Stadium: Indoor 1 Round: 26 Ground: Hardcourt outdoor
| ITF Women Lisbon | 2018/09/21 11:00 | Arn, Greta v Nuria Parrizas-Diaz | 2-6,6-3,7-5 |
| ITF W25 Roehampton | 2019/09/24 08:30 | Arn, Greta v Pitak, Aleksandra | 6-1,6-0 |
| Nanchang, Chine | 2019/09/09 08:30 | Kateryna Baindl v Arn, Greta | 6-2,6-1 |
| Nanchang, Chine | 2019/09/08 08:25 | Kaylah McPhee v Arn, Greta | 6-7,6-7 |
| Nanchang, Chine | 2019/09/07 08:35 | Ying Zhang v Arn, Greta | 2-6,2-6 |
| Chiswick, Singles W-ITF-GBR-09A | 2019/08/10 10:30 | Lesley Pattinama Kerkhove v Arn, Greta | 7-5,6-4 |
| Chiswick, Singles W-ITF-GBR-09A | 2019/08/09 12:10 | Pemra Ozgen v Arn, Greta | 2-6,3-6 |
| Chiswick, Singles W-ITF-GBR-09A | 2019/08/08 11:40 | Arn, Greta v Natalija Stevanovic | 6-2,6-4 |
| Chiswick, Singles W-ITF-GBR-09A | 2019/08/06 09:00 | Arn, Greta v Blake, Angelica | 7-5,6-4 |
| ITF W25 Roehampton | 2019/09/24 14:10 | Arlinda Rushiti v Nuria Parrizas-Diaz | 0-6,4-6 |
| ITF W25 Roehampton | 2019/09/21 10:00 | Anna-Lena Friedsam v Nuria Parrizas-Diaz | 2-6,7-5,5-7 |
| ITF W25 Roehampton | 2019/09/20 10:00 | Nuria Parrizas-Diaz v Heisen, Vivian | 7-5,6-2 |
| ITF W25 Roehampton | 2019/09/19 13:15 | Nuria Parrizas-Diaz v Indy De Vroome | 6-2,6-3 |
| ITF W25 Roehampton | 2019/09/18 09:30 | Nuria Parrizas-Diaz v Sarah Rebecca Sekulic | 6-0,6-3 |
| ITF W25 Roehampton | 2019/09/17 08:00 | Nuria Parrizas-Diaz v Julia Terziyska | 6-3,6-3 |
| ITF W60 Meitar | 2019/09/11 07:00 | Kamilla Rakhimova v Nuria Parrizas-Diaz | 7-6,6-2 |
| ITF W60 Meitar | 2019/09/10 12:30 | Lina Glushko v Nuria Parrizas-Diaz | 4-6,0-6 |