Thailand’s Thepchaiya Un-Nooh produced the snooker of his life, firing in a maximum 147 break and finishing with three consecutive centuries to beat Ronnie O’Sullivan 10-7 in the final of the World Open in Yushan.

The 41st seed toppled world number one Judd Trump in the semi-finals and came back from 4-0 down to beat arguably the sport’s greatest ever player in the final.

O’Sullivan hit the sport’s highest ever break of 153 on his run to a 66th ranking final and the 50-year-old Englishman had looked back to something approaching his best as he hunted down a 42nd ranking title – and first since January 2024.

“I just wanted to try my best because I didn’t know when I might be in another final again,” said 40-year-old Un-Nooh, whose only previous title came in the 2019 Shoot Out.

Seven-time world champion O’Sullivan had started the final quickly, reeling off the opening four frames in a run that included a 124 break, but the Thai world number 39 rattled off six consecutive frames thanks to some heavy scoring that included five breaks over 50.

O’Sullivan countered with three consecutive century breaks – 114, 116 and 136 – to regain the lead in a match of the highest quality, only for his opponent to level with a break of 77 then score three centuries of his own to clinch victory.

Un-Nooh’s unbelievable burst of scoring included breaks of 132 and 131, either side of his nerveless 147 in the penultimate frame, to provide a fitting climax.

The performance earned Un-Nooh a £175,000 purse in a season when he had failed to make it past the last 16 in any other tournament, while O’Sullivan had to be content with a £75,000 prize for the highest break.

“I just want to say well done to Thepchaiya who played unbelievable snooker,” O’Sullivan told the Yushan crowd.

“I watched him play against Judd Trump last night and he made the number one player in the world look second best. I was hoping he wouldn’t play like that today but he did – he gave me a good hiding, really.”