Stadium: Court 2 Round: 27
| ITF Women Braunschweig | 2018/08/23 12:00 | Saez Larra, Olga v Maria F Herazo Gonzalez | 6-4,7-5 |
| ITF Women Braunschweig | 2018/08/22 12:25 | Saez Larra, Olga v Panova, Alexandra | 6-2,7-6 |
| ITF Women LPD Gran Canaria | 2018/08/16 12:00 | Saez Larra, Olga v Chloe Paquet | 2-6,1-6 |
| ITF Women LPD Gran Canaria | 2018/08/15 09:00 | Saez Larra, Olga v Reka-Luca Jani | 6-2,6-0 |
| ITF Women LPD Gran Canaria | 2018/08/13 14:30 | Saez Larra, Olga v Soylu, Ipek | 7-5,7-6 |
| El Espinar, Singles W-WITF-ESP-14A | 2018/08/01 16:15 | Andrea Lazaro Garcia v Saez Larra, Olga | 7-5,4-6,6-3 |
| El Espinar, Singles W-WITF-ESP-14A | 2018/07/31 11:10 | Eklund, Mia v Saez Larra, Olga | 1-6,1-6 |
| ITF Women Porto | 2018/07/28 10:00 | Jil Teichmann v Saez Larra, Olga | 6-2,6-4 |
| ITF Women Braunschweig | 2018/08/23 14:00 | Alexandra Vecic v Arn, Greta | 6-7,0-6 |
| ITF Women Braunschweig | 2018/08/21 12:35 | Arn, Greta v Burger, Cindy | 7-5,6-3 |
| WTA Gstaad Qual | 2018/07/14 15:50 | Arn, Greta v Allie Kiick | 2-6,2-6 |
| ITF Women Budapest | 2018/07/09 11:00 | Tena Lukas v Arn, Greta | 6-2,6-4 |
| Indian Harbour Beach, Simples W-WITF-USA-10A | 2018/04/11 17:40 | Ons Jabeur v Arn, Greta | 6-3,6-0 |
| WTA Charleston Qual | 2018/03/31 19:15 | Garcia Perez, Georgina v Arn, Greta | 6-2,7-6 |
| ITF Women Dubai Qual | 2017/12/11 06:30 | Fanny Stollar v Arn, Greta | 6-3,5-7,6-3 |
| ITF Women Dubai Qual | 2017/12/10 06:00 | Arn, Greta v Valeria Savinykh | 6-3,6-4 |