Stadium: Clay Court 1 Round: 28 Ground: Clay
| ITF Women Heraklion | 2018/03/20 08:00 | Martina Spigarelli v Koelzer, Romy | 1-6,1-6 |
| ITF Women Santa Margherita Qual | 2017/09/25 14:20 | Koelzer, Romy v Martina Spigarelli | 6-1,6-1 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2017/09/19 15:45 | Koelzer, Romy v Martina Spigarelli | 6-7,7-5,6-1 |
| ITF Women Oeiras | 2017/05/16 10:45 | Koelzer, Romy v Martina Spigarelli | 6-0,6-4 |
| ITF - W15 Héraklion | 2020/02/14 09:00 | Dalila Spiteri v Koelzer, Romy | 6-2,4-6,4-6 |
| ITF - W15 Héraklion | 2020/02/13 10:10 | Corneanu , Oana Smaranda v Koelzer, Romy | 1-6,0-6 |
| ITF - W15 Héraklion | 2020/02/11 08:00 | Arina Gabriela Vasilescu v Koelzer, Romy | 5-7,5-7 |
| Nonthaburi, Singles W-ITF-THA-01A | 2020/02/03 02:30 | Rina Saigo v Koelzer, Romy | 6-3,6-4 |
| Nonthaburi, Singles W-ITF-THA-01A | 2020/02/02 03:00 | Tanuchaporn Yongmod v Koelzer, Romy | 0-6,1-6 |
| Nonthaburi, Singles W-ITF-THA-01A | 2020/01/26 06:20 | Moyuka Uchijima v Koelzer, Romy | 6-4,7-6 |
| ITF - W15 Monastir | 2020/01/15 09:35 | Koelzer, Romy v Sharipova, Sabina | 2-6,1-6 |
| ITF - W15 Sharm El Sheikh | 2019/11/13 14:10 | Stamat, Vitalia v Koelzer, Romy | 6-3,7-5 |
| ITF - W15 Héraklion | 2020/02/14 09:00 | Martina Spigarelli v Olga Helmi | 6-7,6-4,6-3 |
| ITF - W15 Héraklion | 2020/02/13 08:30 | Taisiya Pachkaleva v Martina Spigarelli | 2-6,0-6 |
| ITF - W15 Héraklion | 2020/02/11 10:25 | Ukolova, Anna v Martina Spigarelli | 1-6,6-4,1-6 |
| ITF - W15 Héraklion | 2019/12/15 08:00 | Oleksandra Oliynykova v Martina Spigarelli | 1-6,6-4,6-3 |
| ITF - W15 Héraklion | 2019/12/13 10:40 | Oana Gavrila v Martina Spigarelli | 4-6,2-6 |
| ITF - W15 Héraklion | 2019/12/12 07:55 | Martina Spigarelli v Lina Glushko | 6-4,4-6,6-4 |
| ITF - W15 Héraklion | 2019/12/11 08:00 | Zarnoveanu, Gabriela Aura v Martina Spigarelli | 2-6,2-6 |
| ITF - W15 Héraklion | 2019/12/06 08:00 | Oleksandra Oliynykova v Martina Spigarelli | 6-3,6-2 |