Woakes and Wright wreck Derbyshire
Warwickshire 242 for 6 (Ambrose 77*) beat Derbyshire 137 (Piolet 4-31) by 105 runs
Warwickshire went top of Group C as they crushed a weakened Derbyshire by 105 runs in a one-sided match.
Derbyshire's chances of chasing down Warwickshire's 242 for 6 vanished in the first five overs when Chris Woakes and Chris Wright reduced them to 25 for 4, before Steffan Piolet claimed his best one-day figures of 4 for 31 as the home side were skittled for 137 in 32.1 overs.
Tim Ambrose anchored the Bears innings with an unbeaten 77 from 92 balls and shared stands of 90 in 17 overs with Darren Maddy and 76 in eight with former Derbyshire skipper Rikki Clarke, who provided late acceleration with 48 from 29 balls.
Derbyshire went into the match without attacking New Zealand batsman Martin Guptill who has a broken finger and three front-line bowlers, and the game was over as a contest once Woakes and Wright had blown away the top order.
Woakes, who took 3 for 46, struck twice in his opening over before Wright removed Wayne Madsen with an unplayable lifter, leaving Piolet to cash in with only Jon Clare offering any real resistance with 57 from 54 balls.
With their own hopes of reaching the semi-finals damaged by two defeats in the opening three games, Derbyshire rested pace bowlers Tony Palladino and Tim Groenewald along with spinner David Wainwright.
Mark Turner bowled well on a slow surface to remove both openers and when a direct hit accounted for captain Jim Troughton, the visitors had some rebuilding to do at 66 for 3 in the 14th over.
But Ambrose and Maddy worked the ball around to establish a platform for Clarke who opened his shoulders to drive and pull three sixes before he holed out to long on to give Alex Hughes his first wicket for Derbyshire.
Derbyshire's reply began disastrously when Chesney Hughes played on and Wes Durston was caught behind first ball and the slide continued with Madsen edging to second slip and Dan Redfern falling to a loose drive.
Piolet then demolished the lower order to reduce the home side to 86 for 7 and only some defiant blows by Clare gave the innings a measure of respectability. He pulled Woakes into the car park to reach his half century and was last out when he sliced Wright to third man to give Warwickshire their second victory over Derbyshire in the competition.