World: Billie Jean King Cup - Group I - Doubles - Main |
| | Stollar F./Szabanin N. | Svendsen J. C./Tauson C. | CAN. | details | 10.04.2024 |
| | Klaffner M./Kraus S. | Munk Mortensen R./Svendsen J. C. | 2:0 (6:3, 7:5) | details | 08.04.2024 |
France: W35 Petit-Bourg - Doubles - Main |
| 1/8-finals | Bowers A./Inisan E. | Cabaj Awad J./Svendsen J. C. | 2:1 (6:4, 3:6, 10:4) | details | 16.01.2024 |
Italy: W25 Ortisei - Doubles - Main |
| Quarter-finals | Daubnerova N./Milatova S. | Hennemann C. W./Svendsen J. C. | WO. | details | 22.11.2023 |
Canada: W60 Toronto - Doubles - Main |
| Quarter-finals | Jokic K./Svendsen J. C. | Cross K./Hovde L. | 1:2 (1:6, 6:4, 7:10) | details | 26.10.2023 |
| 1/8-finals | Fett J./Mikulskyte J. | Jokic K./Svendsen J. C. | 0:2 (1:6, 4:6) | details | 24.10.2023 |
Canada: W60 Saguenay - Doubles - Main |
| Final | Kupres M./Svendsen J. C. | Anderson R./Hewitt D. | 0:2 (1:6, 4:6) | details | 21.10.2023 |
| Semi-finals | Boulais I./Sleeth L. | Kupres M./Svendsen J. C. | 0:2 (5:7, 4:6) | details | 21.10.2023 |
| Quarter-finals | Kupres M./Svendsen J. C. | Brace C./Lagaev N. | 2:0 (6:0, 6:0) | details | 19.10.2023 |
| 1/8-finals | Jokic K./Mikulskyte J. | Kupres M./Svendsen J. C. | 0:2 (4:6, 4:6) | details | 17.10.2023 |
USA: W60 Berkeley, CA - Doubles - Main |
| 1/8-finals | Svendsen J. C./Viller Moller H. | Aney J./Herazo Gonzalez M. | 1:2 (6:4, 2:6, 4:10) | details | 19.09.2023 |
Denmark: W25 Koge - Doubles - Main |
| Quarter-finals | Lovric P./Nagy A. | Munk Mortensen R./Svendsen J. C. | 2:1 (1:6, 6:1, 10:3) | details | 04.08.2023 |
| 1/8-finals | Thiemke O./Wiche C. | Munk Mortensen R./Svendsen J. C. | 0:2 (2:6, 3:6) | details | 02.08.2023 |
Denmark: W15 Vejle - Doubles - Main |
| Semi-finals | Svendsen J. C./Vandewinkel H. | Munk Mortensen R./Viller Moller H. | 0:2 (4:6, 5:7) | details | 28.07.2023 |
| Quarter-finals | Lieberman S./Saner J. | Svendsen J. C./Vandewinkel H. | 0:2 (3:6, 2:6) | details | 27.07.2023 |
| 1/8-finals | Ahti V./Thiemke O. | Svendsen J. C./Vandewinkel H. | 0:2 (1:6, 2:6) | details | 25.07.2023 |