Germany
12.03.96, 29 years
12.03.96, 29 years
Country
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Poland
30.08.97, 27 years
30.08.97, 27 years
Viktor Kostin vs. Karol Krawczynski - head to head matches
| 31.08.15 | q 2 | Karol Krawczynski | Viktor Kostin | 6-4, 1-0, Karol Krawczynski - retired | match details |  Poland F4 | Clay |
| 25.08.14 | q 1 | Viktor Kostin | Karol Krawczynski | 6-1, 6-4 | match details | Poland F6 | Clay |
Viktor Kostin form & Karol Krawczynski form
Viktor Kostin - last matches
| Poland F8 - Clay | ||||
| 20.08.18 qual. | vs. Michal Mikula | 4-6, 3-6 |  | match details |
| 19.08.18 q 2 | vs. Dominik Nazaruk | 6-2, 5-7, 7-5 |  | match details |
| 18.08.18 q 1 | vs. Nikita Gudozhnikov | 6-2, 6-2 | | match details |
| Poland F7 - Clay | ||||
| 13.08.18 qual. | vs. Michal Mikula | 5-7, - Viktor Kostin - retired | | match details |
| 12.08.18 q 2 | vs. Tyler Mercier | 6-75, 6-2, 6-3 | | match details |
| 11.08.18 q 1 | vs. Piotr Galus | 6-3, 7-5 | | match details |
| Poland F5 - Clay | ||||
| 17.08.16 1st round | vs. Karim-Mohamed Maamoun | 4-6, 1-6 | | match details |
| 15.08.16 q 2 | vs. Krzysztof Mlazga | 6-3, 6-1 | | match details |
| 15.08.16 qual. | vs. Mateusz Piatek | 6-2, 6-1 | | match details |
| Poland F4 - Clay | ||||
| 31.08.15 q 2 | vs. Karol Krawczynski | 4-6, 0-1, - Viktor Kostin - retired | | match details |
| 31.08.15 q 1 | vs. Vladyslav Orlov | 6-4, 6-1 | | match details |
| Poland F3 - Clay | ||||
| 24.08.15 1st round | vs. Axel Michon | 3-6, 1-6 | | match details |
| Poland F2 - Clay | ||||
| 17.08.15 1st round | vs. Denys Mylokostov | 6-1, 7-61 | | match details |
| 17.08.15 q 1 | vs. Adam Mlazga | 6-4, 6-74, 6-3 | | match details |
| 17.08.15 q 2 | vs. Marcin Mol | 6-1, 6-1 | | match details |
| 17.08.15 2nd round | vs. Axel Michon | 2-6, 3-6 | | match details |
| 17.08.15 qual. | vs. Maciej Smola | 6-4, 3-6, 7-65 | | match details |
 Germany F10 - Clay | ||||
| 03.08.15 q 1 | vs. Jesper Tull Freimuth | 3-6, 6-2, 5-7 | | match details |
| Poznan Challenger - Clay | ||||
| 11.07.15 q 1 | vs. Artem Smirnov | 2-6, 2-6 | | match details |
 Tunisia F7 - Hard | ||||
| 10.11.14 qual. | vs. Christian Hirschmueller | 6-79, 2-6 | | match details |
| 10.11.14 q 1 | vs. Arseniy Morozov | 6-3, 3-6, 6-1 | | match details |
| Tunisia F6 - Hard | ||||
| 03.11.14 1st round | vs. Steven Diez | 4-6, 6-3, 2-6 | | match details |
| 03.11.14 qual. | vs. Ismail Ben Ayed | 6-0, 6-1 | | match details |
| Germany F17 - Carpet | ||||
| 20.10.14 1st round | vs. Michal Schmid | 2-6, 6-72 | | match details |
| Szczecin Challenger - Clay | ||||
| 06.09.14 q 1 | vs. Piotr Gadomski | 2-6, 2-6 | | match details |
| Poland F6 - Clay | ||||
| 25.08.14 q 1 | vs. Karol Krawczynski | 6-1, 6-4 | | match details |
| 25.08.14 q 2 | vs. Igor Zubov | 5-7, 6-4, 1-6 | | match details |
| Poland F5 - Clay | ||||
| 18.08.14 1/4 | vs. Grzegorz Panfil | 6-0, 2-6, 2-6 | | match details |
| 18.08.14 q 2 | vs. Michal Nispon | 6-1, 6-3 | | match details |
| 18.08.14 qual. | vs. Petr Michnev | 3-6, 6-0, 6-1 | | match details |
Karol Krawczynski - last matches
 All Lower - Clay | ||||
| 16.08.20 1st round | vs. Daniel Michalski | 6-76, 0-6 | | match details |
| 16.08.20 1st round | vs. Mikolaj Lorens | 7-67, 2-6, 6-4 | | match details |
| 15.08.20 1st round | vs. Maks Kasnikowski | 6-2, 6-2 | | match details |
| 25.07.20 1st round | vs. Maciej Rajski | 6-4, 1-6, 3-6 | | match details |
| 24.07.20 1st round | vs. Yann Wojcik | 6-4, 2-6, 6-3 | | match details |
| 15.07.20 1st round | vs. Bartlomiej Andrzejczak | 6-4, 7-5 | | match details |
| 06.07.20 1st round | vs. Kacper Zuk | 2-6, 2-6 | | match details |
| 21.06.20 1st round | vs. Jan Zielinski | 2-6, 3-6 | | match details |
| 21.06.20 1st round | vs. Patryk Kosinski | 6-1, 6-2 | | match details |
 Czech Republic - Clay | ||||
| 11.07.16 q 1 | vs. Michal Marko | 7-5, 6-2 | | match details |
| 11.07.16 q 2 | vs. Pavel Motl | 3-6, 1-6 | | match details |
| Czech Republic - Clay | ||||
| 27.06.16 q 1 | vs. Gianluca Acquaroli | 6-4, 4-6, 2-6 | | match details |
| Poland F4 - Clay | ||||
| 13.06.16 q 1 | vs. Yann Wojcik | 6-3, 2-6, 7-66 | | match details |
| 13.06.16 qual. | vs. Jan Zielinski | 4-6, 1-6 | | match details |
| 13.06.16 q 2 | vs. Eero Vasa | 7-65, 6-4 | | match details |
| Poland F3 - Clay | ||||
| 06.06.16 q 1 | vs. Artsiom Dabryian | 3-6, 6-4, 6-2 | | match details |
| 06.06.16 qual. | vs. Piotr Grynkowski | 4-6, 3-6 | | match details |
| Poland F2 - Clay | ||||
| 30.05.16 1st round | vs. Adrian Andrzejczuk | 3-6, 7-5, 3-6 | | match details |
| Czech Republic - Clay | ||||
| 23.05.16 q 1 | vs. Mikayel Avetisyan | 6-3, 6-1 | | match details |
| 23.05.16 qual. | vs. David Simunek | 4-6, 3-6 | | match details |
| 23.05.16 q 2 | vs. Adam Kalivoda | 6-2, 6-3 | | match details |
 Croatia F18 - Clay | ||||
| 28.09.15 q 1 | vs. Philipp Schroll | 5-7, 3-6 | | match details |
| Croatia F17 - Clay | ||||
| 21.09.15 q 1 | vs. Mikael Joakim | 6-2, 6-1 | | match details |
| 21.09.15 q 2 | vs. Tomas Charlos | 7-5, 6-1 | | match details |
| 21.09.15 1st round | vs. Zdenek Kolar | 3-6, 2-6 | | match details |
| 21.09.15 qual. | vs. James Allemby | 7-5, 6-1 | | match details |
| Poland F4 - Clay | ||||
| 31.08.15 qual. | vs. Maciej Rajski | 2-6, 2-6 | | match details |
| 31.08.15 q 1 | vs. Max Steinberger | 7-5, 6-1 | | match details |
| 31.08.15 q 2 | vs. Viktor Kostin | 6-4, 1-0, Viktor Kostin - retired | | match details |
| Poland F3 - Clay | ||||
| 24.08.15 q 2 | vs. Oleg Prihodko | 4-6, 6-71 | | match details |