Stadium: Court 3 Round: 25 Ground: Hardcourt indoor
| ITF Women Klosters | 2018/06/18 12:00 | Markova, Johana v Zuger, Joanne | 6-4,0-6,4-6 |
| ITF Women Montreux Qual | 2017/08/14 10:50 | Markova, Johana v Zuger, Joanne | 6-3,4-6,6-3 |
| Stuttgart-Stammheim, Singles W-ITF-GER-01A | 2019/01/21 14:00 | Aneta Laboutkova v Zuger, Joanne | 2-6,3-6 |
| Stuttgart-Stammheim, Singles W-ITF-GER-01A | 2019/01/21 09:00 | Maluniakova, Laura v Zuger, Joanne | 6-7,1-6 |
| ITF Women Monastir | 2018/12/19 13:00 | Marchetti, Giorgia v Zuger, Joanne | 7-6,4-6,6-1 |
| Cairo, Singles W-WITF-EGY-02A | 2018/12/01 08:00 | Zmau, Michele Alexandra v Zuger, Joanne | 6-3,6-3 |
| Cairo, Singles W-WITF-EGY-02A | 2018/11/30 08:00 | Zuger, Joanne v Ene, Cristina | 6-3,6-1 |
| Cairo, Singles W-WITF-EGY-02A | 2018/11/29 09:00 | Dema, Viktoriia v Zuger, Joanne | 4-6,6-2,4-6 |
| Cairo, Singles W-WITF-EGY-02A | 2018/11/28 07:30 | Zuger, Joanne v Wang, Ziyu | 6-1,6-0 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/11/08 09:30 | Zeynep Sonmez v Zuger, Joanne | 6-1,6-3 |
| ITF Women Dubai | 2018/12/08 09:30 | Laura Pigossi v Markova, Johana | 6-0,6-0 |
| ITF Women Milovice | 2018/11/29 09:00 | Denisa Hindova v Markova, Johana | 1-6,6-3,7-6 |
| ITF Women Milovice | 2018/11/28 10:35 | Kubanova, Karolina v Markova, Johana | 0-6,0-6 |
| ITF Women Petange | 2018/11/01 15:00 | Scholsen, Helene v Markova, Johana | 7-6,6-1 |
| ITF Women Petange | 2018/10/31 10:40 | Berfu Cengiz v Markova, Johana | 4-6,4-6 |
| ITF Women Petange | 2018/10/30 09:00 | Markova, Johana v Samsonova, Liudmila | 6-2,6-2 |
| ITF Women Petange | 2018/10/28 10:00 | Markova, Johana v Yana Morderger | 6-3,7-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/10/21 07:00 | Markova, Johana v Emma Raducanu | 4-6,2-6 |