PICTURES and interviews by Tai Chengzhe
Day's 147 came in the last frame of a 4-1 win, having already made a 139 in the second frame. The Welshman's previous tournament high break was 145, made ten years ago.
It's the second maximum of the season, following Aditya Mehta's at the Paul Hunter Classic, and 107th in snooker history.
Day said: "It was the perfect way to finish a match. I potted a long red and cannoned the black nicely, and I knew I was cueing well. To be honest I was thinking about the 147 from the start of the break. It was just about trying not to be nervous. The only shot I felt nerves on was the green. It was a tricky shot but it went in and I managed to clear the table. It's a great feeling, I'm really happy. I only had about one hour of sleep last night so I'm still tired - maybe I should try that more often! Hopefully this is a stepping stone for Chengdu and I can have a good run there."
Day went on to beat Graeme Dott 4-1, with top breaks of 76, 62 and 67, in the last 16 to reach the quarter-finals.
