Derbyshire 84 for 1 (Madsen 39*) beat Yorkshire 83 for 3 (Malan 50) by nine wickets
Wayne Madsen's unbeaten 39 off 21 balls saw Derbyshire to a nine-wicket victory over Yorkshire in his 400th appearance for the county as Falcons chased 84 in an eight-over Vitality Blast fixture at Headingley.
Australian overseas allrounder Hayden Kerr set Derbyshire on their way to a second North Group win in three games with two wickets in the first over of the match, which started at 8.35pm following rain, and the left-arm seamer was excellent in returning 2 for 18 from two overs as the Vikings were restricted to 83 for 3.
Having been inserted, opener Dawid Malan's 50 off 23 balls underpinned their innings. But the England left-hander's second successive half-century was given little support, and that was key to a second defeat in four games.
Madsen, 38, is the 14th Derbyshire player to play 400 games across all formats. He came to the crease at 15 for 1 at the start of the third over, hit his first ball for four and top-scored. He shared an unbroken second-wicket partnership of 69 with Shan Masood as victory was secured with three balls remaining.
Play was delayed by two hours and five minutes due to rain. Derbyshire then made the perfect start when Adam Lyth chipped the first ball of the match, from Kerr, to mid-off before Shadab Khan was caught behind trying to scoop five balls later as the score slipped to 2 for 2.
But Yorkshire recovered to reach the end of the powerplay - 2.2 overs - at 21 for 2, including Malan pulling Sam Conners into the Western Terrace for six. Shortly afterwards, he pulled Kerr over midwicket for a flat six as the score moved to 36 for 2 in the fourth over.
Malan's innings was more muscle than finesse, though he did cheekily ramp Scotland left-arm spinner Mark Watt for four as he closed in on a fifty off 22 balls. However, Watt had him caught at deep midwicket next ball as the score fell to 65 for 3 in the seventh over.
It was not only the second time in as many games that Malan had fallen for exactly 50 - he did so in defeat against Leicestershire here on Sunday - but also the second time he had departed the ball after reaching his milestone.
Having been 55 for 2 after five overs, the Vikings would have hoped for more. But they only hit two fours and a six in the last three overs, and a four and a pulled six from Will Fraine came with the last two balls of the innings from George Scrimshaw.
In Derbyshire's reply, Luis Reece was run out coming back for two to deep square-leg following a mix-up with opener Masood at the start of the third over. But Madsen was quickly into gear, whipping his first ball for four against seamer Matthew Revis.
Pakistan left-hander Masood crashed Jordan Thompson for six over long-on to take his side to 44 for 1 after four overs and slog swept Adil Rashid over midwicket shortly afterwards.
However, this was milestone man Madsen's night. He sliced Haris Rauf for six over wide third and, with eight needed from the last over, reverse swept Rashid for six with the final over's first ball.
