SHEFFIELD, England, April 23 (Xinhua) -- Following are the results from the fourth day's competition of the World Snooker Championship at the Crucible Theatre in Sheffield on Tuesday (best of 19 frames):
Stuart Bingham, England, bt Graeme Dott, Scotland, 10-9
David Gilbert, England, bt Joe Perry, England, 10-7
James Cahill, England, bt Ronnie O'Sullivan, England, 10-8
First session results (matches resume on Wednesday)
Zhou Yuelong, China, leads Mark Allen, Northern Ireland, 7-2
Thepchaiya Un-Nooh, Thailand, leads Judd Trump, England, 6-3
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