Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| Rancho Santa Fe, Ca, Singles W-ITF-USA-05A | 2019/02/19 19:30 | Guillermo, Lorraine M v Kayla Day | 1-6,3-6 |
| Surprise, Singles W-ITF-USA-04A | 2019/02/11 16:00 | Guillermo, Lorraine M v Hanna Chang | 6-3,2-6,4-10 |
| ITF Women Norman | 2018/11/16 18:55 | Guillermo, Lorraine M v Yuriko Lily Miyazaki | 5-7,7-5,1-6 |
| ITF Women Norman | 2018/11/15 18:20 | Nadia Podoroska v Guillermo, Lorraine M | 1-6,6-3,5-7 |
| ITF Women Norman | 2018/11/13 20:25 | Hanna Chang v Guillermo, Lorraine M | 4-6,4-6 |
| ITF Women Lawrence | 2018/11/03 16:00 | Guillermo, Lorraine M v Subhash, Natasha | 5-7,3-6 |
| ITF Women Toronto | 2018/10/28 14:00 | Shaffer, Kennedy v Guillermo, Lorraine M | 6-4,6-3 |
| ITF Women Toronto | 2018/10/27 16:35 | Tanasescu, Maria v Guillermo, Lorraine M | 1-6,1-6 |
| ITF - W15 Monastir | 2019/02/04 08:00 | Westby, Madison v Timsit, Agathe | 7-5,1-6,7-10 |
| ITF - W15 Monastir | 2019/01/29 09:00 | Westby, Madison v Dentoni, Corinna | 2-6,4-6 |
| ITF - W15 Monastir | 2019/01/24 09:30 | Mirjam Bjorklund v Westby, Madison | 6-1,6-1 |
| ITF - W15 Monastir | 2019/01/23 10:50 | Milosevic, Tamara v Westby, Madison | 2-6,2-6 |
| ITF - W15 Monastir | 2019/01/15 09:40 | Westby, Madison v Amy Zhu | 4-6,6-4,4-6 |
| ITF Women Stellenbosch | 2018/12/07 09:00 | Lindh Gallagher, Emilie v Westby, Madison | 6-3,6-2 |
| ITF Women Stellenbosch | 2018/12/06 07:00 | Peer, Andrina v Westby, Madison | 6-4,1-6,1-6 |
| ITF Women Stellenbosch | 2018/12/04 07:00 | Wira, Klaudia v Westby, Madison | 0-6,3-6 |