Chasing a target of 231, the deteriorating light became too poor to continue immediately after former Yorkshire player Alex Wharf had been dismissed by Darren Gough, to leave the Dragons on 135 for seven in the 30th over.

Robert Croft got Glamorgan's reply off to a positive start and he had contributed 25 to an opening stand of 35 inside eight overs with David Hemp when he drove Rana Naved-ul-Hasan to Gough at mid-on.

With the weather closing in, Glamorgan were ahead of the required rate until Mike Powell steered Rana to Richard Pyrah at backward point and the accurate Deon Kruis bowled Tom Maynard to return the tidy figures of one for 26 from eight overs.

Glamorgan slumped to 71 for four in 16 overs as Gough bowled Jamie Dalrymple's and rain was starting to fall when Richard Pyrah bowled David Hemp.

Although the rain stopped, bad light made it impossible to complete the match.

The bulk of Yorkshire's runs came from a 164-run partnership for the third wicket between Jacques Rudolph and Anthony McGrath.

After a slow start to his innings, South African Rudolph dashed on to 84 off 93 balls with 11 fours and a six while McGrath smashed 73 from 96 deliveries with four fours and three sixes.

Full match report, pictures and reaction in tomorrow's Yorkshire Post Sports Monday supplement.