LONDON, May 5, 2025 (BSS/AFP) - Zhao Xintong moved seven frames away from becoming the first Chinese player to win the world snooker championship after building an 11-6 lead over veteran Mark Williams on Sunday's opening day of the final.

The 28-year-old Zhang left three-time world champion Williams playing catch-up after he made a blistering start to take the first session 7-1 at the Crucible Theatre.

But the 50-year-old Williams, bidding to become snooker's oldest world champion, fought back in the evening session.

That still left him five frames behind in the best-of-35-frame contest.

Williams is attempting to surpass Ronnie O'Sullivan, who was 46 years and 148 days old when he won his modern-day record-equalling seventh title in 2022.

The Welshman has reached the final despite his age and eyesight problems.

Zhao, playing as an amateur as he continues his comeback after a 20-month ban for involvement in a betting scandal, came through four rounds of qualifying.

He also produced a stunning display to thrash O'Sullivan 17-7 with a session to spare in his semi-final.

On Sunday, Zhao, the 2021 UK Championship winner, started in commanding style by taking each of the first three frames, including two century breaks.

Williams reduced fellow left-hander Zhao's lead to 3-1.

Following the mid-session interval, Zhao, only the second player from China to reach the world final after Ding Junhui, restored his three-frame advantage with a break of 57.

Williams found some form with a break of 61, only to misjudge a cannon off a black with the frame at his mercy. He was then unable to make a fine cut on the red and Zhao cleaned up.

Zhao wrapped up the first session in style, making a break of 104 before a superb plant on a red led to a contribution of 83 that put him six frames ahead.

Williams won Sunday evening's opening two frames.

But Zhao, in his first world final, regained control with a break of 71 to go 8-3 up before taking the next to restore his six-frame lead.

Williams went 23-0 ahead in the 15th frame only to let Zhao back in with a couple of missed reds.

Zhao then produced a superb positional pot, as he went around the angles from red to blue, that sparked an impressive break of 96 and a 10-5 lead.

Williams was on the brink of winning the next frame with a break of 63 only to miss a clinching red. Zhao then held his nerve superbly with a clearance of 71 to restore his six-frame advantage at 11-5.

Sunday's final frame proved a nervy affair before Williams, benefiting from a fortunate snooker behind the green, reduced his arrears to five frames.

The final resumes at 1200 GMT on Monday.