. Zhang | 6-1 4-6 6-1 | | 0.67 | 4.5% | 1.5% | 60.6% | 60.0% | 46.2% | 3/8 | 1:54 |
10‑Jan‑2021 | Doha Aus Open Qualies | Hard | Q1 | 169 | 122 | Zhang d. (9)Evgeny Donskoy [RUS] | 7-5 6-3 | | 1.46 | 10.3% | 3.4% | 53.4% | 77.4% | 66.7% | 0/1 | 1:27 |