James Cahill joined Michael Holt and Kurt Maflin on the Q School casualty list after losing 4-1 to Germany's Lukas Kleckers in round three of event one on Thursday in Sheffield.
Cahill – a figure who famously defeated seven-time world champion Ronnie O'Sullivan 10-8 in the 2019 Crucible first round as an amateur – restored parity with a 53 after his opponent compiled an opening 75.
But Kleckers claimed the next three frames, finishing with a composed 61, to advance to round four at Ponds Forge as he chases three more wins to secure a fresh two-year tour card.
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'The Ruhr-Potter' will next face the heavy-scoring Chinese potting prodigy Liu Hongyu, who continued his impressive progress with a 4-1 dismissal of Alfie Lee.
18-year-old Liu lost the first frame, but contributed 100 and 71 to finalise his meeting with Kleckers.
Liu enjoyed a 134 against Andy Milliard in the first round before running in the highest break of the event so far with a 137 against Ben Mertens in a 4-3 win in the second round.
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12 tour cards are available in Sheffield. Three events are staged at Ponds Forge between 16th May until 2nd June with four semi-finalists from each tournament earning a tour card.
Holt will need to find his form at event two of snooker Q School after suffering a shock 4-3 defeat in the second round of event one to Thailand's Nattanapong Chaikul, who suffered a 4-2 loss to Brandon Sargeant in round three.
Former world quarter-finalist Maflin squandered a 3-0 lead to lose 4-3 to Andy Lee in the second round on Wednesday.
An Asia-Oceania Q School will also take place in Bangkok for the first time starting on 1st June with another four tour cards on the line.
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Two events are to be hosted in Thailand's capital city with the finalists from both earning a two-year card to the elite circuit.
19-year-old Julien Leclercq of Belgium clinched a two-year tour card last week with victory at the Q Tour play-offs.
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