Stadium: Court 5 Round: 24 Ground: Hardcourt outdoor
| Challenger Playford | 2019/01/01 04:45 | Sadio Doumbia v Rogerio Dutra Silva | 1-6,6-7 |
| Challenger Playford | 2018/12/31 02:45 | Sadio Doumbia v Max Purcell | 1-6,6-4,6-4 |
| ITF Tunisia F44 | 2018/12/12 09:00 | Sadio Doumbia v Riccardo Maiga | 6-2,4-6,4-6 |
| ITF Cameroon F2 | 2018/12/07 10:00 | Sadio Doumbia v Skander Mansouri | 4-6,4-6 |
| ITF Cameroon F2 | 2018/12/06 08:30 | Sadio Doumbia v Leny Mitjana | 6-3,7-5 |
| ITF Cameroon F2 | 2018/12/05 08:30 | Sadio Doumbia v Kunal Anand | 6-3,6-4 |
| ITF Cameroon F2 | 2018/12/04 08:30 | Sadio Doumbia v David Chaplefeh Forchap | 6-4,6-0 |
| ITF Cameroon F1 | 2018/11/29 09:50 | Sadio Doumbia v Igor Sao Thiago | 3-6,5-7 |
| Challenger Noumea | 2019/01/03 07:00 | Colin Sinclair v Mikael Ymer | 3-6,2-6 |
| Challenger Noumea | 2019/01/01 23:00 | Blaz Rola v Colin Sinclair | 5-7,4-6 |
| Challenger Noumea | 2018/12/31 01:15 | Maxime Chazal v Colin Sinclair | 4-6,4-6 |
| Australian Open WC | 2018/11/30 02:00 | Colin Sinclair v Ze Zhang | 1-6,1-6 |
| Australian Open WC | 2018/11/28 03:25 | Di Wu v Colin Sinclair | 2-6,3-6 |
| Challenger Kobe | 2018/11/14 02:00 | Aleksandar Vukic v Colin Sinclair | 6-1,6-1 |
| Challenger Kobe | 2018/11/12 02:00 | Blake Ellis v Colin Sinclair | 4-6,4-6 |
| Challenger Kobe | 2018/11/11 04:40 | Taisei Ichikawa v Colin Sinclair | 4-6,4-6 |