Stadium: Court 1 Round: 54
| ITF Women Le Havre Qual | 2018/03/18 13:25 | Emmanuelle Girard v Thebault, Esther | 6-7,6-4,7-5 |
| ITF Women Saint Malo Qual | 2017/09/17 09:00 | Zimmermann, Kimberley v Thebault, Esther | 6-0,6-2 |
| ITF Women Caslano | 2017/08/19 11:00 | Valero, Juliana v Thebault, Esther | 5-7,6-1,6-4 |
| ITF Women Le Havre Qual | 2017/03/19 09:00 | Meers, Luna v Thebault, Esther | 6-2,6-2 |
| Gonesse, Singles Qualifying W-WITF-FRA-06A | 2017/03/11 10:50 | Thebault, Esther v Margaux Rouvroy | 3-6,2-6 |
| Amiens, Singles Qualifying W-WITF-FRA-09A | 2017/03/04 09:00 | Thebault, Esther v Kolb, Nadya | 0-6,2-6 |
| Palmanova (Majorque), Qual. Simples W-WITF-ESP-03A | 2017/02/26 09:00 | Said, Dalila v Thebault, Esther | 6-1,6-2 |
| Palmanova, Qualifications Simples W-WITF-ESP-03A | 2017/02/11 08:00 | Gonzalez Ballbe, Marta v Thebault, Esther | 6-1,6-2 |
| ITF Women Ilkley Qual | 2018/06/17 10:00 | Bibiane Schoofs v Guarachi Mathison, Alexa | 6-4,1-6,6-3 |
| ITF Women Charleston Qual | 2018/05/01 14:00 | Camilla Rosatello v Guarachi Mathison, Alexa | 6-4,4-6,6-4 |
| ITF Women Charleston Qual | 2018/04/30 15:45 | Jada Robinson v Guarachi Mathison, Alexa | 4-6,2-6 |
| ITF Women Charleston Qual | 2018/04/29 18:40 | Weinhold, Ashley v Guarachi Mathison, Alexa | 1-6,4-6 |
| ITF Women Charlottesville Qual | 2018/04/22 19:25 | Whitney Osuigwe v Guarachi Mathison, Alexa | 6-4,6-1 |
| ITF Women Dothan Qual | 2018/04/15 22:30 | Goncalves, Paula Cristina v Guarachi Mathison, Alexa | 7-6,7-6 |
| ITF Women Pelham | 2018/04/14 15:00 | Guarachi Mathison, Alexa v Allie Kiick | 4-6,3-6 |
| ITF Women Pelham | 2018/04/13 16:00 | Guarachi Mathison, Alexa v Maria Mateas | 6-3,6-2 |