USA: Miami - Doubles - Main |
| 1/8-finals | Bopanna R./Ebden M. | Nys H./Zielinski J. | 2:0 (7:5, 7:63) | details | 25.03.2024 |
| 1/16-finals | Nys H./Zielinski J. | Gille S./Vliegen J. | 2:0 (7:65, 7:62) | details | 24.03.2024 |
USA: Phoenix - Doubles - Main |
| Semi-finals | Hijikata R./Patten H. | Martin F./Nys H. | 2:0 (6:2, 6:4) | details | 16.03.2024 |
| Quarter-finals | Fognini F./Kokkinakis T. | Martin F./Nys H. | WO. | details | 16.03.2024 |
| 1/8-finals | Hach Verdugo H./Moreno De Alboran N. | Martin F./Nys H. | 0:2 (3:6, 2:6) | details | 15.03.2024 |
USA: Indian Wells - Doubles - Main |
| 1/16-finals | Nys H./Zielinski J. | Bolelli S./Vavassori A. | 0:2 (4:6, 4:6) | details | 10.03.2024 |
Mexico: Acapulco - Doubles - Main |
| Final | Gonzalez S./Skupski N. | Nys H./Zielinski J. | 0:2 (3:6, 2:6) | details | 03.03.2024 |
| Semi-finals | Heliovaara H./Peers J. | Nys H./Zielinski J. | 0:2 (4:6, 3:6) | details | 02.03.2024 |
| Quarter-finals | Erler A./Miedler L. | Nys H./Zielinski J. | 1:2 (3:6, 6:2, 11:13) | details | 01.03.2024 |
| 1/8-finals | Andreozzi G./Reyes-Varela M. A. | Nys H./Zielinski J. | 1:2 (5:7, 6:2, 6:10) | details | 28.02.2024 |
Mexico: Los Cabos - Doubles - Main |
| 1/8-finals | King E./Stalder R. | Nys H./Zielinski J. | 2:1 (6:4, 1:6, 10:6) | details | 22.02.2024 |
USA: Delray Beach - Doubles - Main |
| Semi-finals | Cash J./Galloway R. | Nys H./Zielinski J. | 2:0 (6:4, 7:5) | details | 17.02.2024 |
| Quarter-finals | Andreozzi G./Reyes-Varela M. A. | Nys H./Zielinski J. | 0:2 (2:6, 2:6) | details | 15.02.2024 |
| 1/8-finals | Albot R./Lestienne C. | Nys H./Zielinski J. | 0:2 (3:6, 2:6) | details | 14.02.2024 |
| 1/8-finals | Duckworth J./Michelsen A. | Nys H./Zielinski J. | CAN. | details | 14.02.2024 |
World: Davis Cup - World Group II - Doubles - Preliminary |
| | Vallejo D./Vergara del Puerto M. A. | Arneodo R./Nys H. | 0:2 (62:7, 4:6) | details | 04.02.2024 |
Australia: Australian Open - Doubles - Main |
| Quarter-finals | Hanfmann Y./Koepfer D. | Nys H./Zielinski J. | 2:0 (6:4, 7:63) | details | 24.01.2024 |
Australia: Australian Open - Mixed Doubles - Main |
| 1/8-finals | Hsieh S-W./Zielinski J. | Schuurs D./Nys H. | 2:0 (6:3, 6:2) | details | 22.01.2024 |
Australia: Australian Open - Doubles - Main |
| 1/8-finals | Glasspool L./Rojer J. | Nys H./Zielinski J. | 1:2 (6:3, 4:6, 63:7) | details | 22.01.2024 |
| 1/16-finals | Purcell M./Thompson J. | Nys H./Zielinski J. | 1:2 (3:6, 7:65, 1:6) | details | 20.01.2024 |
Australia: Australian Open - Mixed Doubles - Main |
| 1/16-finals | Schuurs D./Nys H. | Kato M./Puetz T. | 2:1 (64:7, 6:2, 11:9) | details | 19.01.2024 |
Australia: Australian Open - Doubles - Main |
| 1/32-finals | McCabe J./Sweeny D. | Nys H./Zielinski J. | 1:2 (7:65, 5:7, 2:6) | details | 17.01.2024 |
Australia: Adelaide - Doubles - Main |
| Semi-finals | Nys H./Zielinski J. | Ram R./Salisbury J. | 1:2 (64:7, 7:5, 6:10) | details | 12.01.2024 |
| Quarter-finals | Dodig I./Krajicek A. | Nys H./Zielinski J. | WO. | details | 11.01.2024 |
| 1/8-finals | Melo M./Middelkoop M. | Nys H./Zielinski J. | WO. | details | 10.01.2024 |
Australia: Brisbane - Doubles - Main |
| 1/8-finals | Purcell M./Thompson J. | Mektic N./Nys H. | 2:0 (6:3, 6:3) | details | 03.01.2024 |
France: Metz - Doubles - Main |
| Final | Nys H./Zielinski J. | Frantzen C./Jebens H. | 2:0 (6:4, 6:4) | details | 11.11.2023 |
| Semi-finals | Nys H./Zielinski J. | Doumbia S./Reboul F. | 2:1 (66:7, 6:2, 10:2) | details | 10.11.2023 |
| Quarter-finals | Nys H./Zielinski J. | Fognini F./Herbert P. | WO. | details | 08.11.2023 |
| 1/8-finals | Nys H./Zielinski J. | Arends S./Reyes-Varela M. A. | 2:1 (6:3, 64:7, 10:1) | details | 06.11.2023 |
France: Paris - Doubles - Main |
| 1/16-finals | Heliovaara H./Pavic M. | Nys H./Zielinski J. | 2:0 (7:67, 6:4) | details | 01.11.2023 |
Switzerland: Basel - Doubles - Main |
| Final | Nys H./Zielinski J. | Gonzalez S./Roger-Vasselin E. | 1:2 (7:68, 63:7, 1:10) | details | 29.10.2023 |
| Semi-finals | Nys H./Zielinski J. | Murray J./Venus M. | 2:1 (4:6, 6:4, 10:7) | details | 28.10.2023 |
| Quarter-finals | Dodig I./Krajicek A. | Nys H./Zielinski J. | 1:2 (3:6, 6:3, 7:10) | details | 27.10.2023 |
| 1/8-finals | Griekspoor T./Haase R. | Nys H./Zielinski J. | 0:2 (65:7, 3:6) | details | 25.10.2023 |
Belgium: Antwerp - Doubles - Main |
| Semi-finals | Behar A./Pavlasek A. | Glasspool L./Nys H. | 2:1 (6:4, 3:6, 10:5) | details | 20.10.2023 |
| Quarter-finals | Glasspool L./Nys H. | Bublik A./Shevchenko A. | 2:0 (6:3, 6:3) | details | 19.10.2023 |
| 1/8-finals | Glasspool L./Nys H. | Frantzen C./Jebens H. | 2:1 (7:5, 65:7, 10:3) | details | 18.10.2023 |
China: Shanghai - Doubles - Main |
| 1/16-finals | Nys H./Zielinski J. | Gonzalez M./Molteni A. | 0:2 (4:6, 4:6) | details | 06.10.2023 |
China: Beijing - Doubles - Main |
| Quarter-finals | Nys H./Zielinski J. | Koolhof W./Skupski N. | 0:2 (2:6, 3:6) | details | 02.10.2023 |
| 1/8-finals | Nys H./Zielinski J. | Gille S./Vliegen J. | 2:0 (7:65, 6:4) | details | 30.09.2023 |
World: Davis Cup - World Group II - Doubles - Main |
| | Arneodo R./Nys H. | Escobar G./Hidalgo D. | 0:2 (4:6, 2:6) | details | 16.09.2023 |
USA: US Open - Doubles - Main |
| Quarter-finals | Nys H./Zielinski J. | Dodig I./Krajicek A. | 1:2 (4:6, 6:2, 3:6) | details | 05.09.2023 |
USA: US Open - Mixed Doubles - Main |
| Quarter-finals | Townsend T./Shelton B. | Schuurs D./Nys H. | 2:0 (6:4, 6:2) | details | 05.09.2023 |
USA: US Open - Doubles - Main |
| 1/8-finals | Gonzalez S./Roger-Vasselin E. | Nys H./Zielinski J. | 1:2 (7:63, 4:6, 2:6) | details | 04.09.2023 |
USA: US Open - Mixed Doubles - Main |
| 1/8-finals | Olmos G./Puetz T. | Schuurs D./Nys H. | 0:2 (3:6, 1:6) | details | 03.09.2023 |
USA: US Open - Doubles - Main |
| 1/16-finals | Djere L./Huesler M. | Nys H./Zielinski J. | 0:2 (3:6, 64:7) | details | 02.09.2023 |
USA: US Open - Mixed Doubles - Main |
| 1/16-finals | Dabrowski G./Lammons N. | Schuurs D./Nys H. | 0:2 (4:6, 4:6) | details | 01.09.2023 |
USA: US Open - Doubles - Main |
| 1/32-finals | Bhambri Y./Demoliner M. | Nys H./Zielinski J. | 0:2 (3:6, 5:7) | details | 31.08.2023 |