Yorkshire claimed a six-run win over Derbyshire in the Friends Life t20 as a brilliant all-round effort from Albie Morkel proved to be in vain.
South African Morkel followed up his best-ever 20-over bowling figures of 4-25 with an astonishing last over assault on Liam Plunkett that almost pulled off an improbable result for the hosts.
Derbyshire needed 32 to overhaul Yorkshire's total of 142-9, but although Morkel smashed Plunkett for three fours and two sixes, he failed to make contact with the last ball and was left unbeaten on 51 from 31 balls.
Yorkshire had looked on course for a more challenging total after Phil Jaques and Dan Hodgson established a solid platform with a second-wicket stand of 49 in six overs.
But their progress stalled when Jaques was bowled sweeping at Dan Redfern for 22 in the 10th over and Morkel struck twice in the 12th to remove Dan Hodgson (31) and Andy Hodd (0).
Former Derbyshire batsman Gary Ballance threatened to swing the momentum back towards the home side with a useful 28 but the innings fell away after he skied Morkel to deep midwicket in the 16th over.
Mark Turner (3-21) varied his pace cleverly to run through the lower order and when Ryan Sidebottom pulled the last ball of the innings to midwicket, Yorkshire had lost eight wickets for 72 in 11 overs.
Derbyshire suffered a setback at the start of their reply when Durston slipped going for a single and had to retire hurt on eight, but Chesney Hughes and skipper Wayne Madsen took the score to 49.
But Yorkshire then struck twice in quick succession, Madsen being run out for 19 in a mix-up with Hughes, who was out next ball for 21 when he drove Azeem Rafiq to mid-off where Richard Pyrah held an excellent diving catch.
The spinners were hard to get away and Rafiq claimed another wicket when Redfern (9) cut tamely to point before Billy Godleman (8) was caught in the same position to leave Derbyshire on 67-4.
Morkel responded by driving Rafiq over long on for six and cutting Pyrah for four but despite his last over heroics, Plunkett had the final word when he delivered a dot ball to give Yorkshire only their second win in the North Group and dent Derbyshire's quarter-final hopes.