Home History
| ITF Germany F17 | 2014/10/21 15:30 | Michal Schmid v Viktor Kostin | 6-2,7-6 |
| ITF Poland F6 Qual | 2014/08/23 07:00 | Viktor Kostin v Karol Krawczynski | 6-1,6-4 |
| ITF Poland F5 | 2014/08/22 14:55 | Viktor Kostin v Grzegorz Panfil | 6-0,2-6,2-6 |
| ITF Poland F5 | 2014/08/21 16:00 | Viktor Kostin v Maciej Smola | 6-3,3-6,7-6 |
| ITF Poland F5 Qual | 2014/08/16 12:00 | Viktor Kostin v Daniel Kossek | 6-0,6-1 |
| ITF Germany F12 | 2014/08/11 11:00 | Christoph Negritu v Viktor Kostin | 6-3,5-7,6-3 |
Away History
| Challenger Como | 2014/08/27 15:00 | Filippo Volandri v Steven Diez | 6-3,6-2 |
| Challenger Granby | 2014/07/15 15:55 | Jason Jung v Steven Diez | 6-2,6-4 |
| ITF Spain F16 | 2014/07/04 15:00 | Steven Diez v David Perez Sanz | 3-6,2-6 |
| ITF Spain F16 | 2014/07/03 12:50 | Steven Diez v Eduard Esteve Lobato | 6-0,6-3 |
| ITF Spain F16 | 2014/07/03 08:30 | Steven Diez v Jorge Hernando-Ruano | 6-1,6-1 |
| ITF Spain F16 | 2014/07/02 08:00 | Steven Diez v Miguel Semmler | 6-1,6-1 |
| Challenger Padova | 2014/06/23 10:45 | Adrian Ungur v Steven Diez | 6-2,6-2 |
| Wimbledon Qual | 2014/06/16 13:40 | Steven Diez v Ze Zhang | 6-4,3-6,2-6 |