Round: 45 Ground: Hardcourt indoor
| WTA Limoges | 2018/11/05 20:30 | Ana Bogdan v Greta Arn | 6-2,7-5 |
| WTA Limoges | 2018/11/04 11:00 | Jana Cepelova v Greta Arn | 6-7,6-0,2-6 |
| WTA Limoges | 2018/11/03 13:00 | Claudia Coppola v Greta Arn | 0-6,4-6 |
| ITF Women Poitiers | 2018/10/20 13:35 | Eden Silva v Greta Arn | 7-6,6-4 |
| WTA Luxembourg | 2018/10/13 12:00 | Greta Arn v Jil Teichmann | 6-7,3-6 |
| ITF Women Clermont-Ferrand | 2018/09/29 12:00 | Greta Arn v Lesley Pattinama Kerkhove | 5-7,7-6,2-6 |
| ITF Women Clermont-Ferrand | 2018/09/28 09:30 | Greta Arn v Tess Sugnaux | 6-3,6-4 |
| ITF Women Clermont-Ferrand | 2018/09/27 14:30 | Tamara Korpatsch v Greta Arn | 6-1,4-6,4-6 |
| ITF Women Las Vegas | 2018/11/07 22:15 | Nicole Gibbs v Maria Sanchez | 7-5,6-0 |
| ITF Women Las Vegas | 2018/11/06 18:00 | Sanaz Marand v Maria Sanchez | 7-6,4-6,1-6 |
| ITF Women Las Vegas | 2018/11/05 20:15 | Rhiann Newborn v Maria Sanchez | 2-6,7-6,1-6 |
| ITF Women Las Vegas | 2018/11/04 23:50 | Ellie Douglas v Maria Sanchez | 3-6,4-6 |
| ITF Women Toronto | 2018/10/30 14:00 | Maria Sanchez v Jessika Ponchet | 0-6,1-6 |
| ITF Women Saguenay | 2018/10/25 17:35 | Maria Sanchez v Conny Perrin | 6-4,5-7,2-6 |
| ITF Women Saguenay | 2018/10/24 15:30 | Maria Sanchez v Maria Mateas | 6-2,6-4 |
| ITF Women Stockton | 2018/10/03 20:55 | Mari Osaka v Maria Sanchez | 6-1,6-3 |