Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| Challenger Skopje | 2023/05/25 09:45 | Gerard Campana Lee v Evgeny Donskoy | 4-6,2-6 |
| Challenger Skopje | 2023/05/24 09:00 | Nerman Fatic v Gerard Campana Lee | 6-7,6-4,2-6 |
| Challenger Skopje | 2023/05/22 14:10 | Gerard Campana Lee v Daniel Dutra Da Silva | 6-3,6-2 |
| Challenger Oeiras | 2023/05/17 12:45 | Aleksandar Vukic v Gerard Campana Lee | 6-4,4-6,6-3 |
| Challenger Oeiras | 2023/05/16 12:35 | Gerard Campana Lee v Manuel Guinard | 6-3,6-2 |
| ITF M25 Valldoreix | 2023/05/07 11:30 | Anthony Genov v Gerard Campana Lee | 6-2,6-3 |
| ITF M25 Sabadell | 2023/05/03 08:00 | Henrique Rocha v Gerard Campana Lee | 6-3,6-1 |
| ITF M25 Sabadell | 2023/05/02 10:05 | Anthony Genov v Gerard Campana Lee | 1-6,0-6 |
| ITF M15 Jakarta | 2023/06/14 07:35 | Kokoro Isomura v Yurii Dzhavakian | 1-6,5-7 |
| ITF M25 Jakarta | 2023/06/09 02:30 | Kokoro Isomura v Omar Jasika | 2-6,3-6 |
| ITF M25 Jakarta | 2023/06/08 03:45 | Kokoro Isomura v Corban Crowther | 6-3,3-6,6-0 |
| ITF M25 Jakarta | 2023/06/06 05:30 | Fitriadi M Rifqi v Kokoro Isomura | 3-6,3-6 |
| ITF M25 Jakarta | 2023/06/02 03:00 | Kokoro Isomura v Dominik Palan | 1-6,4-6 |
| ITF M25 Jakarta | 2023/06/01 02:30 | Kokoro Isomura v Tomislav E Papac | 6-2,6-1 |
| ITF M25 Jakarta | 2023/05/30 06:15 | Yuki Mochizuki v Kokoro Isomura | 6-2,5-7,4-6 |
| ITF M15 Monastir | 2023/05/10 08:30 | Kokoro Isomura v Gage Brymer | 6-2,3-6,1-6 |