Estádio: Court 1 Round: 46
| Challenger - Loughborough - Qualificação | 2018/05/19 17:20 | Igor Sijsling v Julian Ocleppo | 6-4,6-7,6-1 |
| Challenger - Heilbronn | 2018/05/17 11:00 | Igor Sijsling v Jiri Vesely | 3-6,6-4,2-6 |
| Challenger - Heilbronn - Qualificação | 2018/05/14 11:00 | Miliaan Niesten v Igor Sijsling | 3-6,2-6 |
| Challenger - Heilbronn - Qualificação | 2018/05/13 09:00 | Christoph Negritu v Igor Sijsling | 4-6,0-6 |
| Challenger - Glasgow | 2018/05/03 09:30 | Igor Sijsling v Roberto Ortega-Olmedo | 6-1,6-7,6-7 |
| Challenger - Glasgow | 2018/05/01 09:30 | Bernabe Zapata Miralles v Igor Sijsling | 1-6,3-6 |
| ITF - Portugal F8 | 2018/04/17 10:00 | Germain Gigounon v Igor Sijsling | 6-4,6-2 |
| ITF - Portugal F7 | 2018/04/12 17:40 | Germain Gigounon v Igor Sijsling | 6-4,6-3 |
| Challenger - Loughborough - Qualificação | 2018/05/19 17:35 | Peter Bothwell v Scott Duncan | 3-6,6-2,6-3 |
| ITF - Tunísia F17 | 2018/05/04 10:45 | Peter Bothwell v Maxime Tchoutakian | 6-4,2-6,6-7 |
| ITF - Tunísia F17 | 2018/05/03 10:40 | Peter Bothwell v Imran Aswat | 6-4,6-3 |
| ITF - Tunísia F17 | 2018/05/01 09:00 | Peter Bothwell v Vladislav Ivanov | 6-1,6-3 |
| ITF - Tunísia F16 | 2018/04/26 11:00 | Yannick Mertens v Peter Bothwell | 6-0,6-4 |
| ITF - Tunísia F16 | 2018/04/24 09:00 | Christopher Chien v Peter Bothwell | 0-6,0-6 |
| ITF - Tunísia F15 | 2018/04/19 09:00 | Daniel Brands v Peter Bothwell | 6-3,6-0 |
| ITF - Tunísia F15 | 2018/04/18 09:00 | Peter Bothwell v Darko Jandric | 1-6,6-3,6-1 |