Stadium: Court 8 Round: 25 Ground: Hardcourt outdoor
| ITF Turkey F22 | 2018/06/06 07:30 | Mert Naci Turker v C. Oosterbaan, Paul | 3-6,6-1,6-4 |
| ITF Turkey F22 | 2018/06/04 07:30 | Irigaray Guarne, Pablo v C. Oosterbaan, Paul | 2-6,6-3,1-6 |
| ITF Turkey F22 | 2018/06/03 07:30 | Gorgun, Omer Berk v C. Oosterbaan, Paul | 0-6,0-6 |
| ITF Turkey F21 Qual | 2018/05/28 07:30 | Aleksandre Metreveli v C. Oosterbaan, Paul | 3-6,6-4,6-2 |
| ITF Turkey F21 Qual | 2018/05/27 09:00 | Tadas Babelis v C. Oosterbaan, Paul | 4-6,4-6 |
| ITF Turkey F21 Qual | 2018/05/26 10:00 | Pirolt, Pietro v C. Oosterbaan, Paul | 1-6,2-6 |
| Challenger Savannah Qual | 2018/04/29 14:00 | C. Oosterbaan, Paul v Redlicki, Michael | 3-6,6-3,6-7 |
| Challenger Savannah Qual | 2018/04/28 14:00 | Stice, Tyler v C. Oosterbaan, Paul | 5-7,6-2,1-6 |
| ITF Tunisia F20 | 2018/05/23 09:00 | Day, Alexander v Rotsaert, Alexandre | 3-6,0-6 |
| Tunisia F19, Singles Qualifying | 2018/05/17 10:50 | Vivero Gonzalez, Pablo v Day, Alexander | 6-2,6-0 |
| Tunisia F19, Singles Qualifying | 2018/05/15 09:00 | Day, Alexander v Rousseau, Hillel | 6-3,6-3 |
| Tunisia F18, Singles Qualifying | 2018/05/10 11:50 | Petit, Gabriel v Day, Alexander | 6-3,6-4 |
| Tunisia F18, Singles Qualifying | 2018/05/08 11:00 | Day, Alexander v Papounidis, Ioannis | 6-4,6-4 |
| Tunisia F17, Singles Qualifying | 2018/05/01 10:35 | Saraiva, Bernardo v Day, Alexander | 6-1,6-1 |
| ITF USA F8 Qual | 2018/03/17 17:00 | Day, Alexander v Harrison Adams | 6-4,3-6,4-6 |
| ITF Qatar F5 Qual | 2017/12/10 12:00 | Damiens, Antoine v Day, Alexander | 7-6,6-4 |