Stadium: Center Court Round: 25 Ground: Hardcourt outdoor
| ITF M25 - Ajaccio | 2023/07/03 16:25 | Adan Freire Da Silva v Guillaume Dalmasso | 6-2,6-1 |
| ITF M25 - Ajaccio | 2023/07/02 19:35 | Enzo Frequelin v Guillaume Dalmasso | 4-6,2-6 |
| ITF M15 - Irvine | 2023/06/26 17:00 | Quinn Vandecasteele v Guillaume Dalmasso | 1-6,6-3,10-6 |
| ITF M15 - Los Angeles | 2023/06/21 21:30 | Guillaume Dalmasso v James Watt | 1-6,5-7 |
| ITF M15 - Los Angeles | 2023/06/20 17:00 | Jonas Eriksson Ziverts v Guillaume Dalmasso | 7-5,6-0 |
| ITF M15 - Fayetteville | 2022/11/02 16:15 | Guillaume Dalmasso v Warren Wood | 2-6,4-6 |
| ITF M15 - Fayetteville | 2022/11/01 15:00 | Santiago Giamichelle v Guillaume Dalmasso | 6-2,3-6,7-10 |
| ITF M15 - Fayetteville | 2022/10/31 14:30 | Valentin De Carvalho v Guillaume Dalmasso | 2-6,1-6 |
| ITF M25 - Bakio | 2023/07/01 16:15 | Henrique Rocha v Lucas Poullain | 6-2,6-2 |
| ITF M25 - Bakio | 2023/06/30 13:00 | Lucas Poullain v Stefanos Sakellaridis | 1-6,6-2,6-1 |
| ITF M25 - Bakio | 2023/06/28 08:00 | Lucas Poullain v John Echeverria | 7-5,7-6 |
| ITF M25 - Bakio | 2023/06/26 16:25 | Lucas Poullain v Carlos Divar | 6-2,6-2 |
| Challenger - Blois | 2023/06/18 11:50 | Conner Huertas Del Pino v Lucas Poullain | 6-3,4-6,6-1 |
| ITF M25 - Carnac | 2023/06/03 13:00 | Lucas Poullain v Antoine Hoang | 4-6,6-2,6-2 |
| ITF M25 - Carnac | 2023/06/02 13:50 | Lucas Poullain v Mathias Bourgue | 7-5,6-2 |
| ITF M25 - Carnac | 2023/06/01 14:15 | Titouan Droguet v Lucas Poullain | 5-7,4-6 |