Leicestershire 173 for 6 (Cobb 42) beat Derbyshire 171 for 3 (Durston 55*, Rana 2 for 18) by four wickets
Former Derbyshire all-rounder Wayne White condemned his ex-team mates to a fifth Friends Life t20 defeat as Leicestershire won a thrilling North Group match by four wickets off the last ball at Derby.
White hit the final ball from Rana Naved-ul-Hasan to the fine leg boundary to clinch victory and overhaul Derbyshire's 171 for 3 which was built around Wes Durston, who batted through the innings for an unbeaten 55 from 50 balls.
Leicestershire looked out of it needing 37 from the last three overs but after 23 came from the penultimate over from Alex Hughes, White and Robert Taylor saw their side home. It was a jolt for Derbyshire who had amassed their biggest total in this season's competition.
Leicestershire sped off from the outset as Josh Cobb and Abdul Razzaq took 66 from the first five overs. Cobb pulled Jon Clare for six in an over that cost 20 and Razzaq drove Hughes for three fours before he carved the spinner into the hands of cover.
Cobb hoisted Durston for another six but Rana beat him with a slower ball that he chipped to midwicket and after 10 overs, the Foxes needed another 82 with a lot resting on the West Indies batsman Ramnaresh Sarwan. With the pressure building, he was run out by a direct hit for 22.
The game appeared to be in Derbyshire's grasp but when Chesney Hughes dropped White at short fine leg off the fourth ball of the last over, White made them pay by clipping Rana for four to clinch a dramatic victory.