Stadium: Center Round: 26 Ground: Hardcourt indoor
| Challenger St Brieuc Qual | 2017/03/26 12:30 | David Guez v Matthias Bachinger | 6-3,6-4 |
| Challenger Segovia | 2015/08/04 09:40 | David Guez v Matthias Bachinger | 6-4,6-3 |
| Challenger Lille | 2018/03/21 09:30 | David Guez v Goncalo Oliveira | 6-1,3-6,6-3 |
| Challenger Lille Qual | 2018/03/19 09:30 | David Guez v Sadio Doumbia | 6-3,6-3 |
| Challenger Lille Qual | 2018/03/18 10:00 | David Guez v Nikola Cacic | 6-1,6-7,6-3 |
| Challenger Lille Qual | 2018/03/17 10:45 | David Guez v Quentin Gueydan | 6-1,6-4 |
| ITF France F4 | 2018/03/10 15:50 | Botic Van De Zandschulp v David Guez | 2-6,7-6,6-3 |
| ITF France F4 | 2018/03/09 14:25 | Laurent Rochette v David Guez | 3-6,3-6 |
| ITF France F4 | 2018/03/08 11:00 | Enzo Couacaud v David Guez | 4-6,2-6 |
| ITF France F4 | 2018/03/07 11:00 | Gabriel Petit v David Guez | 5-7,1-6 |
| ATP Dubai Qual | 2018/02/24 07:00 | Quentin Halys v Matthias Bachinger | 6-4,6-1 |
| ATP Marseille Qual | 2018/02/18 11:40 | Sergiy Stakhovsky v Matthias Bachinger | 1-6,6-1,7-5 |
| ATP Rotterdam Qual | 2018/02/10 12:50 | Matthias Bachinger v Ricardas Berankis | 5-7,2-6 |
| Challenger Dallas | 2018/02/01 01:00 | Kei Nishikori v Matthias Bachinger | 4-6,6-4,6-4 |
| Challenger Dallas | 2018/01/30 20:15 | Matthias Bachinger v Evgeny Karlovskiy | 2-6,6-3,6-4 |
| Challenger Newport Beach | 2018/01/26 19:35 | Reilly Opelka v Matthias Bachinger | 7-5,6-4 |
| Challenger Newport Beach | 2018/01/25 19:50 | Filip Peliwo v Matthias Bachinger | 3-6,6-7 |
| Challenger Newport Beach | 2018/01/23 19:40 | Matthias Bachinger v Ernesto Escobedo | 6-3,7-6 |