| Mateusz Sniegocki defeated Costas Konnaris |
2014 EuroTour Treviso Open 9-Ball |
| Adam Mscisz defeated Costas Konnaris |
2014 EuroTour Treviso Open 9-Ball |
| Tomas Larsson defeated Costas Konnaris |
2014 EuroTour Slovenian Open 9-Ball |
| Noel Bruynooghe defeated Costas Konnaris |
2014 EuroTour Slovenian Open 9-Ball |
| Costas Konnaris defeated Chris Mcbreen |
2012 EuroTour German Open 10-Ball |
| Konrad Juszczyszyn defeated Costas Konnaris |
2013 EuroTour Bosnia & Herzegovina Open 10-Ball |
| Mateusz Sniegocki defeated Costas Konnaris |
2013 EuroTour Bosnia & Herzegovina Open 10-Ball |
| Costas Konnaris defeated Muhidin Solak |
2013 EuroTour Bosnia & Herzegovina Open 10-Ball |
| Marek Kudlik defeated Costas Konnaris |
2015 EuroTour Billard Treviso Open 9-Ball |
| Niels Feijen defeated Costas Konnaris |
2015 EuroTour Billard Treviso Open 9-Ball |
| Costas Konnaris defeated Stephan Cohen |
2015 EuroTour Billard Treviso Open 9-Ball |
| Francisco Sanchez-Ruiz defeated Costas Konnaris |
2011 EuroTour Austria Open 9-Ball |
| Martin Czerwinsky defeated Costas Konnaris |
2011 EuroTour Austria Open 9-Ball |
| Costas Konnaris defeated Angelo Salzano |
2011 EuroTour Austria Open 9-Ball |