MARCUS Trescothick produced another T20 master class as Somerset moved to the top of the Friends Life South Group with a seven-wicket victory over Glamorgan at Taunton.

The skipper hit 58 off only 28 balls with a dazzling array of strokes to help his side reach a target of 167 with 26 balls to spare.

Teenager Craig Meschede also chipped in with a brilliant 53, including four sixes and three fours.

The Dragons had posted 166 for eight, Chris Cooke top scoring with 47 off 40 balls. Spinners Max Waller (two for 20) and Murali Kartik (two for 29) were the pick of the Somerset attack.

Glamorgan were soon 10 for two after winning the toss in perfect batting conditions. Mark Cosgrove was caught behind chasing a wide one from Peter Trego and Jim Allenby run out by Trescothick as he was sent back seeking a quick single to cover.

Alviro Petersen looked in prime form moving to 35 off 16 balls, with five fours and a six, before being undone by a quicker ball from Kartik, which bowled him attempting to cut.

Mark Wallace was bowled by a classic Waller googly which just clipped his off-stump and Gareth Rees was well caught by a diving Kartik to give the young leg-spinner his second wicket.

Glamorgan looked to be in trouble at 84 for five, but Graham Wagg hit a brisk 19 to help Cooke add 36 for the sixth wicket - the latter hitting a big six over mid-wicket off Kieron Pollard in an impressive contribution.

Trego set the tone for Somerset's reply by hoisting the first ball of the innings from Robert Croft back over the bowler's head for six and dominated an opening stand of 28 in three overs with Trescothick before playing on to Wagg.

The Somerset skipper then took over, smashing four, six, four, four off successive deliveries from left-arm seamer Alex Jones as his side raced to 72 for one off their six overs of power play.

Trescothick reached his half-century off just 24 balls, with his second six, and had already struck eight fours.

When he was yorked by Allenby, Somerset needed only a run a ball to win. Meschede launched Dean Cosker for successive sixes into the Sir Ian Botham Stand to ensure the end was not far away.

The 19-year-old Johannesburg-born player - with a British passport - also hit consecutive sixes off Croft to reach his first half-century in domestic cricket.