Noppon Saengkham pulled off one of the biggest wins of his career as he edged out Mark Selby in a nail-biting black ball shoot-out to reach the Quarter-Finals of the 2018 World Open in Yushan.
Saengkham, the world number 53, stunned the world number one as he held his nerve in a tense final frame to reach the Last Eight of a ranking event for only the third time.
The 26-year-old produced breaks of 65 and 86 on the way to a commanding 3-0 lead, before Selby fought back in typically tenacious fashion with breaks of 102 and 50.
A break of 57 helped Saengkham snatch frame six before Selby clinched two hard-fought frames to force a decider.
A dramatic final frame went down to the wire as both players failed to compile a decisive clearance, but it was the Thai cueist who potted the all-important final black to go through.
Elsewhere, Jack Lisowski continued his superb start to the season by coming from 3-0 down to defeat last year’s beaten finalist Kyren Wilson 5-4.
Lisowski, runner-up in June’s Riga Masters, had whitewashed Chris Wakelin and thrashed Mark Allen 5-1 in the early rounds but did not have things all his own way in the early stages against Wilson as the Kettering cueist took the first three frames despite breaks of 66 and 56 from his opponent.
Lisowski dominated frame four before adding a break of 73 in the fifth to trail 3-2, but only for Wilson to restore a two-frame gap courtesy of a half century.
Runs of 56 and 59 secured frame seven for Lisowski, following sharply by a break of 75 to force a decider – which he edged by 56 points to 38 to complete the comeback.
Lisowski will now face Mark Williams in Friday’s Quarter-Finals after the reigning World Champion powered past Joe Perry 5-1.
Williams fired in breaks of 78, 63, 52 and 75 in a rampant display, averaging just 19 seconds per shot.
World number seven Barry Hawkins held his nerve to dispatch Matthew Selt in a last-frame decider.
Hawkins had raced into a 4-1 lead with breaks of 72 and 81 along the way, but only for Selt to reel off the next three consecutive frames with a high break of 65.
Hawkins, however, dug deep in the decider and sunk a crucial break of 51 to set up a show-down with Gary Wilson.
Former China Open finalist Wilson safely saw off Irish veteran Fergal O’Brien 5-2 with high breaks of 54, 96 and 74.
Marco Fu continued his impressive resurgence after missing much of last season through injury as he defeated Robert Milkins 5-2 in a high quality contest.
Fu established a 2-0 lead with breaks of 78 and 118, but a 58 in the third proved insufficient as Milkins halved the deficit.
Fu then blasted in back-to-back breaks of 103 and 93 to go 4-1 in front, and though Milkins replied with a 59, the Hong Kong ace closed out the win with a majestic 96 break.
Fu will now take on David Gilbert on Friday after the Tamworth ace knocked out multiple major winner Ricky Walden 5-3 with a top break of 82 along the way.
Xiao Guodong kept home hopes alive as he dispatched former German Masters champion Anthony Hamilton 5-3 with a top break of 101.
World Open 2018 Results
Thursday August 9
Mark Selby 4-5 Noppon Saengkham
Xiao Guodong 5-3 Anthony Hamilton
Kyren Wilson 4-5 Jack Lisowski
Joe Perry 1-5 Mark Williams
Robert Milkins 2-5 Marco Fu
David Gilbert 5-3 Ricky Walden
Barry Hawkins 5-4 Matthew Selt
Fergal O’Brien 2-5 Gary Wilson