Result: Worcestershire Rapids (152/6; Rutherford 33, Cox 31*; Carse 2/16, Raine 2/25) beat Durham (114/4; Lees 52*) by 4 wickets on Duckworth/Lewis
Durham suffered their first defeat of the campaign in the Royal London One-Day Cup as Ross Whiteley and Ben Cox guided Worcestershire Rapids to a four wicket success under the Duckworth-Lewis Method at Blackfinch New Road.
Despite the best efforts of Brydon Carse, who delivered two wicket-maidens in returning figures of 2/16 in his five overs, Cox and Whiteley tipped a see-saw contest in favour of the Rapids with a half century stand for the sixth wicket
Durham were restricted to 114-4 in 27.2 overs before the heavens opened after being put into bat despite Alex Lees scoring his first List A half century for the County.
The Rapids were eventually set a 152 target in 24 overs via the Duckworth-Lewis Method after a delay of more than four hours.
Hamish Rutherford and Riki Wessels quickly established a position of command for the home side as the half century came up in only 4.5 overs.
The former deposited Matt Salisbury and Matt Potts for six on his way to 33 from 22 balls before nicking a delivery from Ben Raine through to keeper Cameron Bancroft.
Wessels was also full of attacking intent in making 29 until he was caught off a skier by Bancroft running back towards the boundary from a Salisbury delivery.
Mitchell (0) dragged a slower delivery from Carse onto his stumps and struck again in his next over as Tom Fell (7) went for a pull and top-edged a simple catch to Graham Clark at mid on.
When Brett D’Oliveira (6) was caught behind off Matt Salisbury, Worcestershire had lost four wickets for 10 runs in the space of five overs.
But Whiteley (26) and Cox turned the game back in the Rapids favour by adding 51 in seven overs before the former provided Bancroft with another catch, this time off Raine.
Cox and Ed Barnard (12 not out) saw the Rapids over the finishing line.
Durham had been put into bat and new ball bowler Charlie Morris made the first breakthrough in his third over as Scott Steel (14) went for a drive and was bowled by a delivery which came back sharply.
Lees looked in good form and cover-drove Morris for successive boundaries but Clark (10) departed as he pulled a short delivery from Josh Tongue straight to Whiteley at deep square leg.
Durham skipper Bancroft, unbeaten in the first two games of this competition, moved confidently onto 20 but the introduction of Mitchell into the attack led to his downfall.
The Australian batsman drove loosely and Morris held onto the chance at short third man with the total 78-3.
Lees completed his half century off 75 deliveries with four boundaries but Harte (14), making his first One-Day Cup appearance of the campaign, fell shortly before an elongated long break.
He took a stride out of his crease before driving at D’Oliveira and was stumped by Cox.
Only two more runs were added before the players were forced off by driving rain.
Durham move on to Birmingham on Friday, where they face Warwickshire before returning to Emirates Riverside this Sunday.