Stadium: COURT 2 Round: 27
| ITF Women Oeiras WD | 2018/05/23 15:00 | Morales/Oliveira v Klasen/Koelzer | 1-6,2-6 |
| ITF Women Solarino WD | 2018/03/06 13:30 | Kawa/Talbi v Klasen/Koelzer | 2-6,6-3,10-4 |
| ITF Women Solarino WD | 2018/03/05 12:00 | Klasen/Koelzer v Napolitano/Tona | 6-2,6-1 |
| ITF Women Solarino WD | 2018/03/02 14:00 | Gleason/Pirazhenka v Klasen/Koelzer | 6-4,6-4 |
| ITF Women Solarino WD | 2018/03/01 13:00 | Klasen/Koelzer v Morderger/Morderger | 6-2,6-4 |
| ITF Women Solarino WD | 2018/02/28 12:00 | Klasen/Koelzer v Adler/Januskova | 6-7,6-4,10-8 |
| ITF Women Solarino WD | 2018/02/26 12:00 | Minnen/Talcott v Klasen/Koelzer | 6-1,5-7,7-10 |
| ITF Women Tampa WD | 2017/03/15 20:05 | Chang/Mueller v Klasen/Koelzer | 6-2,6-4 |
| ITF Women Oeiras WD | 2018/05/22 14:05 | Campino/Tanqueiro v C-Reimers/Moreno Barranquero | 0-6,0-6 |