Stadium: Cancha Central Round: 25 Ground: Hardcourt outdoor
| ITF W25 Salinas | 2021/05/04 14:00 | Zuger, Joanne v Elizabet Hamaliy | 2-6,6-2,10-4 |
| ITF W25 Salinas | 2021/05/03 14:00 | Zuger, Joanne v Julia Riera | 6-3,6-4 |
| ITF - W15 Monastir | 2021/04/21 10:25 | Daria Lodikova v Zuger, Joanne | 7-5,6-2 |
| ITF - W15 Monastir | 2021/04/18 12:30 | Magali Kempen v Zuger, Joanne | 6-7,7-5,6-7 |
| ITF - W15 Monastir | 2021/04/18 08:30 | Zuger, Joanne v Kilnarova, Monika | 6-1,7-5 |
| ITF - W15 Monastir | 2021/04/16 08:30 | Zuger, Joanne v Hourigan, Paige Mary | 6-1,6-4 |
| ITF - W15 Monastir | 2021/04/15 11:05 | Zuger, Joanne v Clara Vlasselaer | 6-4,7-6 |
| ITF - W15 Monastir | 2021/04/14 11:00 | Zuger, Joanne v Ramirez, Evita | 7-6,0-6,6-2 |