| ITF Switzerland F3 Qual | 2017/08/12 07:00 | Douglas, Jake v Гишо, Максим | 6-1,6-2 |
| ITF Canada F4 | 2017/07/05 16:30 | Douglas, Jake v Алексиос Халебиан | 3-6,4-6 |
| USA F1, Singles Qualifying | 2016/12/31 16:00 | Douglas, Jake v Лукас Ренард | 6-7,4-6 |
| ITF USA F37 | 2016/11/11 20:30 | Douglas, Jake v Страхиня Джордже Ракич | 6-1,2-6,5-7 |
| ITF USA F34 | 2016/10/22 20:00 | Ton, Andrew v Douglas, Jake | 7-6,0-6,6-2 |
| ITF USA F29 | 2016/09/21 17:00 | Мартин Редлики v Douglas, Jake | 6-0,6-3 |
| ITF USA F29 | 2016/09/18 18:30 | Rivera, Cristobal v Douglas, Jake | 3-6,4-6 |
| ITF USA F29 | 2016/09/16 23:00 | Vance, Jack v Douglas, Jake | 1-6,1-6 |