France: Aix en Provence - Doubles - Main |
| 1/8-finals | Coria F./Dellien H. | Martinez L. D./Reyes-Varela M. | 1:2 (1:6, 6:4, 5:10) | details | 08.09.2020 |
World: Davis Cup - World Group I - Doubles - Preliminary |
| | Dellien H./Zeballos F. | Cid Subervi R./Hardt N. | 2:0 (6:3, 6:2) | details | 07.03.2020 |
Chile: Santiago - Doubles - Main |
| 1/8-finals | Demoliner M./Middelkoop M. | Dellien H./Goransson A. | 2:1 (5:7, 6:3, 10:8) | details | 25.02.2020 |
Brazil: Rio de Janeiro - Doubles - Qualification |
| Semi-finals | Dellien H./Mayer L. | Caruso S./Gaio F. | 0:2 (2:6, 2:6) | details | 16.02.2020 |
Argentina: Buenos Aires - Doubles - Main |
| Quarter-finals | Cuevas P./Dellien H. | Gille S./Vliegen J. | WO. | details | 14.02.2020 |
| 1/8-finals | Cuevas P./Dellien H. | Mayer L./Molteni A. | 2:0 (6:4, 6:4) | details | 12.02.2020 |
Argentina: Cordoba - Doubles - Main |
| 1/8-finals | Cuevas P./Dellien H. | Bagnis F./Pella G. | 0:2 (4:6, 5:7) | details | 05.02.2020 |
Australia: Australian Open - Doubles - Main |
| 1/32-finals | Arevalo M./O'Mara J. | Dellien H./Londero J. I. | 2:0 (6:3, 6:2) | details | 22.01.2020 |
New Zealand: Auckland - Doubles - Main |
| 1/8-finals | Dellien H./Monteiro T. | Inglot D./Qureshi A. | 0:2 (3:6, 4:6) | details | 14.01.2020 |
Brazil: Campinas - Doubles - Main |
| Quarter-finals | Dellien H./Zeballos F. | Galdos S./Mayer L. | WO. | details | 04.10.2019 |
| 1/8-finals | Cerundolo F./Ficovich J. P. | Dellien H./Zeballos F. | 0:2 (68:7, 5:7) | details | 01.10.2019 |
Argentina: Buenos Aires 2 - Doubles - Main |
| Final | Andreozzi G./Molteni A. | Dellien H./Zeballos F. | 2:1 (63:7, 6:2, 10:1) | details | 29.09.2019 |
| Semi-finals | Dellien H./Zeballos F. | Reyes-Varela M./Romboli F. | 2:1 (3:6, 6:3, 10:8) | details | 27.09.2019 |