| Croatia Open | 2019/05/15 09:00 | David Serdaroglu v Simon Berglund | L | 1-3 |
| Croatia Open | 2019/05/14 14:20 | David Serdaroglu v Giorgos Konstantinopoulos | L | 1-3 |
| Slovenia Open | 2019/05/09 12:45 | David Serdaroglu v Daniele Pinto | W | 3-1 |
| Slovenia Open | 2019/05/08 15:00 | David Serdaroglu v Matias Alvarado | W | 3-0 |
| Serbia Open | 2019/05/03 15:10 | David Serdaroglu v Siu Hang Lam | L | 1-4 |
| Czech Republic Extraleague | 2019/04/07 14:02 | Narayan Kapolnek v David Serdaroglu | W | 0-3 |
| Qatar Open XD | 2019/03/26 11:50 | David Serdaroglu v Can Akkuzu | L | 1-4 |
| Czech Republic Extraleague | 2019/03/22 17:25 | Yun-Ju Lin v David Serdaroglu | L | 4-0 |
| Croatia Open | 2019/05/16 13:40 | Shunsuke Togami v Deni Kozul | L | 4-2 |
| Slovenia Open | 2019/05/10 17:40 | Deni Kozul v Anders Lind | L | 3-4 |
| Slovenia Open | 2019/05/10 10:25 | Deni Kozul v Tomislav Kolarek | W | 4-2 |
| World Championship | 2019/04/23 18:40 | Dimitrij Ovtcharov v Deni Kozul | L | 4-2 |
| World Championship | 2019/04/23 11:20 | Deni Kozul v Noshad Alamiyan | W | 4-1 |
| Czech Republic Extraleague | 2019/02/16 13:30 | Deni Kozul v Vladimir Samsonov | L | 0-4 |
| Qatar Open Women | 2019/02/08 18:54 | Joao Geraldo v Deni Kozul | L | 3-0 |
| Qatar Open Women | 2019/01/25 18:17 | Deni Kozul v Jens Lundqvist | L | 1-3 |