Glamorgan 315 and 219 beat Middlesex 160 and 296 by 78 runs
Glamorgan secured their first Championship victory at Lord' s in 56 years after mopping up the last six Middlesex wickets in just over two hours to win by 78 runs and with 62 overs to spare.
It was former Middlesex all-rounder turned Glamorgan captain Jamie Dalrymple who proved they key figure in securing his county's first win of the Division Two campaign, leaving the hosts to contemplate their second defeat in as many starts. It was Dalrymple's off-spin that accounted for Middlesex top-scorer Dawid Malan for an excellent 115, a dismissal that ultimately exposed the Middlesex tail to the second new ball and made the result a foregone conclusion.
Resuming on his overnight score of 94, 22-year-old left-hander Malan rocked back in the fifth over of the day to crack a rasping back foot force to the ropes at cover to move to 99. Three overs later, he squirted the 16th four of his 212-ball stay off an open bat face and through the gully to third man to post his second first-class hundred.
It was Malan's first four-day ton since he scored 132 on his Middlesex Championship debut against Northamptonshire at Uxbridge in June 2008. His fifth-wicket partner, night watchman Iain O'Brien, enjoyed a let-off with his score on 13 when Dalrymple downed a regulation chance at second slip off Huw Waters, but O'Brien obligingly edged the very next delivery to third slip where Mark Cosgrove this time pocketed a sharp, low chance.
Malan's vigil ended after four hours to a rare lapse of concentration. Moving back on his stumps and aiming to cut a ball that turned back into him, the left-hander bottom edged and wicketkeeper Mark Wallace did the rest.
Four balls later Malan's fellow left-hander, John Simpson (12), pushed at a tuning delivery from left-arm spinner Dean Cosker to be caught at slip by who else but Dalrymple.
Glamorgan took the new ball shortly afterwards, sparking a counter-attack from Middlesex all-rounder Gareth Berg who clubbed six fours in a cameo 28 before a leaden-footed drive at a Waters away-swinger brushed the edge to give Wallace another victim.
Home captain Shaun Udal (23) then carved a wide one from Waters into the hands of cover point and, 13 balls after lunch, last man Steve Finn was held at second slip by Dalrymple off the excellent Waters to wrap up a historic win for the Welsh county as Waters, the pick of their attack, finished with 4 for 39.