Tunisia: M15 Monastir 47 - Singles - Main |
| 1/8-finals | Khoeblal E. | Herman L. | 2:0 (6:3, 6:3) | details | 21.11.2024 |
| 1/16-finals | Tabacco G. | Herman L. | 1:2 (7:65, 2:6, 2:6) | details | 20.11.2024 |
Belgium: M25 Koksijde - Singles - Main |
| 1/8-finals | Herman L. | Blockx A. | 0:2 (3:6, 2:6) | details | 15.08.2024 |
| 1/16-finals | Herman L. | Whitehouse M. | 2:1 (6:3, 66:7, 6:4) | details | 13.08.2024 |
Luxembourg: M25 Esch/Alzette 2 - Singles - Main |
| 1/16-finals | Herman L. | Rosenkranz M. | 0:2 (1:6, 1:6) | details | 17.07.2024 |
Belgium: M25 Duffel - Singles - Main |
| 1/8-finals | Herman L. | Houkes M. | 0:2 (66:7, 1:6) | details | 20.06.2024 |
| 1/16-finals | Buldorini P. | Herman L. | 0:2 (64:7, 1:6) | details | 19.06.2024 |
Belgium: M25 Arlon - Singles - Main |
| 1/16-finals | Herman L. | Schoolkate T. | 1:2 (3:6, 6:2, 1:6) | details | 22.06.2022 |
Belgium: M15 Duffel - Singles - Main |
| 1/16-finals | Blockx A. | Herman L. | 0:0 RET. (6:5, 0:0) | details | 14.06.2022 |
Tunisia: M15 Monastir 9 - Singles - Main |
| 1/8-finals | Atmane T. | Herman L. | 2:1 (6:3, 4:6, 6:2) | details | 10.03.2022 |
| 1/16-finals | Herman L. | Erel Y. | 2:0 (6:4, 7:5) | details | 09.03.2022 |
Tunisia: M15 Monastir 7 - Singles - Main |
| 1/8-finals | Passaro F. | Herman L. | 2:0 (6:3, 6:1) | details | 24.02.2022 |
| 1/16-finals | Herman L. | Breysach M. | 2:0 (6:4, 6:4) | details | 23.02.2022 |
Tunisia: M15 Monastir 5 - Singles - Main |
| 1/16-finals | Herman L. | Coulibaly E. | 0:2 (3:6, 3:6) | details | 09.02.2022 |
Tunisia: M15 Monastir 3 - Singles - Main |
| 1/16-finals | Herman L. | Moeller M. | 1:2 (3:6, 6:4, 4:6) | details | 03.02.2021 |
Tunisia: M15 Monastir 4 - Singles - Main |
| 1/8-finals | Herman L. | Echargui M. | 1:2 (2:6, 6:3, 2:6) | details | 30.01.2020 |
| 1/16-finals | Garanganga T. | Herman L. | 0:2 (3:6, 1:6) | details | 29.01.2020 |
Australia: Australian Open - Singles - Main |
| 1/32-finals | Herman L. | Alvarez Varona N. | 0:2 (4:6, 2:6) | details | 20.01.2019 |
United Kingdom: Wimbledon - Singles - Main |
| 1/16-finals | Herman L. | Hilderbrand T. | 1:2 (6:1, 64:7, 5:7) | details | 10.07.2018 |
| 1/32-finals | Hersey J. | Herman L. | 0:2 (3:6, 1:6) | details | 09.07.2018 |
United Kingdom: Wimbledon - Singles - Qualification |
| Final | Gimenez I. | Herman L. | 1:2 (6:3, 4:6, 4:6) | details | 06.07.2018 |
| Semi-finals | Squire H. | Herman L. | 1:2 (6:4, 3:6, 6:8) | details | 05.07.2018 |
France: French Open - Singles - Qualification |
| Semi-finals | Herman L. | Nanda G. | 0:2 (62:7, 0:6) | details | 31.05.2018 |
Tunisia: M15 Monastir 47 - Doubles - Main |
| Semi-finals | Herman L./Ifi N. | Haliak M./Nortey I. | 2:0 (6:4, 6:3) | details | 22.11.2024 |
| Quarter-finals | Herman L./Ifi N. | Cerny M./Novak J. | 2:0 (6:0, 6:4) | details | 21.11.2024 |
| 1/8-finals | Bondioli F./Giunta M. | Herman L./Ifi N. | 1:2 (3:6, 6:1, 8:10) | details | 19.11.2024 |
Belgium: M15 Lambermont - Doubles - Main |
| 1/8-finals | Collignon K./Herman L. | Meijer D./Van Tilburg R. | 1:2 (5:7, 6:4, 4:10) | details | 20.08.2024 |
Belgium: M25 Duffel - Doubles - Main |
| 1/8-finals | Beaupain S./Herman L. | Bailly G. A./Legout T. | 0:2 (4:6, 66:7) | details | 19.06.2024 |
Turkey: M15 Antalya 12 - Doubles - Main |
| 1/8-finals | Carr S./Denolly C. | Calzi R./Herman L. | 2:0 (7:5, 6:4) | details | 26.04.2022 |
Tunisia: M15 Monastir 12 - Doubles - Main |
| 1/8-finals | Dougaz A./Martinez M. N. | Calzi R./Herman L. | 2:0 (6:4, 6:2) | details | 29.03.2022 |
Tunisia: M15 Monastir 11 - Doubles - Main |
| Quarter-finals | Dougaz A./Knaff A. | Bovy A./Herman L. | 2:0 (6:1, 6:2) | details | 24.03.2022 |
| 1/8-finals | Bovy A./Herman L. | Gao Q./Liu H. | 2:0 (6:3, 6:3) | details | 23.03.2022 |
Tunisia: M15 Monastir 7 - Doubles - Main |
| 1/8-finals | Breysach M./Legout T. | Bovy A./Herman L. | 2:0 (7:66, 7:5) | details | 22.02.2022 |
Tunisia: M15 Monastir 3 - Doubles - Main |
| Quarter-finals | Collignon R./Herman L. | Alves M./Onclin G. | 0:2 (68:7, 3:6) | details | 04.02.2021 |
| 1/8-finals | Collignon R./Herman L. | Janis J./Storck L. | 2:0 (6:2, 6:0) | details | 02.02.2021 |
Tunisia: M15 Monastir 5 - Doubles - Main |
| 1/8-finals | Herman L./Tixhon D. | Baez S./Cabral F. | 0:2 (5:7, 4:6) | details | 04.02.2020 |
Australia: Australian Open - Doubles - Main |
| 1/16-finals | Schoolkate T./Sweeny D. | Herman L./Onclin G. | 2:0 (7:5, 6:4) | details | 20.01.2019 |
United Kingdom: Wimbledon - Doubles - Main |
| 1/16-finals | Herman L./Ichikawa T. | De Jong J./Wenger D. | 1:2 (6:3, 3:6, 4:6) | details | 10.07.2018 |