Michael Georgiou and Jamie Jones achieved the rare feat of their first maximum breaks at the Paul Hunter Classic in Furth, Germany, on Friday.
30-year-old Georgiou's came during the second frame of his first round-match against German Umut Dikme at the world ranking event, which saw the Cypriot win 4-2, before a 4-3 defeat in the last 64 against Zhang Yong of China.
Welshman Jones secured his to go 2-1 up in his second-round match against compatriot Lee Walker, before going on to lose 4-2. Their 147s, which mean they will each be paid a £10,000 bonus, represent the first of the 2018-19 season and the 140th and 141st in history.
Peter Ebdon is among those to have reached the sixth round in Germany, following a 4-2 victory over Mark King.
There was disappointment for defending champion Michael White however, as he was knocked out in the last 32 by Zhang Anda, going down 4-1 to the Chinese player who will face Harvey Chandler in the next round.
Teenager Jackson Page reached the last 16 of a ranking event for the first time after coming from behind to beat Sam Baird 4-3, hitting a 141 in the decided to come from two down to win.