Stadium: Court N5 Round: 26 Ground: Clay
| Challenger Irving Qual | 2018/03/12 17:30 | Arthur Rinderknech v Jonathan Chang | 6-1,6-4 |
| ITF Canada F2 Qual | 2018/03/04 15:00 | Deiton Baughman v Jonathan Chang | 6-1,6-1 |
| ITF Canada F2 Qual | 2018/03/03 15:00 | Jonathan Chang v Julian Zlobinsky | 6-4,3-6,3-6 |
| ITF Canada F1 | 2018/03/01 00:00 | Jonathan Chang v Frank Dancevic | 2-6,6-7 |
| ITF Canada F1 Qual | 2018/02/26 15:00 | Sem Verbeek v Jonathan Chang | 5-7,6-3,4-6 |
| ITF Canada F1 Qual | 2018/02/25 15:00 | Emmett Ward v Jonathan Chang | 2-6,4-6 |
| ITF Germany F3 Qual | 2018/01/28 13:00 | Nikolas Walterscheid-Tukic v Jonathan Chang | 6-7,6-4,7-6 |
| ITF Germany F2 Qual | 2018/01/21 13:00 | Tim Heger v Jonathan Chang | 7-6,6-4 |
| Davis Cup | 2018/04/06 08:00 | Romain Arneodo v Petros Chrysochos | 6-3,1-6,3-6 |
| Davis Cup | 2018/04/05 08:00 | Petros Chrysochos v Antoine Barbieri | 6-1,6-0 |
| Davis Cup | 2018/04/04 08:00 | Petros Chrysochos v Guillermo Jauregui | 6-0,6-0 |
| Challenger Irving | 2018/03/16 18:00 | Marton Fucsovics v Petros Chrysochos | 6-3,6-3 |
| Challenger Irving | 2018/03/15 18:00 | Arthur Rinderknech v Petros Chrysochos | 3-6,6-4,2-6 |
| Challenger Irving | 2018/03/14 20:00 | Petros Chrysochos v Thomas Fabbiano | 2-6,7-5,6-2 |
| Challenger Irving Qual | 2018/03/12 20:45 | Tigre Hank v Petros Chrysochos | 2-6,1-6 |
| Challenger Irving Qual | 2018/03/12 16:00 | Petros Chrysochos v Hans Hach Verdugo | 6-7,6-2,7-5 |