Twenty20 Cup, Headingley
Yorkshire 134-9 (20 overs) lost to Derbyshire 181-2 (20 overs) by 47 runs
Vaughan had a chastening day as Yorkshire were thrashed
England captain Michael Vaughan was out for a second-ball duck as Yorkshire lost by 47 runs to Derbyshire in their opening Twenty20 Cup match.
Chasing a stiff 182 target, Yorkshire never recovered from a poor start and finished on 134-9.
Greg Smith was the Derbyshire batting hero with a 62-ball century reached off the penultimate ball of the innings.
Charl Langeveldt then claimed 4-9 off four overs to secure victory for the visitors at Headingley.
Derbyshire won the toss and took full advantage of their decision to bat first.
Smith was joined by West Indian Wavell Hinds in a second wicket stand of 149 in 16 overs, with Tim Bresnan the only Yorkshire bowler to claim a wicket.
Both batsmen enjoyed lives, with Hinds surviving two chances and Smith one, but they were a class above Yorkshire's sorry efforts.
Vaughan, who was playing his first twenty20 game for Yorkshire and now has two ducks in his three attempts at the shortest form of the game, slashed Langeveldt straight to Smith at backward point.
Andrew Gale had already fallen to Graham Wagg in the first over and it became 30-3 with the dismissal of Jacques Rudolph, who hit Wagg straight into the air to give Rikki Clarke an easy catch.
Anthony McGrath and Gerard Brophy tried to pull off a rescue act with a 70 stand in eight overs during which McGrath completed his 50 off 41 balls with four fours and a six.
But when Brophy was stumped by Jamie Pipe off Nayan Doshi with the score exactly 100 it triggered a collapse and Derbyshire ran out easy winners.