.Marnus Labuschagne concluded his county period at Glamorgan with a record-breaking bowling efficiency during the course of Friday's T20 Burst match against Somerset in Cardiff.The Queensland leg-spinner asserted career-best figures of 5-11 from 2.3 overs, featuring a triple-wicket maiden, to help spin Somerset for 123 in 13.3 overs at Sophia Gardens.It was actually the most effective bowling performance by a Glamorgan gamer in the T20 format, improving Graham Wagg's 5-15 versus Worcestershire in June 2013. Carried right into the attack in the tenth over, Labuschagne cleared away competing leader Lewis Gregory just before tidying up Somerset's rear, with his four remaining terminations each bowled.Gregory's departure triggered an agitated collapse of 7-35, with Glamorgan navigating towards a commanding 123-run victory.Watch every round of the England v West Indies examination collection LIVE & unique to Fox Cricket, on call on Kayo. New to Kayo? Start your cost-free test today > Marnus Labuschagne of Glamorgan. Picture through Dan Istitene/Getty ImagesSource: Getty ImagesEarlier, Glamorgan uploaded 4-243 coming from its twenty overs, the greatest team overall coming from this season's T20 Blast, along with captain Kiran Carlson slapping a career-best 135 (64) after winning the shake and also picking to bat first.However, it had not been good enough for the Welsh county to apply for the knockout blows, finishing sixth in their team's status along with six victories coming from 13 encounters.Labuschagne, who will certainly return home to Australia this week, completed the T20 Blast with 228 perform at 20.72 as well as 15 arches at 12.86.