The preliminaries continued at the Chase Leisure Centre.
Former German Masters champions Mark Williams and Kyren Wilson both qualified for the last 32 of the competition after contrasting victories on Wednesday in Cannock.
The pair will feature once again at the venue stages in January after emerging unscathed from their second preliminary-round fixtures.
Two-time winner Williams scored two century breaks in overcoming Chang Bingyu with a 5-1 scoreline, while Wilson was made to work a lot harder for his 5-4 triumph against another Chinese cueist in Li Hang.
With fond memories of the tournament, the duo will be eager to make a return to the Tempodrom in Berlin in the new year.
Joining them there will be up-and-coming star Zhao Xintong and former European Masters champion Jimmy Robertson, who recorded respective successes against Pang Junxu and Gary Wilson.
Meanwhile, the first qualifying round continued with two more German Masters champions from years gone by progressing beyond the opening hurdle.
Judd Trump, the returning world number one, began his quest for a third title in a row with a comprehensive 5-1 ousting of Tian Pengfei, with 2017 German Masters winner Anthony Hamilton beating Aaron Hill 5-2.
Veteran Stephen Hendry lost by the same margin to China’s Gao Yang, with the latter’s countryman Zhang Jiankang upsetting Joe Perry as well.
Former world women’s champion Ng On Yee, featuring in her first match as a professional player, almost managed a dream start to her tenure on the Main Tour but let slip a 4-2 cushion in an eventual deciding-frame defeat to Craig Steadman.
Among the others to make it through to the second qualifying round were Barry Hawkins, Xiao Guodong, and amateur top-up Michael Georgiou.
Those eight winners will be in action against each other again on Thursday in the hope of completing their qualification, with the likes of Neil Robertson and Stuart Bingham also entering the fold.
Live coverage is available on the Eurosport Player and Matchroom.Live.