Stadium: Centre Court Round: 26 Ground: Hardcourt outdoor
| Challenger Canberra 2 | 2018/10/29 01:55 | Thomas Fancutt v Sadio Doumbia | 6-4,4-6,2-6 |
| Challenger Traralgon | 2018/10/25 01:50 | Sadio Doumbia v Yoshihito Nishioka | 1-6,4-6 |
| Challenger Traralgon | 2018/10/23 03:05 | Sadio Doumbia v Yosuke Watanuki | 3-6,6-3,6-3 |
| ITF Lebanon F2 | 2018/10/05 13:00 | Jaroslav Pospisil v Sadio Doumbia | 6-2,1-6,7-5 |
| ITF Lebanon F2 | 2018/10/04 13:00 | Giovani Samaha v Sadio Doumbia | 0-6,3-6 |
| ITF Lebanon F2 | 2018/10/03 13:00 | Federico Bertuccioli v Sadio Doumbia | 2-6,1-6 |
| ITF Lebanon F1 | 2018/09/27 13:00 | Edoardo Eremin v Sadio Doumbia | 6-3,3-6,6-3 |
| ITF Lebanon F1 | 2018/09/26 13:00 | Mousa Alkotop v Sadio Doumbia | 1-6,1-6 |
| Challenger Canberra 2 | 2018/10/29 03:55 | Jacob Grills v Hiroki Moriya | 4-6,6-4,6-1 |
| Challenger Traralgon | 2018/10/22 02:20 | Sebastian Fanselow v Jacob Grills | 6-3,6-3 |
| ITF Australia F8 | 2018/10/12 00:00 | Maverick Banes v Jacob Grills | 6-4,6-2 |
| ITF Australia F8 | 2018/10/11 05:20 | Michael Look v Jacob Grills | 6-7,1-6 |
| ITF Australia F8 | 2018/10/10 01:00 | Jesse Flores v Jacob Grills | 6-7,1-6 |
| ITF Australia F6 | 2018/09/28 02:35 | Brydan Klein v Jacob Grills | 6-7,5-7 |
| ITF Australia F6 | 2018/09/27 05:00 | Matthew Romios v Jacob Grills | 2-6,6-2,1-6 |
| ITF Australia F6 | 2018/09/26 02:50 | Dusty H. Boyer v Jacob Grills | 7-6,5-7,3-6 |