Stadium: Hard 17 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2023/10/17 06:30 | Adam Heinonen v Ki Lung NG | 5-7,4-6 |
| ITF M15 Heraklion | 2023/10/16 06:30 | Graham Maassen v Ki Lung NG | 2-6,4-6 |
| ITF M15 Monastir | 2023/10/09 08:00 | Jack Loge v Ki Lung NG | 6-2,6-3 |
| ITF M15 Monastir | 2023/10/08 08:00 | Ki Lung NG v Matei Cristian Onofrei | 3-6,6-2,10-2 |
| ITF M15 Monastir | 2023/10/01 10:00 | Ki Lung NG v Nazim Makhlouf | 6-4,6-3 |
| Davis Cup | 2023/09/17 08:15 | Ki Lung NG v Daniels Tens | 7-5,6-2 |
| ITF M25 Hong Kong | 2023/09/07 06:20 | Blake Mott v Ki Lung NG | 6-2,6-2 |
| ITF M25 Hong Kong | 2023/09/06 02:00 | Ki Lung NG v Tsung-Hao Huang | 6-4,7-5 |
| ITF M15 Heraklion | 2023/10/17 06:30 | Ioannis Kountourakis v Gabriel Matuszewski | 6-3,6-0 |
| ITF M15 Heraklion | 2023/10/16 09:00 | Ioannis Kountourakis v Piotr Siekanowicz | 6-3,6-0 |
| ITF M15 Kursumlijska Banja | 2023/09/21 12:30 | Ioannis Kountourakis v Stefan Popovic | 2-6,4-6 |
| ITF M15 Kursumlijska Banja | 2023/09/20 11:25 | Milan Drinic v Ioannis Kountourakis | 4-6,6-3,4-6 |
| ITF M15 Kursumlijska Banja | 2023/09/19 08:45 | Marko Nikolic v Ioannis Kountourakis | 4-6,4-6 |
| ITF M15 Kursumlijska Banja | 2023/09/18 11:00 | Aleksandar Mihailovic v Ioannis Kountourakis | 1-6,6-7 |
| ITF M15 Kursumlijska Banja | 2023/09/13 11:35 | Vlad Andrei Dancu v Ioannis Kountourakis | 6-3,6-4 |
| ITF M15 Kursumlijska Banja | 2023/09/12 07:00 | Antonio Massara v Ioannis Kountourakis | 6-7,4-6 |