Stadium: Court 2 Round: 27 Ground: Hardcourt indoor
| ITF France F22 | 2016/10/11 08:30 | Boltz, Sebastien v Nathan Seateun | 6-4,6-4 |
| ITF France F7 | 2018/04/19 13:00 | Nathan Seateun v Alexis Boureau | 7-5,6-2 |
| ITF France F7 | 2018/04/17 14:35 | Guez, David v Nathan Seateun | 1-6,4-6 |
| ITF France F7 Qual | 2018/04/15 15:30 | Nathan Seateun v Fabien Salle | 6-3,6-3 |
| ITF Tunisia F13 | 2018/04/04 09:00 | Kanar, Jonathan v Nathan Seateun | 4-6,6-3,6-2 |
| ITF Tunisia F13 | 2018/04/01 09:00 | Nathan Seateun v Santalla, Ezequiel Agustin | 7-6,4-6,5-7 |
| ITF France F6 Qual | 2018/03/18 14:50 | Benjamin Pietri v Nathan Seateun | 6-2,6-3 |
| ITF France F6 Qual | 2018/03/17 13:10 | Boulangeot, Damien v Nathan Seateun | 6-7,4-6 |
| ITF Tunisia F9 | 2018/03/06 11:00 | Nathan Seateun v Mcdaniels, Mitchell Thomas | 5-7,3-6 |
| ITF France F7 | 2018/04/18 12:00 | Antoine Walch v Boltz, Sebastien | 2-6,5-7 |
| ITF France F7 | 2018/04/17 09:00 | Reinwein, Sami v Boltz, Sebastien | 1-6,4-6 |
| ITF Portugal F6 | 2018/03/27 09:00 | Boltz, Sebastien v Frederico Ferreira Silva | 6-7,4-6 |
| ITF Portugal F6 Qual | 2018/03/26 10:00 | Boltz, Sebastien v van Der Lans, Fabian | 7-6,6-0 |
| ITF Portugal F6 Qual | 2018/03/25 09:00 | Boltz, Sebastien v Stoliar, Illia | 6-1,6-0 |
| ITF France F6 | 2018/03/21 16:55 | Dan Added v Boltz, Sebastien | 6-3,3-6,6-4 |
| France F4, Singles | 2018/03/06 11:00 | Tchoutakian, Maxime v Boltz, Sebastien | 6-2,2-6,6-2 |
| ITF France F4 Qual | 2018/03/04 13:50 | Boltz, Sebastien v Louis Dussin | 6-4,6-4 |