Stadium: Center Court Round: 28 Ground: Carpet indoor
| ITF Italy F14 Qual | 2018/06/09 07:00 | Johannes Haerteis v Janis Podzus | 6-2,5-7,6-1 |
| Challenger Loughborough Qual | 2018/05/21 09:30 | Johannes Haerteis v Frederik Nielsen | 6-7,1-6 |
| Challenger Loughborough Qual | 2018/05/20 09:30 | Viktor Durasovic v Johannes Haerteis | 6-7,5-7 |
| Challenger Loughborough Qual | 2018/05/19 11:10 | Johannes Haerteis v Sean Hodkin | 6-3,6-7,6-4 |
| ITF Israel F6 | 2018/05/11 07:30 | Johannes Haerteis v Matias Franco Descotte | 2-6,4-6 |
| ITF Israel F6 | 2018/05/08 11:30 | Johannes Haerteis v Uri Vodavoz | 6-0,6-1 |
| ITF Israel F5 | 2018/05/04 07:30 | Johannes Haerteis v Matias Franco Descotte | 3-6,2-6 |
| ITF Israel F5 | 2018/05/03 07:30 | Nicolas Uryson v Johannes Haerteis | 6-7,1-6 |
| Challenger Prostejov | 2018/06/05 10:35 | Guillermo Garcia-Lopez v Gleb Sakharov | 6-4,6-4 |
| Challenger Vicenza | 2018/05/29 09:00 | Martin Cuevas v Gleb Sakharov | 7-6,6-2 |
| French Open Qual | 2018/05/21 13:10 | Jurgen Melzer v Gleb Sakharov | 6-2,4-6,6-1 |
| Challenger Lisbon | 2018/05/14 11:30 | Christian Harrison v Gleb Sakharov | 6-0,6-4 |
| Challenger Braga | 2018/05/09 11:00 | Sergio Gutierrez-Ferrol v Gleb Sakharov | 6-3,6-4 |
| Challenger Braga | 2018/05/07 12:20 | Joao Monteiro v Gleb Sakharov | 6-2,3-6,2-6 |
| Challenger Ostrava | 2018/05/01 09:00 | Gleb Sakharov v Gianluigi Quinzi | 2-6,1-6 |
| ATP Miami Qual | 2018/03/19 16:20 | Gleb Sakharov v Ernesto Escobedo | 0-6,3-6 |