| Result | Tournament |
|---|---|
| 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 |
| 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 |
| 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 |
| Costas Konnaris defeated Chris Mcbreen | 2012 EuroTour German Open 10-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 |