WORLD CUP team-mates Max Hopp and Martin Schindler were joined by Bernd Roith and Michael Hurtz in winning through the Host Nation Qualifier for the HappyBet German Darts Grand Prix.
The final four places in this weekend's £135,000 PDC European Tour event in Mannheim were up for grabs in Thursday's Host Nation Qualifier at the Maimarkhalle.
Former PDC Unicorn World Youth Champion Hopp defeated Philipp Rieger, Manfred Bilderl, Kai Gotthardt and Christian Bunse as he qualified, setting up a first round tie with Jamie Caven on Friday.
Hopp's World Cup team-mate Schindler, the youngster from Berlin, will meet Ireland's Mick McGowan in the main event after he whitewashed both Pascal Wirotius and Marko Puls before defeating Robert Allenstein 6-2.
Experienced German Roith overcame Marvin Esser, Rene Berndt and Philipp Netzer as he progressed to meet Nathan Aspinall in round one.
Hurtz, meanwhile, will make his sixth European Tour appearance but his first since 2014 after wins over Pierre Finck, Nico Blum, Robert Marijanovic and Rene Eidams on Thursday night, setting up a tie with Sweden's Daniel Larsson.
HappyBet German Darts Grand Prix
Host Nation Qualifier
Last 16
Rene Eidams 6-3 Tomas Seyler
Michael Hurtz 6-4 Robert Marijanovic
Max Hopp 6-2 Kai Gotthardt
Christian Bunse 6-1 Thomas Köhnlein
Bernd Roith 6-1 René Berndt
Philipp Netzer 6-4 Stefan Nilles
Martin Schindler 6-0 Marko Puls
Robert Allenstein 6:4 Tobias Müller
Final Games
Michael Hurtz 6-4 Rene Eidams
Max Hopp 6-1 Christian Bunse
Bernd Roith 6-3 Philipp Netzer
Martin Schindler 6-2 Robert Allenstein
Host Nation Qualifiers
HNQ1 Michael Hurtz
HNQ2 Max Hopp
HNQ3 Bernd Roith
HNQ4 Martin Schindler