|Venue: Crucible Theatre, Sheffield Dates: 18 April-4 May|
|Coverage: Watch live on BBC TV, HD, Red Button, Connected TV, online, tablets, mobiles and BBC Sport app. Full details here.|
Mark Davis says his failure to make the most of his early dominance against Ding Junhui cost him a place in the second round of the World Championship.
Davis led 4-0 but missed chances in the next three frames and was pegged back to 4-3 before eventually losing 10-7.
"I didn't take advantage when Ding was struggling," he told BBC Sport.
"My safety wasn't tight enough and I didn't score heavily enough. You have to win frames in one visit against these guys; I just didn't do that."
Davis, the world number 18 from St Leonards, had to win three qualifying matches to make the main draw at the Crucible and looked match-sharp and confident in the early stages of Monday's first-round opening session.
World number three Ding responded to get to within a frame and then began to show some of his best form, but Davis, 42, was convinced he still had enough opportunities to progress.
"Even though he scored a lot better in the last few frames I was still getting chances," Davis said after his 10th Crucible appearance in a 24-year professional career.
"I didn't miss loads of balls but I was running out position at 30 or 40 and you can't do that.
"It was a big frame to lose to go 7-6 down. I should have gone 7-6 up. I had a really good chance and completely messed it up. I think that was the turning point.
"If I had won that who knows what would have happened. He scored well but he still made mistakes and I had plenty of chances."
Despite his early exit, four-time ranking event semi-finalist Davis did manage to hit his first Crucible century - and he was able to smile about a maximum break blunder by his opponent.
The Chinese star had already potted 12 reds and 12 blacks in frame nine, only to lose concentration and screw back for the blue when potting the 13th red.
Ding laughed when he realised his error, which cost him a potential £30,000 in prize money.
Davis said: "It tells me he was really focused. He was so focused that he just wanted to keep potting balls. It was a strange one.
"I just said to him 'you have too much money mate, you're not even going for them any more'."