Stadium: Centre Court Round: 54 Ground: Hardcourt indoor
| Challenger Marburg Qual | 2018/06/30 12:40 | Johannes Haerteis v Daniel Masur | 4-6,4-6 |
| Challenger L'Aquila | 2018/06/19 10:00 | Johannes Haerteis v Riccardo Balzerani | 6-4,2-6,4-6 |
| Challenger L'Aquila Qual | 2018/06/18 09:55 | Zhizhen Zhang v Johannes Haerteis | 5-7,6-7 |
| Challenger L'Aquila Qual | 2018/06/17 13:30 | Johannes Haerteis v Liam Caruana | 7-6,6-0 |
| Challenger L'Aquila Qual | 2018/06/16 14:25 | Johannes Haerteis v Jordan Correia | 1-6,7-6,7-6 |
| ITF Italy F14 | 2018/06/13 14:20 | Riccardo Bellotti v Johannes Haerteis | 6-3,6-2 |
| ITF Italy F14 | 2018/06/12 18:25 | Lorenzo Frigerio v Johannes Haerteis | 7-5,2-6,4-6 |
| ITF Italy F14 Qual | 2018/06/10 08:30 | Johannes Haerteis v Alessandro Ceppellini | 6-2,6-0 |
| Challenger Poprad Tatry | 2018/06/19 09:25 | Ante Pavic v Maximilian Neuchrist | 4-6,2-6 |
| Challenger Almaty | 2018/06/13 06:25 | Ante Pavic v Pedja Krstin | 4-6,2-6 |
| Challenger Almaty | 2018/06/11 06:40 | Ante Pavic v Ivan Nedelko | 6-1,6-3 |
| Challenger Shymkent | 2018/06/06 10:10 | Ante Pavic v Hugo Dellien | 2-6,4-6 |
| Challenger Shymkent | 2018/06/04 07:05 | Ante Pavic v Aldin Setkic | 6-2,6-4 |
| Challenger Vicenza Qual | 2018/05/26 09:35 | Frank Dancevic v Ante Pavic | 6-3,7-5 |
| Challenger Loughborough | 2018/05/22 14:15 | Ante Pavic v Teymuraz Gabashvili | 4-6,4-6 |
| Challenger Puerto Vallarta | 2018/05/03 21:00 | Danilo Petrovic v Ante Pavic | 6-3,6-2 |