Durham 142 for 5 (Myburgh 46, Gibbs 38) beat Derbyshire 141 for 6 (Khawaja 36) by 5 wickets
South African duo Herschelle Gibbs and Johann Myburgh steered Durham to a five-wicket win over Derbyshire in a tight Friends Life t20 North Division game at Derby.
Gibbs made 38 and Myburgh added 46 from 40 balls to win with seven balls to spare when a full toss from the former Durham pace bowler Mark Turner went for four byes.
Derbyshire began badly after electing to bat first, Wes Durston caught at slip in the first over without scoring and Ross Whiteley falling to a steepling top edge after hitting four boundaries in his 19.
Derbyshire's cause was boosted by a spate of wides and Australian Usman Khawaja top scored with 36. He was starting to time the ball well when he tried to cut a ball from Borthwick that bounced more than he expected and was caught behind.
Derbyshire had to be on top of their game to have any chance of denying Durham. They had Phil Mustard caught behind off Turner and then Ben Stokes fell to a tumbling catch by Poynton when he tried to run Tim Groenewald off the face of the bat.
Gibbs should have been stumped on 13 and that threatened to prove decisive when he launched Groenewald out of the ground, but David Wainwright found some turn to bowl him for 38.
Myburgh revived Durham by driving Chesney Hughes for a six and a four in an over which cost 16 but the game was back in the balance when he sliced Turner to point.
Durham needed 22 off the last three overs but the contest was settled when Gordan Muchall and Gareth Breese took 16 from Rana and the game ended on a note of anti-climax when Turner's full toss sped to the ropes.