Stadium: Court 1 Round: 25 Ground: Hardcourt indoor
| ITF USA F20 | 2018/07/24 15:00 | Guy Orly Iradukunda v Dunbar, Jacob | 4-6,1-6 |
| ITF M15 East Lansing | 2019/11/22 17:00 | Cannon Kingsley v Dunbar, Jacob | 6-3,5-7,6-4 |
| ITF M15 East Lansing | 2019/11/21 18:25 | Hinsching, Joao v Dunbar, Jacob | 1-6,3-6 |
| ITF M15 East Lansing | 2019/11/20 20:40 | Dunbar, Jacob v Sigouin, Benjamin | 7-5,6-1 |
| Challenger Charlottesville | 2019/10/29 14:00 | King, Kevin v Dunbar, Jacob | 6-3,6-4 |
| Challenger Charlottesville | 2019/10/28 14:00 | Novikov, Dennis v Dunbar, Jacob | 7-5,1-6,5-7 |
| Fayetteville, AR, Singles Qualifying, M-ITF-USA-31 | 2019/10/25 18:00 | Dunbar, Jacob v Redlicki, Michael | 3-6,2-6 |
| Fayetteville, AR, Singles Qualifying, M-ITF-USA-31 | 2019/10/24 15:00 | Mesquida Berg, Oscar v Dunbar, Jacob | 3-6,3-6 |
| Fayetteville, AR, Singles Qualifying, M-ITF-USA-31 | 2019/10/23 20:15 | Dunbar, Jacob v Kirkov, Vasil | 3-6,6-2,6-1 |
| ITF - M15 Monastir | 2019/11/20 08:30 | Zizou Bergs v Guy Orly Iradukunda | 6-2,6-7,6-2 |
| ITF - M15 Monastir | 2019/11/13 10:35 | Oscar Moraing v Guy Orly Iradukunda | 4-6,7-5,7-5 |
| ITF - M15 Monastir | 2019/11/05 08:20 | Guy Orly Iradukunda v Alexander Donski | 2-6,5-7 |
| ITF M25 Monastir | 2019/10/27 15:30 | Guy Orly Iradukunda v Theo Arribage | 6-4,1-6,8-10 |
| ITF M25 Monastir | 2019/10/21 09:00 | Guy Orly Iradukunda v Nagoudi, Adam | 3-6,7-5,10-12 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/09/20 08:30 | Guy Orly Iradukunda v Bogdan Bobrov | 3-6,3-6 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/09/19 10:45 | Guy Orly Iradukunda v Henri Squire | 6-2,6-0 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/09/18 14:30 | Guy Orly Iradukunda v Francesco Liucci | 6-4,6-4 |