Stadium: Centre Court Round: 24 Ground: Hardcourt outdoor
| ITF - M15 Héraklion | 2019/11/07 07:30 | Kalovelonis, Markos v Pedro Vives Marcos | 6-4,6-7,4-6 |
| ITF - M15 Héraklion | 2019/11/06 10:30 | Alexandar Lazarov v Kalovelonis, Markos | 6-1,5-7,3-6 |
| ITF - M15 Antalya | 2019/10/10 09:05 | Kalovelonis, Markos v Aleksandre Bakshi | 6-4,2-6,3-6 |
| ITF - M15 Antalya | 2019/10/09 07:00 | Alexander Shevchenko v Kalovelonis, Markos | 6-3,6-7,4-6 |
| Jounieh, Singles M-ITF-LBN-02A | 2019/10/02 17:40 | Filip, Vladimir v Kalovelonis, Markos | 4-6,6-4,6-3 |
| Jounieh, Singles M-ITF-LBN-02A | 2019/09/26 14:55 | Kalovelonis, Markos v Moundir, Adam | 0-6,3-6 |
| Jounieh, Singles M-ITF-LBN-02A | 2019/09/25 17:55 | Kalovelonis, Markos v Suntic, Sabit | 7-5,4-6,6-1 |
| Moscow, Singles M-ITF-RUS-04A | 2019/08/20 09:00 | Danilov, Savriyan v Kalovelonis, Markos | 6-4,6-1 |
| Nanchang, Singles M-ITF-CHN-16A | 2019/10/03 03:50 | Prashanth, N. Vijay Sundar v Tsung-Hao Huang | 4-6,5-7 |
| Nanchang, Singles M-ITF-CHN-16A | 2019/10/02 02:00 | Prashanth, N. Vijay Sundar v Wattanakul, Pol | 6-4,6-4 |
| Nanchang, Singles M-ITF-CHN-16A | 2019/09/24 02:00 | Li, Yuanfeng v Prashanth, N. Vijay Sundar | 6-0,7-5 |
| Challenger - Augsburg | 2019/08/06 16:00 | Prashanth, N. Vijay Sundar v Lenz, Julian | 5-7,1-6 |
| Challenger - Augsburg | 2019/08/05 08:00 | Balaji, N. Sriram v Prashanth, N. Vijay Sundar | 6-2,6-3 |
| Fergana, Uzbekistan | 2019/06/17 08:30 | Prashanth, N. Vijay Sundar v Altug Celikbilek | 3-6,4-6 |
| Hong Kong, Simples M-ITF-HKG-04A | 2019/06/12 02:55 | Shintaro Imai v Prashanth, N. Vijay Sundar | 6-2,6-4 |
| Vercelli, Singles Qualifying M-ITF-ITA-08A | 2019/05/09 09:00 | Prashanth, N. Vijay Sundar v Moroni, Filippo | 6-3,1-6,3-6 |