Stadium: Court 1 Round: 64
| Challenger - Surbiton | 2018/06/07 10:00 | Denis Kudla v Lacko, Lukas | 6-4,6-0 |
| Challenger - Surbiton | 2018/06/04 14:35 | Novikov, Dennis v Lacko, Lukas | 6-4,1-6,5-7 |
| Challenger Loughborough | 2018/05/23 11:00 | Lacko, Lukas v Yosuke Watanuki | 3-6,5-7 |
| Challenger - Glasgow | 2018/05/06 12:00 | Lacko, Lukas v Vanni, Luca | 4-6,7-6,6-4 |
| Challenger - Glasgow | 2018/05/05 10:00 | Lacko, Lukas v Guez, David | 6-3,6-4 |
| Challenger - Glasgow | 2018/05/04 09:30 | Lacko, Lukas v Olaso, Guillermo | 6-2,6-3 |
| Challenger - Glasgow | 2018/05/03 12:00 | Lacko, Lukas v Hiroki Moriya | 6-1,6-4 |
| Challenger - Glasgow | 2018/05/02 12:30 | Lacko, Lukas v Joris De Loore | 6-4,6-4 |
| Challenger Loughborough | 2018/05/24 11:30 | Puetz, Tim v Hiroki Moriya | 5-7,0-6 |
| Challenger Loughborough | 2018/05/22 09:00 | Puetz, Tim v Marek Jaloviec | 7-6,6-1 |
| Challenger - Heilbronn | 2018/05/17 12:50 | Oscar Otte v Puetz, Tim | 7-5,6-7,7-6 |
| Challenger - Heilbronn | 2018/05/15 18:05 | Puetz, Tim v Norbert Gombos | 6-4,4-6,6-3 |
| ATP Munich Qual | 2018/04/28 11:05 | Marius Copil v Puetz, Tim | 6-3,6-2 |
| Challenger Yokohama | 2018/02/27 02:20 | Duckhee Lee v Puetz, Tim | 4-6,6-4,6-3 |
| Kyoto, Japan | 2018/02/24 02:30 | Puetz, Tim v Jordan Thompson | 6-3,5-7,4-6 |
| Kyoto, Japan | 2018/02/23 02:30 | Kamke, Tobias v Puetz, Tim | 4-6,0-6 |