Stadium: V1 Round: 26 Ground: Hardcourt outdoor
| ITF Women Jackson Qual | 2018/04/02 16:30 | Catherine Harrison v Douglas, Ellie | 6-3,4-6,6-4 |
| ITF W25 Fort Worth | 2019/07/31 14:00 | Arianne Hartono v Douglas, Ellie | 7-5,4-6,5-7 |
| ITF W25 Evansville | 2019/07/25 15:00 | Douglas, Ellie v Contreras Gomez, Fernanda | 4-6,7-6,2-6 |
| ITF W25 Evansville | 2019/07/24 17:25 | Hart, Jada Myii v Douglas, Ellie | 6-7,5-7 |
| ITF W60 Berkeley | 2019/07/15 22:40 | Mai Hontama v Douglas, Ellie | 6-1,6-1 |
| Honolulu, Simples W-ITF-USA-20A | 2019/07/08 21:40 | Giuliana Olmos v Douglas, Ellie | 6-2,6-3 |
| Denver, Singles Qualifying W-ITF-USA-28A | 2019/06/19 18:00 | Arshinkova, Petia v Douglas, Ellie | 6-3,6-4 |
| Denver, Singles Qualifying W-ITF-USA-28A | 2019/06/18 20:45 | Douglas, Ellie v Payton Andrews | 6-1,6-0 |
| ITF W25 Sumter | 2019/06/13 14:00 | Dea Herdzelas v Douglas, Ellie | 7-5,6-3 |
| ITF W25 Fort Worth | 2019/07/31 22:50 | McCartney Kessler v Catherine Harrison | 1-6,2-6 |
| Ashland, Simples W-ITF-USA-23A | 2019/07/25 14:00 | Catherine Harrison v Perez, Ellen | 6-1,3-6,2-6 |
| Ashland, Simples W-ITF-USA-23A | 2019/07/24 16:45 | Okuno, Ayaka v Catherine Harrison | 4-6,2-6 |
| ITF W60 Berkeley | 2019/07/16 19:00 | Catherine Harrison v Hanna Chang | 3-6,4-6 |
| ITF W60 Berkeley | 2019/07/15 21:05 | Catherine Harrison v Dabin Kim | 6-1,6-3 |
| Honolulu, Simples W-ITF-USA-20A | 2019/07/09 23:30 | Arina Rodionova v Catherine Harrison | 6-4,6-2 |
| Hong Kong, Simples W-ITF-HKG-01B | 2019/06/01 02:00 | Jia-Jing Lu v Catherine Harrison | 6-2,6-4 |
| Hong Kong, Simples W-ITF-HKG-01B | 2019/05/31 08:20 | Jia-Jing Lu v Catherine Harrison | 6-2,5-4 |