Stadium: Court 3 Round: 25 Ground: Clay
| ITF W25 Den Haag | 2019/07/04 07:30 | Allie Kiick v Koelzer, Romy | 6-4,6-4 |
| ITF W25 Den Haag | 2019/07/03 07:30 | Malene Helgo v Koelzer, Romy | 5-7,5-7 |
| ITF W25 Den Haag | 2019/07/02 07:30 | Koelzer, Romy v Pirazhenka, Sviatlana | 7-5,4-6,10-6 |
| ITF W25 Den Haag | 2019/07/01 09:30 | Koelzer, Romy v Karregat, Dominique | 6-3,6-1 |
| ITF W25 Darmstadt | 2019/06/25 16:00 | Koelzer, Romy v Piter, Katarzyna | 5-7,6-2,2-6 |
| ITF W25 Ystad | 2019/06/19 10:25 | Koelzer, Romy v Hogenkamp, Richel | 1-6,4-6 |
| Obidos, Singles Qualifying W-ITF-POR-01A | 2019/05/14 14:30 | Koelzer, Romy v Marina Bassols Ribera | 5-7,7-5,0-6 |
| Obidos, Singles Qualifying W-ITF-POR-01A | 2019/05/08 15:05 | Carreras, Amanda v Koelzer, Romy | 6-3,6-4 |
| ITF W25 Den Haag | 2019/07/03 14:00 | Allie Kiick v Indy De Vroome | 3-6,6-4,6-3 |
| ITF W15 Alkmaar | 2019/06/26 08:00 | Michaela Bayerlova v Indy De Vroome | 6-7,7-6,6-4 |
| ITF W25 Klosters | 2019/06/17 12:30 | Kennel, Karin v Indy De Vroome | 6-2,2-6,10-7 |
| WTA Hertogenbosch | 2019/06/08 15:15 | Varvara Lepchenko v Indy De Vroome | 6-1,6-4 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/05/10 11:10 | Indy De Vroome v Hering, Katharina | 4-6,6-3,6-0 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/05/09 11:35 | Indy De Vroome v Kajsa Rinaldo Persson | 6-2,6-4 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/05/08 12:35 | Indy De Vroome v Puig Caballero, Blanca | 6-1,6-0 |
| ITF - W15 Antalya | 2019/05/05 07:45 | Jennifer Luikham v Indy De Vroome | 1-6,0-6 |