 Brazil: M15 Sao Paulo - Doubles - Main |
|---|
| Quarter-finals | Becerra Otarola I. A./Nunez D. A. | Klier Junior G./Oliveira C. | 2:0 (7:63, 7:64) | details | 24.08.2023 |
| 1/8-finals | Klier Junior G./Oliveira C. | De Dios F./Ratti L. | 2:0 (6:2, 6:1) | details | 23.08.2023 |
 Tunisia: M15 Monastir 28 - Doubles - Main |
|---|
| Quarter-finals | Klier Junior G./Oliveira C. | Cronje L./Popyrin An. | 1:2 (6:2, 63:7, 7:10) | details | 13.07.2023 |
| 1/8-finals | Pearson K./Watanabe S. | Klier Junior G./Oliveira C. | 1:2 (6:3, 3:6, 5:10) | details | 11.07.2023 |
| Tunisia: M15 Monastir 27 - Doubles - Main |
|---|
| Semi-finals | Kudriashov I./Lobanov A. | Klier Junior G./Oliveira C. | 2:1 (6:3, 65:7, 10:8) | details | 07.07.2023 |
| Quarter-finals | Klier Junior G./Oliveira C. | Reco A./Wallart E. | 2:0 (6:2, 6:4) | details | 06.07.2023 |
| 1/8-finals | Ilhan M./Ovchinnikov V. | Klier Junior G./Oliveira C. | 0:2 (3:6, 3:6) | details | 04.07.2023 |
| Tunisia: M15 Monastir 24 - Doubles - Main |
|---|
| Final | Merino A./Negritu Ch. | Klier Junior G./Oliveira C. | 0:2 (5:7, 4:6) | details | 17.06.2023 |
| Semi-finals | Kudriashov I./Lobanov A. | Klier Junior G./Oliveira C. | 0:2 (63:7, 1:6) | details | 16.06.2023 |
| Quarter-finals | Klier Junior G./Oliveira C. | Coelho F./Ouakaa A. | 2:1 (3:6, 6:2, 11:9) | details | 15.06.2023 |
| 1/8-finals | Klier Junior G./Oliveira C. | Martin D./Melnic V. | 2:0 (6:3, 6:3) | details | 13.06.2023 |
| Brazil: Rio de Janeiro - Doubles - Main |
|---|
| Quarter-finals | Klier Junior G./Oliveira C. | Arevalo M./Reyes-Varela M. A. | 0:2 (3:6, 2:6) | details | 24.11.2017 |
| 1/8-finals | Casanova H./Ficovich J. P. | Klier Junior G./Oliveira C. | 1:2 (6:4, 2:6, 6:10) | details | 21.11.2017 |
