Nathan Rafferty, Reece Robinson, Steven Noster and Sebastian Bialecki each picked up a Unicorn Challenge title as four events took place in Milton Keynes and Niedernhausen.
The second weekend of 2021 Challenge Tour action continued with another two events each at the Marshall Arena, Milton Keynes for UK-based players and the H+ Hotel, Niedernhausen for European-based players.
Three-time Development Tour title winner Rafferty, 21, claimed his first Challenge Tour crown, defeating Robert Rickwood 5-2 in the Event Ten final.
Earlier in the day former Tour Card Holder Robinson edged out USA's Daniel Lauby 5-4 in the Event Nine decider.
In Europe, there were maiden titles for Germany's Noster and upcoming Polish talent Bialecki.
Noster overcame Jimmy Hendriks 5-2 in the Event Nine final, before Bialecki edged out Kevin Doets 5-4 in the final game of the day.
The PDC Unicorn Challenge Tour continues with two more tournaments each in the UK and Europe on Sunday.
Two tournaments will take place at both the Marshall Arena, Milton Keynes for UK-based players and the H+ Hotel, Niedernhausen for European-based players.
Each event features non-PDC Tour Card Holders who attended the 2021 Qualifying Schools, with the overall Order of Merit winner of each tour securing a PDC Tour Card for 2022/23 and a place in the 2021/22 William Hill World Darts Championship.
PDC Unicorn Challenge Tour UK
Saturday September 4, Marshall Arena, Milton Keynes
Connor Scutt 5-2 David Pallett
Daniel Lauby 5-3 Niall Culleton
Cameron Menzies 5-3 Neil MacDougall
Reece Robinson 5-1 Richie Burnett
Daniel Lauby 5-4 Connor Scutt
Reece Robinson 5-2 Cameron Menzies
Reece Robinson 5-4 Daniel Lauby
Robert Rickwood 5-1 Stu Wilson
Connor Scutt 5-3 Arron Monk
Nathan Rafferty 5-4 Robert Collins
Adam Mould 5-4 Jarred Cole
Robert Rickwood 5-4 Connor Scutt
Nathan Rafferty 5-4 Adam Mould
Nathan Rafferty 5-2 Robert Rickwood
PDC Unicorn Challenge Tour Europe
Saturday September 4, H+ Hotel, Niedernhausen
José Justicia 5-4 Ricardo Pietreczko
Jimmy Hendriks 5-3 Chris Landman
Brian Raman 5-4 Michael Rasztovits
Steven Noster 5-4 Kevin Blomme
Jimmy Hendriks 5-3 José Justicia
Steven Noster 5-3 Brian Raman
Steven Noster 5-2 Jimmy Hendriks
Michael Rasztovits 5-4 Christian Kist
Kevin Doets 5-3 José Justicia
Thibault Tricole 5-3 Rowby-John Rodriguez
Sebastian Bialecki 5-4 Lukas Wenig
Kevin Doets 5-2 Michael Rasztovits
Sebastian Bialecki 5-4 Thibault Tricole
Sebastian Bialecki 5-4 Kevin Doets