Stadium: Court 3 Round: 25 Ground: Clay
| ITF Women Tyler | 2018/10/29 15:00 | Douglas, Ellie v Hanna Chang | 6-2,6-3 |
| Irapuato, Singles W-WITF-MEX-01A | 2017/04/10 16:00 | Douglas, Ellie v Hanna Chang | 6-2,3-6,6-4 |
| ITF W25 Evansville | 2021/07/14 14:15 | Hanna Chang v Katrina Scott | 4-6,0-6 |
| ITF W60 Charleston | 2021/06/24 15:00 | Hanna Chang v Ana Sofia Sanchez | 6-2,3-6,2-6 |
| ITF W60 Charleston | 2021/06/23 13:20 | Hanna Chang v Peyton Stearns | 7-6,6-4 |
| ITF W25 Santo Domingo | 2021/06/10 13:00 | Hanna Chang v Maria Lourdes Carle | 3-6,6-1,4-6 |
| ITF W25 Santo Domingo | 2021/06/08 20:25 | Hanna Chang v Rivera Corado | 6-1,6-0 |
| ITF W25 Santo Domingo | 2021/06/03 17:05 | Maria Lourdes Carle v Hanna Chang | 6-2,6-1 |
| ITF W25 Santo Domingo | 2021/06/03 13:00 | Carolina Alves v Hanna Chang | 4-6,4-6 |
| ITF W25 Pelham | 2021/05/20 17:05 | Panna Udvardy v Hanna Chang | 6-1,6-3 |
| ITF W25 Evansville | 2021/07/17 16:00 | Rebecca Marino v Douglas, Ellie | 6-4,6-1 |
| ITF W25 Evansville | 2021/07/16 14:00 | Douglas, Ellie v Aldila Sutjiadi | 6-3,3-6,7-5 |
| ITF W25 Evansville | 2021/07/15 16:05 | Maria Mateas v Douglas, Ellie | 5-7,3-6 |
| ITF W25 Evansville | 2021/07/14 17:50 | Douglas, Ellie v Carmen Corley | 6-2,6-2 |
| ITF W60 Charleston | 2021/06/22 14:00 | Louisa Chirico v Douglas, Ellie | 6-4,6-4 |
| ITF W60 Charleston | 2021/06/21 13:55 | Carrington, Safiya v Douglas, Ellie | 0-6,6-7 |
| ITF W25 Sumter | 2021/06/17 16:15 | Douglas, Ellie v Alycia Parks | 6-7,2-6 |
| ITF W25 Sumter | 2021/06/16 14:00 | Ivana Corley v Douglas, Ellie | 2-6,1-6 |