Warwickshire 164 for 5 beat Yorkshire 161 for 8 by five wickets
Yorkshire's dismal Championship form carried over into the Friends Life t20 as they made a disappointing start to their campaign by losing to Warwickshire by five wickets with 13 balls remaining at Headingley.
It was the Bears second consecutive win and it was Will Porterfield who again led the chase towards a 162 target following his 83 against Durham at Riverside last night. He raced to his 50 from 21 balls - the same as Yorkshire skipper Andrew Gale had done earlier - and had hurried on to 64 from 34 deliveries with 10 fours when he was lbw sweeping at Adil Rashid.
Porterfield had already put on 71 in six overs for the second wicket with Neil Carter who was caught behind off David Wainwright for 27 soon after being struck on the chin by a short ball from Richard Pyrah.
Rashid, who had Varun Chopra lbw in the first over of the innings, also struck the ball after dismissing Porterfield by having Darren Maddy edging to wicket-keeper Gerard Brophy. The leg-spinner enjoyed figures of 3 for 28 from his four overs but Yorkshire's pacemen came in for some harsh treatment as Warwickshire grew in confidence.
Tim Ambrose (26) and Rikki Clarke (21) met few problems in seeing the visitors over the line with an unbroken sixth-wicket stand of 42 in four overs.
Put in to bat, Yorkshire began at a furious pace as Gale and Jonny Bairstow thrashed 52 together off just 23 balls with Gale going on to complete the third fastest half-century ever recorded by his side in the competition.
In Andy Miller's first over he was clubbed over long on for four and six by Gale, who then drilled Carter for three consecutive boundaries in an over which cost 18 runs. There was no stopping the rampant Gale and two more fours off Miller gave him his sixth boundary from seven deliveries before Bairstow moved into double figures by picking up a ball from Miller and striking it cleanly over midwicket for six.
The partnership was broken next ball when Bairstow cut Miller to Keith Barker at short third man and soon afterwards Gale completed his 50 from 21 deliveries with nine fours and a six.
But the running out of Gale for 54 applied the brake to Yorkshire's innings and they never regained their early momentum. He departed when Adam Lyth played to square leg and Steffan Piolet atoned for a misfield by knocking down the stumps with a direct hit with Gale out of his crease.
Lyth and Anthony McGrath put on 40 together for the third wicket before both fell to Maddy who also had Brophy caught on the boundary edge to give him three wickets for 10 runs in his two overs. Rashid and Ryan Sidebottom could do little to boost Yorkshire's score beyond 161 for 9.