Round: 26 Ground: Hardcourt indoor
| ITF Greece F3 | 2014/03/25 09:30 | Anton Zaitcev v Markos Kalovelonis | 3-6,6-4,6-3 |
| ITF Estonia F1 | 2015/11/12 12:00 | Isak Arvidsson v Anton Zaitcev | 6-1,6-4 |
| ITF Estonia F1 | 2015/11/11 11:50 | Omar Salman v Anton Zaitcev | 1-6,3-6 |
| ITF Estonia F1 | 2015/11/10 10:00 | Lukas Mugevicius v Anton Zaitcev | 0-6,2-6 |
| ITF Estonia F3 | 2015/11/05 10:00 | Dzmitry Zhyrmont v Anton Zaitcev | 6-3,7-6 |
| ITF Estonia F3 | 2015/11/04 10:00 | Vitaly Kozyukov v Anton Zaitcev | 6-7,1-6 |
| ITF Estonia F3 | 2015/11/02 13:15 | Vladimir Polyakov v Anton Zaitcev | 6-4,3-6,3-6 |
| ITF Russia F8 | 2015/09/11 08:00 | Anton Zaitcev v Mikhail Elgin | 3-6,1-6 |
| ITF Russia F8 | 2015/09/10 08:00 | Denys Molchanov v Anton Zaitcev | 4-6,6-2,6-7 |
| ITF Qatar F6 | 2015/12/15 13:15 | Joris De Loore v Markos Kalovelonis | 6-1,6-2 |
| ITF Qatar F5 | 2015/12/09 12:00 | Seong Chan Hong v Markos Kalovelonis | 6-2,6-3 |
| ITF Qatar F5 | 2015/12/08 13:30 | Laurens Verboven v Markos Kalovelonis | 2-6,0-6 |
| ITF Turkey F46 | 2015/11/20 08:30 | Federico Maccari v Markos Kalovelonis | 3-6,7-5,7-5 |
| ITF Turkey F46 | 2015/11/18 11:00 | Markos Kalovelonis v Marat Deviatiarov | 6-4,4-6,7-6 |
| ITF Turkey F46 | 2015/11/17 07:30 | Markos Kalovelonis v Guy Den Heijer | 6-4,6-7,6-3 |
| ITF Greece F10 | 2015/11/05 07:30 | Markos Kalovelonis v Matvey Khomentovskiy | 7-6,6-7,1-6 |
| ITF Greece F10 | 2015/11/03 09:00 | Markos Kalovelonis v Dominik Suc | 6-3,2-6,7-6 |