| Kristof de Bruyn defeated Cliff Castelein |
2011 PTC - Event 9 Snooker |
| Eklent KaCi defeated Cliff Castelein |
2018 Dynamic Billard Veldhoven Open 9-Ball |
| Konrad Juszczyszyn defeated Cliff Castelein |
2018 Dynamic Billard Veldhoven Open 9-Ball |
| Cliff Castelein defeated Stephan Weihnacht |
2018 Dynamic Billard Veldhoven Open 9-Ball |
| Cliff Castelein defeated Pierfrancesco Garzia |
2018 Dynamic Billard Veldhoven Open 9-Ball |
| Cliff Castelein defeated Ralf Zigahn |
2018 Dynamic Billard Veldhoven Open 9-Ball |
| Roman Hybler defeated Cliff Castelein |
2018 Dynamic Billard St. Johann im Pongau Open 9-Ball |
| Cliff Castelein defeated Jani Siekkinen |
2018 Dynamic Billard St. Johann im Pongau Open 9-Ball |
| Cliff Castelein defeated Matthias Suranyi |
2018 Dynamic Billard St. Johann im Pongau Open 9-Ball |
| Mariusz Skoneczny defeated Cliff Castelein |
2018 Dynamic Billard St. Johann im Pongau Open 9-Ball |
| Cliff Castelein defeated Imran Majid |
2018 Dynamic Billard St. Johann im Pongau Open 9-Ball |
| Cliff Castelein defeated Marton Keidl |
2018 Dynamic Billard St. Johann im Pongau Open 9-Ball |
| Nguyen Phuc Long defeated Cliff Castelein |
2019 Dynamic Billard Leende Open 9-Ball |
| Cliff Castelein defeated Eirik Riisnæs |
2019 Dynamic Billard Leende Open 9-Ball |
| Cliff Castelein defeated Pijus Labutis |
2019 Dynamic Billard Leende Open 9-Ball |
| Mats Schjetne defeated Cliff Castelein |
2019 Dynamic Billard Leende Open 9-Ball |
| Mark Gray defeated Cliff Castelein |
2018 Dynamic Billard Leende Open 9-Ball |
| Cliff Castelein defeated Denis Grabe |
2018 Dynamic Billard Leende Open 9-Ball |
| Sergey Lutsker defeated Cliff Castelein |
2018 Dynamic Billard Leende Open 9-Ball |
| Cliff Castelein defeated Stephan Weihnacht |
2018 Dynamic Billard Leende Open 9-Ball |
| Mariusz Skoneczny defeated Cliff Castelein |
2018 Dynamic Billard Klagenfurt Open 9-Ball |
| Roberto Bartol defeated Cliff Castelein |
2018 Dynamic Billard Klagenfurt Open 9-Ball |
| Francisco Diaz-Pizarro defeated Cliff Castelein |
2018 Dynamic Billard BHR Treviso Open 9-Ball |
| Cliff Castelein defeated Albert Casellas-Planas |
2018 Dynamic Billard BHR Treviso Open 9-Ball |
| Cliff Castelein defeated Jani Siekkinen |
2018 Dynamic Billard BHR Treviso Open 9-Ball |
| Cliff Castelein defeated Konrad Juszczyszyn |
2018 Dynamic Billard BHR Treviso Open 9-Ball |
| Cliff Castelein defeated Javier Del Santo-Sanz |
2018 Dynamic Billard BHR Treviso Open 9-Ball |
| Abbas Al-Marayati defeated Cliff Castelein |
2013 EuroTour Italy Open 9-Ball |
| Cliff Castelein defeated Roger Lysholm |
2013 EuroTour Italy Open 9-Ball |
| Cliff Castelein defeated Jonni Fulcher |
2013 EuroTour Italy Open 9-Ball |
| David Alcaide defeated Cliff Castelein |
2013 EuroTour Italy Open 9-Ball |
| Cliff Castelein defeated Henrikas Strolis |
2013 EuroTour Italy Open 9-Ball |
| Jakob Belka defeated Cliff Castelein |
2011 EuroTour Italy Open 9-Ball |
| Carlos Cabello defeated Cliff Castelein |
2011 EuroTour Italy Open 9-Ball |
| Cliff Castelein defeated Huidji See |
2011 EuroTour Italy Open 9-Ball |
| Cliff Castelein defeated Danilo Cipriani |
2011 EuroTour Italy Open 9-Ball |
| Karen Corr defeated Cliff Castelein |
2011 EuroTour German Open 10-Ball |
| Martin Steinlage defeated Cliff Castelein |
2011 EuroTour German Open 10-Ball |
| Damianos Yiallourakis defeated Cliff Castelein |
2016 EuroTour Billard Treviso Open 9-Ball |
| Cliff Castelein defeated Javier Del Santo-Sanz |
2016 EuroTour Billard Treviso Open 9-Ball |
| Francisco Diaz-Pizarro defeated Cliff Castelein |
2016 EuroTour Billard Treviso Open 9-Ball |
| Cliff Castelein defeated Angelo Salzano |
2016 EuroTour Billard Treviso Open 9-Ball |
| Dimitri Jungo defeated Cliff Castelein |
2015 EuroTour Billard Portugal Open 9-Ball |
| Mark Gray defeated Cliff Castelein |
2015 EuroTour Billard Portugal Open 9-Ball |
| Cliff Castelein defeated Juha Mallinen |
2015 EuroTour Billard Portugal Open 9-Ball |
| Cliff Castelein defeated So Shaw |
2015 EuroTour Billard Portugal Open 9-Ball |
| Andrey Seroshtan defeated Cliff Castelein |
2016 EuroTour Billard Dutch Open 9-Ball |
| Cliff Castelein defeated Kristjan Kuusik |
2016 EuroTour Billard Dutch Open 9-Ball |
| Nikos Ekonomopoulos defeated Cliff Castelein |
2016 EuroTour Billard Dutch Open 9-Ball |
| Cliff Castelein defeated Theodore Thomas |
2016 EuroTour Billard Dutch Open 9-Ball |
| Andreas Koukiadakis defeated Cliff Castelein |
2014 EuroTour Austria Open 9-Ball |
| Cliff Castelein defeated Philipp Caranica |
2014 EuroTour Austria Open 9-Ball |
| Mario He defeated Cliff Castelein |
2014 EuroTour Austria Open 9-Ball |
| Cliff Castelein defeated Bjorn Lepke |
2014 EuroTour Austria Open 9-Ball |
| Cliff Castelein defeated Serge Das |
2012 EuroTour Austria Open 9-Ball |
| Cliff Castelein defeated Jalo Kotinurmi |
2012 EuroTour Austria Open 9-Ball |