Martin Guptill struck an assured, unbeaten half-century to guide Derbyshire to their first LV= County Championship away victory this season with a six-wicket success over Glamorgan at Cardiff.

The New Zealand opener was the pick of the batsmen as Derbyshire chased down 130 to win in 27 overs. Derbyshire took 23 points to Glamorgan's four. It was Glamorgan's fourth defeat of the season.

Despite Guptill's efforts Derbyshire, who go up to fifth place in Division Two with their second win, did not have it all their own way.

James Harris broke through with the second ball of the innings to have Wayne Madsen well caught for a duck at second slip by Ben Wright, and in the eighth over Chesney Hughes gave a simple catch to Glamorgan captain Alviro Petersen at mid-on off Englishman Graham Wagg.

At that stage Glamorgan might have fancied causing an upset.

But Guptill looked in fine touch, dealing mainly in boundaries. He particularly took a liking to Harris, striking six fours off his bowling - three in one over. Harris was withdrawn from the attack after conceding 41 runs in his first six overs.

Derbyshire had reached the halfway point in their run chase when Guptill planted Jim Allenby over long-on for six to bring up his half-century out of 71 for two in 43 balls.

There was some respite for Glamorgan when Will Owen, in his opening over, trapped first-innings centurion Wes Durston lbw on the back foot to leave Derbyshire 75 for three. It ended a third-wicket partnership worth 56 in 6.3 overs.

On the stroke of lunch Dan Redfern chipped Owen to mid-off as Derbyshire reached 85 for four.

After the interval Ross Whiteley proved to be the more productive half of the fifth-wicket partnership, striking 30 off 34 balls, but it was left to Guptill to seal the win with a six off Dean Cosker. Guptill finished 70 not out from 72 balls with 52 of his runs coming in boundaries.

Victory was sealed 32 minutes after lunch with 61 overs of the day still remaining.

Glamorgan's second innings had lasted only 25 minutes on the final morning after they had resumed on 250 for seven - a lead of 96.

Tim Groenewald, armed with the second new ball, struck with the fourth ball of the day to trap Wagg lbw.

And from 253 for eight the home side found themselves 262 for nine in Groenewald's next over when Mark Wallace was caught behind for 70.

The final pair of Cosker and Owen did their best to hang around, but the end of the innings came when Cosker was bowled shouldering arms to Tony Palladino.