Michael Smith's impressive week at the SINGHA Beer Grand Slam of Dartsin Wolverhampton continued with a win over Adrian Lewis.

He nows plays World number one Michael van Gerwen in the semi finals.

Smith, meanwhile, won through to his first major semi-final as he continued his fine week in Wolverhampton with a 16-11 defeat of Adrian Lewis, who was punished for missed doubles throughout an enthralling contest.

Lewis' opening 114 checkout was followed by Smith taking leads of 3-1 and 7-2 as he capitalised six times on missed doubles by his opponent to take command of the contest.

Lewis finished 121, 56 and 88 as he cut the gap to 7-5, only to see four further misses in the next two legs allow Smith in twice on double ten as he restored a four-leg cushion.

Lewis again hit back, inspired by a trio of 180s in as many legs as he reduced the gap to 9-8, but Smith crucially denied him a chance to level by following a maximum with a superb 126 bull finish to restore breathing space.

Four misses at tops in the next by Lewis were punished by Smith before the St Helens ace moved 14-8 up.

The roles were reversed as Smith missed eight doubles in the 23rd leg, and Lewis would win three out of four to hit back to 15-11, but the former World Youth Champion held his nerve by landing a tenth 180 and double ten to seal the win.

"I'm over the moon," said Smith. "Adrian was the better player - he battered me - but he let me in at the crucial times and I took my chances.

"He could have been six or seven legs up but I knew if I was going to win that I had to take my chances, and I did that when they came and it's a massive relief.

"I don't think my game was there tonight but I finished well and there's no reason if I put it all together that I can't win this tomorrow."

Smith had been defeated 16-3 by Phil Taylor in last year's quarter-finals, and admits that loss has spurred on his challenge in Wolverhampton this week to reach his first major semi-final.

"I'm glad that I'm finally into a semi-final," said Smith. "I wanted to put last year to bed because I was a spoiled kid.

"I've worked on my game so hard and I think this tournament has shown people what I can do and how much I've grown up in 12 months. I've won six or seven tournaments now on the floor but I want a TV major to my name now.

"I'm mixing it with the big boys now. I've shown for years that I can play darts but never done it on TV and I think I've done myself proud this week."

Van Gerwen is aiming to complete a clean sweep of major titles by adding the Grand Slam of Darts trophy to his impressive collection - and now has only two games remaining in that quest on Sunday following an incredible quarter-final win.

Van Gerwen averaged 111.05 and hit 12 maximums in sweeping aside Huybrechts, avenging his defeat to the Belgian at the same stage a year ago with a relentless display.

Finishes of 135 and 112 were followed by an 11-dart leg as van Gerwen made a flawless opening, with Huybrechts needing to take out 141 just to get off the mark.

After the next two were shared, van Gerwen won nine straight legs to move from 4-2 to 13-2 in amazing fashion, hitting a ten-dart finish, seven perfect darts in one leg, two double 18s to finish 92 in another and a 127 checkout.

Huybrechts finished 116 to respond and also landed double eight to claim his fourth leg, but van Gerwen would not be denied as he completed a dozen 180s on his way to victory.

"This is an amazing win," said van Gerwen. "This is how I want to perform all the time and it's not that easy, but I'm really glad I did it tonight.

"I lost to Kim in the quarter-finals last year and I didn't want to do that again. Kim's a fantastic player but I kept him under pressure from the beginning to the end.

"I played amazing and in the last two games I've averaged 109 and 111, and I want to keep this going now. Sometimes when you play this well, as a darts player it's the best feeling you can have and I had that tonight."

Sunday afternoon's other semi-final sees reigning Grand Slam of Darts champion Phil Taylor face 2012 winner Raymond van Barneveld, with the £400,000 event then concluding with the final in the evening session.

SINGHA Beer Grand Slam of Darts Saturday November 14 Quarter-Finals Michael Smith 16-11 Adrian Lewis Michael van Gerwen 16-4 Kim Huybrechts Best of 31 legs Sunday November 15 Afternoon Session (1pm) Semi-Finals Michael van Gerwen v Michael Smith Raymond van Barneveld v Phil Taylor Best of 31 legs Evening Session (7pm) Final van Gerwen/Smith v van Barneveld/Taylor Best of 31 legs