Stadium: Court 3 Round: 54 Ground: Hardcourt outdoor
| Honolulu, Simples W-ITF-USA-20A | 2019/07/09 00:40 | Tori Kinard v Guillermo, Lorraine M | 2-6,6-0,10-8 |
| Denver, Singles Qualifying W-ITF-USA-28A | 2019/06/19 16:00 | Guillermo, Lorraine M v Chieh-Yu Hsu | 4-6,4-6 |
| Nonthaburi, Singles W-ITF-THA-01A | 2019/05/28 05:30 | Guillermo, Lorraine M v Jandakate, Chompoothip | 4-6,5-7 |
| Nonthaburi, Singles W-ITF-THA-01A | 2019/05/27 04:30 | Guillermo, Lorraine M v Runglerdkriangkrai, Apichaya | 6-0,6-1 |
| Nonthaburi, Singles W-ITF-THA-01A | 2019/05/21 07:45 | Peangtarn Plipuech v Guillermo, Lorraine M | 7-6,4-6,6-3 |
| Charlottesville, Simples W-ITF-USA-13A | 2019/04/24 14:00 | Emily Fanning v Guillermo, Lorraine M | 1-6,7-5,7-6 |
| ITF W25 Pelham | 2019/04/09 21:30 | Honcova, Michaela v Guillermo, Lorraine M | 7-6,6-3 |
| ITF W25 Pelham | 2019/04/08 20:00 | Guillermo, Lorraine M v Ksenia Laskutova | 6-2,6-0 |
| Honolulu, Simples W-ITF-USA-20A | 2019/07/09 20:40 | Sophie Chang v Carter, Hayley | 7-6,6-4 |
| Honolulu, Simples W-ITF-USA-20A | 2019/07/08 20:00 | Allura Zamarripa v Carter, Hayley | 3-6,0-6 |
| Denver, Singles Qualifying W-ITF-USA-28A | 2019/06/21 15:00 | Whittle, Sophia v Carter, Hayley | 6-1,6-4 |
| Denver, Singles Qualifying W-ITF-USA-28A | 2019/06/20 16:00 | Carter, Hayley v Mihalikova, Tereza | 6-4,1-6,7-5 |
| Denver, Singles Qualifying W-ITF-USA-28A | 2019/06/18 21:45 | Carson Branstine v Carter, Hayley | 4-6,7-6,3-6 |
| ITF W25 Sumter | 2019/06/13 14:25 | Carter, Hayley v Hailey Baptiste | 6-4,2-6,4-6 |
| ITF W25 Sumter | 2019/06/12 14:00 | Carter, Hayley v Boren, Brynn | 7-6,6-0 |
| Bethany Beach, Singles W-ITF-USA-17A | 2019/06/06 15:45 | Carter, Hayley v Sophie Chang | 5-7,1-6 |