Paul Collingwood's highest one-day score for two years helped Durham Dynamos beat Derbyshire Falcons by 43 runs under the Duckworth/Lewis method in their Yorkshire Bank 40 match at the Emirates Durham ICG.
Collingwood had a top score of 32 in the competition last year but made 79 from 83 balls as Durham totalled 273 for six. The hosts took 69 off the last six overs with Gordon Muchall, pictured, scorching to a 30-ball half-century and remaining unbeaten on 57.
Left-arm paceman Mark Footitt was the pick of Derbyshire's weakened attack, taking three wickets, while 19-year-old off-spinner Peter Burgoyne also performed creditably.
Derbyshire were 70 for three after 16 overs, Graham Onions taking all the wickets, when the drizzle became too heavy for play to continue.
After the away side opted to field, Mark Turner's first three overs back at his original club cost 25 and it was a surprise when Durham opener Phil Mustard stepped back in the seventh over in an attempt to hit him over extra cover and missed a straight ball.
The early loss of Mark Stoneman ensured Collingwood was content to accumulate steadily except for when he drove 21-year-old medium-pacer Alex Hughes for a straight six.
He then pulled Turner for his third four to reach 50 off 59 balls before falling in the 36th over, lbw when trying to hit a swinging yorker from Footitt to leg.
Scott Borthwick made 40 and Ben Stokes 43, both scoring at around a run-a-ball, although Stokes made a quiet start.
On 14, he was dropped at deep midwicket by Billy Godleman but when Turner returned, Stokes drove two straight fours in an over and then hammered a straight six off left-arm spinner David Wainwright before driving Footitt to mid-off.
Derbyshire captain Wayne Madsen tried three overs of his own off-spin but, in the third, Muchall lofted three successive balls over mid-off for four.
Muchall also drove Footitt over long-on for six and cleared the midwicket rope off Wainwright as the 38th over yielded 15 runs.
In Derbyshire's reply, Chesney Hughes hit Onions' third and fourth balls for four then fell lbw to the fifth, trying to turn a yorker to leg.
Shivnarine Chanderpaul made 11 before he played back and edged to Mustard and, in Onions' final over, Paul Borrington departed for 32 when he pulled a catch to midwicket.