Head to Head includes singles and doubles results.
| 04/23/21 | Numneung Koedkietpong over Klaas Walhout | 6-3; 6-0 | |
| 11/05/20 | Numneung Koedkietpong over Klaas Walhout | 4-6; 7-6; 6-0 | Playoff Match |
| 10/03/20 | Numneung Koedkietpong over Klaas Walhout | 7-5; 6-1 |
