Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF Women Monastir | 2018/11/15 08:00 | Karregat, Dominique v Lee, Sarah | 3-6,6-4,6-2 |
| ITF Women Monastir | 2018/11/11 08:30 | Jacqueline Cabaj Awad v Lee, Sarah | 5-7,6-3,6-4 |
| ITF Women Monastir | 2018/11/10 10:00 | Tamara Curovic v Lee, Sarah | 1-6,6-4,6-7 |
| ITF Women Monastir | 2018/11/09 08:30 | Lee, Sarah v Rajkovic, Adriana | 6-2,6-1 |
| ITF Women Monastir | 2018/11/08 08:00 | Lindh Gallagher, Emilie v Lee, Sarah | 4-6,4-6 |
| ITF Women Monastir | 2018/11/06 08:00 | Lee, Sarah v Fritsch, Celine | 6-1,6-2 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/10/16 07:00 | Tatarus, Gabriela Nicole v Lee, Sarah | 0-6,6-3,7-5 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/10/15 07:00 | Lee, Sarah v Senkarova, Adriana | 7-5,6-4 |
| Petit-Bourg, Singles Qualifying W-ITF-FRA-02A | 2019/01/14 19:15 | Verena Meliss v Leduc, Catherine | 6-1,6-7,10-7 |
| ITF Women Las Vegas | 2018/11/04 19:15 | Marand, Sanaz v Leduc, Catherine | 6-0,6-1 |
| ITF Women Toronto | 2018/10/31 14:00 | Leduc, Catherine v Conny Perrin | 0-6,1-6 |
| ITF Women Saguenay | 2018/10/20 21:10 | Leduc, Catherine v Shah, Priyanka | 3-6,3-6 |
| WTA Montreal Qual | 2018/08/04 18:30 | Leduc, Catherine v Dalila Jakupovic | 2-6,2-6 |
| ITF Women Granby Qual | 2018/07/22 19:50 | Leduc, Catherine v Nagi Hanatani | 2-6,7-5,2-6 |
| ITF Women Granby Qual | 2018/07/21 15:05 | Leduc, Catherine v Vagramov, Alexandra | 6-4,7-6 |
| ITF Women Gatineau | 2018/07/17 20:00 | Rebecca Marino v Leduc, Catherine | 6-2,6-4 |