 Greece: M15 Heraklion 4 - Doubles - Main |
|---|
| Final | Hua R./Zhang Z. | Ochi M./Uzhylovskyi V. | 2:1 (6:2, 66:7, 10:7) | details | 12.06.2021 |
| Semi-finals | Hua R./Zhang Z. | Thanos A./Tsitsipas Pe. | 2:0 (6:4, 6:4) | details | 11.06.2021 |
| Quarter-finals | Hua R./Zhang Z. | Ginat R./Simon S. | 2:0 (6:1, 6:2) | details | 10.06.2021 |
| 1/8-finals | Hua R./Zhang Z. | Jones B./Wendelken H. | 2:0 (6:4, 6:1) | details | 08.06.2021 |
| Greece: M15 Heraklion 3 - Doubles - Main |
|---|
| Final | Hua R./Zhang Z. | Mochizuki Y./Niki T. | 0:2 (3:6, 4:6) | details | 05.06.2021 |
| Semi-finals | Hua R./Zhang Z. | Alvarez Varona N./Alves M. | 2:0 (7:65, 6:3) | details | 04.06.2021 |
| Quarter-finals | Hua R./Zhang Z. | Donski A./Moeller M. | 2:1 (6:4, 3:6, 10:4) | details | 03.06.2021 |
| 1/8-finals | Hua R./Zhang Z. | Trongcharoenchaikul W./Wattanakul P. | 2:1 (4:6, 6:1, 10:6) | details | 01.06.2021 |
| Greece: M15 Heraklion 2 - Doubles - Main |
|---|
| Semi-finals | Hua R./Zhang Z. | Cash J./Stalder R. | 0:2 (67:7, 3:6) | details | 28.05.2021 |
| Quarter-finals | Hua R./Zhang Z. | Caripi V./Stevenson K. | 2:0 (6:3, 6:4) | details | 27.05.2021 |
| 1/8-finals | Hua R./Zhang Z. | Mochizuki Y./Niki T. | 2:0 (6:3, 6:1) | details | 25.05.2021 |
| Greece: M15 Heraklion - Doubles - Main |
|---|
| Final | Hua R./Zhang Z. | Chrysochos P./Whitehouse M. | 1:2 (6:4, 2:6, 6:10) | details | 22.05.2021 |
| Semi-finals | Hua R./Zhang Z. | Blanchet U./Darras M. | 2:1 (7:5, 2:6, 10:7) | details | 21.05.2021 |
| Quarter-finals | Hua R./Zhang Z. | Thanos A./Xilas I. | 0:0 RET. (3:0) | details | 20.05.2021 |
| 1/8-finals | Hua R./Zhang Z. | Trongcharoenchaikul W./Wattanakul P. | 2:0 (6:2, 6:4) | details | 18.05.2021 |
 Tunisia: M15 Monastir 10 - Doubles - Main |
|---|
| 1/8-finals | Hua R./Zhang Z. | Nakagawa S./Takeru Y. | WO. | details | 12.03.2020 |
