Middlesex 384 (Malan 166, Sowter 57*, Roland-Jones 54) and 342 (Robson 140*, Simpson 56) beat Glamorgan 171 (Lloyd 67, Helm 5-53) and 299 (Hemphrey 72, Labuschagne 51, Roland-Jones 5-68) by 256 runs
It took Middlesex 90 minutes on the final morning to take the last four Glamorgan wickets and inflict on them their first Championship defeat of the season and also the heaviest defeat the Welsh county have suffered in terms of runs.
The seventh-wicket pair of Charlie Hemphrey and Graham Wagg resisted for 50 minutes to share a partnership of 62 before Hemphrey's vigil, lasing more than five hours, ended. He had faced 254 balls which included a six and eight fours before he became the second Glamorgan opener in the innings to feather an innocuous delivery down the leg-side to the wicketkeeper.
It was a disappointing end to a chanceless innings, but Hemphrey showed that he has all the attributes to develop into a successful opener as he comes to terms with his first season in county cricket.
Wagg went shortly afterwards for 40, guiding a delivery from Toby Roland-Jones to second slip, and the Middlesex seamer, armed with the new ball, removed Lukas Carey's off stump to claim his fifth wicket to end with 5 for 68 for the innings and his ninth wicket for the match Former England bowler Roland-Jones has been a revelation since returning from injury and indifferent form, claiming 19 wickets in the last two games.
"It's been great to be back and contributing," Roland-Jones said. "And after such along time out with injury it's taken some time to find my rhythm again. I'm over that now and hopefully we can carry this success on for the remainder of the season."
Facing defeat, Marchant De Lange decided it was time for some lusty blows, and when Tim Murtagh was recalled, also with the new ball, De Lange struck him for 24, with two sixes and three fours, in the only over he bowled before being replaced.
After De Lange and Michael Hogan had enjoyed themselves with a rapid partnership of 35, the fun ended when Nathan Sowter had Hogan caught on the long-off boundary for 22, with De lange undefeated on 45.
Hemphrey, who top scored with 72 for the home team said: "After some missed chances in their first innings and tumbling to 25 for 5 at the end of the day, we were always playing catch up, and from then on Middlesex had the momentum and came at us hard. We fought back in the second innings to get near 300, and it was nice to contribute but Middlesex thoroughly deserved their win."