Stadium: Salle Colette Besson Round: 45 Ground: Hardcourt indoor
| ITF France F2 | 2018/01/18 17:10 | Guez, David v Matteo Martineau | 4-6,1-6 |
| ITF France F2 | 2018/01/17 10:30 | Guez, David v Bauvy, Romain | 6-1,6-2 |
| Mouilleron-Le-Captif, France, Qualifying | 2017/11/05 12:55 | Guez, David v Evan Furness | 3-6,4-6 |
| Brest, France | 2017/10/24 13:20 | Gleb Sakharov v Guez, David | 6-2,6-4 |
| France F24, Singles | 2017/10/18 14:10 | Guez, David v Neuchrist, Maximilian | 6-4,6-4 |
| France F24, Singles | 2017/10/17 09:45 | Guez, David v Evan Furness | 6-4,6-3 |
| ITF France F23 Qual | 2017/10/15 13:00 | Guez, David v Authom, Maxime | 6-7,6-4,3-6 |
| ITF France F23 | 2017/10/14 12:30 | Guez, David v Corentin Denolly | 4-6,6-2,6-1 |
| ITF France F2 Qual | 2018/01/14 10:00 | Tchoutakian, Maxime v Gueydan, Quentin | 6-3,6-1 |
| ITF France F2 Qual | 2018/01/13 09:30 | Gueydan, Quentin v Ramiaramanan, Lofo | 6-1,6-2 |
| ITF France F1 Qual | 2018/01/06 12:30 | Dragoni, Alessandro v Gueydan, Quentin | 7-6,6-4 |
| ITF France F20 Qual | 2017/09/16 09:00 | Constantin Bittoun Kouzmine v Gueydan, Quentin | 6-4,7-6 |
| ITF France F19 Qual | 2017/09/10 16:20 | Matej Vocel v Gueydan, Quentin | 6-1,6-0 |
| ITF France F8 Qual | 2015/04/19 16:15 | Gueydan, Quentin v Joffrey De Schepper | 5-7,5-7 |
| ITF France F7 Qual | 2015/03/22 09:00 | Groll, Teri v Gueydan, Quentin | 6-4,1-6,6-1 |
| ITF France F7 Qual | 2015/03/21 09:00 | Gueydan, Quentin v Valentin Vacherot | 7-6,6-0 |