Ben Stokes batted fluently to fifty (off 39 balls, including eight boundaries), but then powered the ball straight to Wayne White at cover off Matthew Hoggard with the total at 114.
The Dynamos were 127-5 after losing two wickets in the successive overs, with Benkenstein bowled by Henderson for 4 in the 20th over and Muchall (32) caught behind off Hoggard after the ball flew high up into the air off the batsmen’s gloves.
Breese ran 20 singles keeping Blackwell on strike, and went on to score 44 off 49 balls before he was caught on the boundary by Josh Cobb off Henderson with 2.2 overs remaining, bringing their 146 run partnership to a close.
With 1.1 overs remaining Blackwell was caught and bowled by Wyatt having scored 98 from 64 deliveries.
Two wickets fell in two balls with the Dynamos 282-9 after Malik bowled Mitchell Claydon for 1 and Rushworth the following ball when he was caught by Hoggard.
Durham were awarded six runs after the Foxes were penalised for a slow over rate and therefore finished their forty overs with 285-9 on the board.
Graham Onions bowled Jacques du Toit with the final delivery of the third over of the Foxes innings to give the Dynamos an early boost.
Cobb and Taylor added 97 before the latter he was caught at short fine leg by Muchall off Blackwell for 29. Paul Nixon was out lbw after facing just three balls taking Blackwell’s wicket tally to two.
The spinner picked up a third victim in the 27th over, bowling the Foxes top scorer, Cobb, for 87. A cracking catch by Breese at mid off, off Claydon, saw Boyce dismissed for 35 in the 30th over and all but ended any chance of the Foxes sneaking the win, with the hosts requiring over 100 off the last ten overs.
Claydon claimed his second scalp in the 32nd over, Dixey out lbw for 5 leaving the Foxes requiring 98.
Ben Stokes featured in the final four wickets, Henderson caught by Benkenstein for 11, Malik caught behind without scoring and finally the Cumbrian dived in from the boundary to give Chris Rushworth his only wicket of the innings, dismissing White for 21.
Hoggard was bowled for 8 earning Durham victory by 69 runs and Stokes finishing with figures of 3-6.