Durham boosted their chances of qualifying from the northern group with a second win at the expense of Derbyshire who have now lost their opening two matches.

Paul Collingwood's best one-day innings of 89 proved a match-winning performance on a slow pitch and Derbyshire never really threatened to overhaul Durham's total of 204-6.

Of the leading batsmen only Rob Bailey reached 50 but his dismissal shortly after Dominic Cork's ended the home side's chances and they were well beaten by 29 runs with 2.4 overs to spare.

Tim Munton's opening spell of 3-18 in eight overs was Derbyshire's best phase of the match but he was guilty of dropping Collingwood when the right-hander had made only 37.

That was a costly miss as Collingwood supervised half-century stands with Jon Lewis and Nick Speak and although there were few boundaries in the Durham innings, a total of over 200 was always going to be awkward on such a slow pitch.

Collingwood then made the first breakthrough when he trapped Steve Stubbings lbw in the 16th over and although Mathew Dowman played several flashing strokes, he was neatly stumped by Andy Pratt for 15.

Michael Di Venuto failed again when he edged James Brinkley into his stumps and although Bailey and Cork added 44, the game turned in the space of four overs.

Cork was caught behind as he tried to run Ian Hunter to third man and then Bailey came down the pitch to Nick Phillips, was beaten in the flight and stumped for 50.

Karl Krikken drove back a return catch to Phillips and although Luke Sutton played some defiant strokes, he could not halt Durham's victory charge.

Richard Illingworth was run out by a direct hit from square leg by Lewis, Paul Aldred was caught and bowled by Michael Gough and Sutton was yorked by Neil Killeen.

Durham now have consecutive home games against Notts and Leicestershire but Derbyshire face an uphill task if they are to reach the quarter-final stage.

© CricInfo Ltd.