Stadium: Court 3 Round: 62 Ground: Clay
| ITF Finland F3 | 2017/08/14 10:00 | Roberto Marcora v Kristofer Siimar | 6-1,6-4 |
| ITF Finland F1 | 2017/08/01 09:40 | Axel Michon v Kristofer Siimar | 5-7,7-6,6-0 |
| ITF Estonia F1 | 2017/07/25 09:25 | Marc Dijkhuizen v Kristofer Siimar | 6-1,7-5 |
| ITF Poland F4 Qual | 2017/07/02 13:00 | Mattias Siimar v Kristofer Siimar | 6-3,7-5 |
| ITF Poland F3 Qual | 2017/06/25 08:00 | Lev Kazakov v Kristofer Siimar | 7-5,6-3 |
| ITF Poland F1 | 2017/06/11 08:00 | Kristofer Siimar v Linus Frost | 1-6,6-3,0-6 |
| Davis Cup | 2017/04/09 11:10 | Kristofer Siimar v Thomas Oger | 4-6,4-6 |
| ITF Estonia F3 | 2016/11/01 13:25 | Kristofer Siimar v Vladimir Ivanov | 0-6,4-6 |
| ITF Spain F11 | 2018/05/15 11:30 | Javier Barranco Cosano v Harrison Lombe | 6-2,7-6 |
| ITF Egypt F17 | 2018/05/08 07:30 | Harrison Lombe v Marco Bortolotti | 4-6,6-7 |
| ITF Egypt F17 | 2018/05/06 08:00 | Harrison Lombe v Ashraf El Sayed | 6-1,6-1 |
| ITF Egypt F16 | 2018/04/28 09:00 | Harrison Lombe v Boris Butulija | 4-6,6-2,4-6 |
| ITF Israel F3 | 2018/03/18 08:00 | Alexandr Chepelev v Harrison Lombe | 3-6,6-3,6-2 |
| ITF Israel F2 | 2018/03/11 07:30 | Davide Albertoni v Harrison Lombe | 7-6,6-1 |
| ITF Greece F2 | 2018/03/03 07:30 | Enrico Dalla Valle v Harrison Lombe | 6-0,6-4 |
| ITF Greece F1 | 2018/02/25 09:00 | Jeremy Sonkin v Harrison Lombe | 6-2,6-7,6-3 |