| Result | Tournament |
|---|---|
| Marc Bijsterbosch defeated Guilherme Sousa | 2016 EuroTour Billard Treviso Open 9-Ball |
| Guilherme Sousa defeated Ville Hamalainen | 2016 EuroTour Billard Treviso Open 9-Ball |
| Guilherme Sousa defeated Reda Belhaj | 2016 EuroTour Billard Treviso Open 9-Ball |
| Alexander Kazakis defeated Guilherme Sousa | 2016 EuroTour Billard Treviso Open 9-Ball |
| Guilherme Sousa defeated Matjaz Erculj | 2016 EuroTour Billard Treviso Open 9-Ball |
| Ivo Aarts defeated Guilherme Sousa | 2016 EuroTour Billard Dutch Open 9-Ball |
| Marc Bijsterbosch defeated Guilherme Sousa | 2016 EuroTour Billard Dutch Open 9-Ball |
| Guilherme Sousa defeated Hoa Nguyen | 2016 EuroTour Billard Dutch Open 9-Ball |
| Jaroslav Polach defeated Guilherme Sousa | 2015 EuroTour Billard Portugal Open 9-Ball |
| Guilherme Sousa defeated Angelo Salzano | 2015 EuroTour Billard Portugal Open 9-Ball |
| Dagxio Orellana-Pina defeated Guilherme Sousa | 2015 EuroTour Billard Portugal Open 9-Ball |
| Francisco Diaz-Pizarro defeated Guilherme Sousa | 2015 EuroTour Billard Italian Open 9-Ball |
| Guilherme Sousa defeated Markus Leppiaho | 2015 EuroTour Billard Italian Open 9-Ball |
| Imran Majid defeated Guilherme Sousa | 2015 EuroTour Billard Italian Open 9-Ball |
| Guilherme Sousa defeated Admir Muho | 2015 EuroTour Billard Italian Open 9-Ball |
| Michael Scheffler defeated Guilherme Sousa | 2015 EuroTour Billard German Open 9-Ball |
| Nikos Ekonomopoulos defeated Guilherme Sousa | 2015 EuroTour Billard German Open 9-Ball |
| Guilherme Sousa defeated Henrikas Strolis | 2015 EuroTour Billard German Open 9-Ball |
| Francisco Diaz-Pizarro defeated Guilherme Sousa | 2015 EuroTour Billard Austrian Open 9-Ball |
| Khalid Esbaitah defeated Guilherme Sousa | 2015 EuroTour Billard Austrian Open 9-Ball |
| Tomas Larsson defeated Guilherme Sousa | 2014 EuroTour North Cyprus Open 9-Ball |
| Chris Melling defeated Guilherme Sousa | 2014 EuroTour North Cyprus Open 9-Ball |
| Guilherme Sousa defeated Oliver Ortmann | 2014 EuroTour North Cyprus Open 9-Ball |
| Guilherme Sousa defeated Rui Edgar Franco | 2014 EuroTour North Cyprus Open 9-Ball |
| Mats Nygren defeated Guilherme Sousa | 2013 EuroTour Bosnia & Herzegovina Open 10-Ball |
| Guilherme Sousa defeated Alexis Papageorgiou | 2013 EuroTour Bosnia & Herzegovina Open 10-Ball |
| Nick Malai defeated Guilherme Sousa | 2013 EuroTour Bosnia & Herzegovina Open 10-Ball |
| Guilherme Sousa defeated Tommy Wolff | 2013 EuroTour Bosnia & Herzegovina Open 10-Ball |
| Alexander Kazakis defeated Guilherme Sousa | 2013 EuroTour Austria Open 9-Ball |
| Guilherme Sousa defeated Richard Toporis | 2013 EuroTour Austria Open 9-Ball |
| Babken Melkonyan defeated Guilherme Sousa | 2013 EuroTour Austria Open 9-Ball |
| Onuc Althur defeated Guilherme Sousa | 2012 EuroTour North Cyprus Open 9-Ball |
| Roman Hybler defeated Guilherme Sousa | 2012 EuroTour North Cyprus Open 9-Ball |
| Pal Helgesen defeated Guilherme Sousa | 2012 EuroTour Italy Open 10-Ball |
| Konstantin Stepanov defeated Guilherme Sousa | 2012 EuroTour Italy Open 10-Ball |
| Guilherme Sousa defeated Michelangelo Laurano | 2012 EuroTour Italy Open 10-Ball |
| Guilherme Sousa defeated Michael Gyau | 2012 EuroTour German Open 10-Ball |
| Nikos Ekonomopoulos defeated Guilherme Sousa | 2012 EuroTour German Open 10-Ball |
| Guilherme Sousa defeated Marek Hajdovsky | 2012 EuroTour German Open 10-Ball |
| Guilherme Sousa defeated Markus Anzenberger | 2012 EuroTour Austria Open 9-Ball |
| Ralf Souquet defeated Guilherme Sousa | 2011 EuroTour Italy Open 9-Ball |
| Guilherme Sousa defeated Damianos Giallourakis | 2011 EuroTour Italy Open 9-Ball |
| Guilherme Sousa defeated Massimo Laucci | 2011 EuroTour Italy Open 9-Ball |
| Guilherme Sousa defeated Elvis Ambord | 2011 EuroTour Italy Open 9-Ball |
| Guilherme Sousa defeated Daniel-Alin Dutescu | 2011 EuroTour Italy Open 9-Ball |
| Ralf Souquet defeated Guilherme Sousa | 2011 EuroTour Italy Open 9-Ball |
| Guilherme Sousa defeated Antonio Feliziani | 2011 EuroTour Italy Open 9-Ball |
| Mariusz Skoneczny defeated Guilherme Sousa | 2011 EuroTour German Open 10-Ball |
| Guilherme Sousa defeated Arfan Dad | 2011 EuroTour German Open 10-Ball |
| Guilherme Sousa defeated Niels Feijen | 2011 EuroTour German Open 10-Ball |