Notts Outlaws were defeated by four wickets at the Uptonsteel County Ground, as Leicestershire Foxes chased 157 with 14 balls to spare.
Rehan Ahmed's maiden T20 half-century was the standout contribution for the hosts, while Calvin Harrison took two wickets and three catches - including an astonishing acrobatic attempt - for the visitors.
The Outlaws were bowled out for 156 in 19.3 overs, with Lyndon James top-scoring with 30 from 26 balls.
Daniel Sams hit three sixes in his 28 from 17, but the Foxes were impressive with the ball, led by Logan Van Beek (three for 15) and Tom Scriven (two for 18).
Joe Clarke (24 off 12) and Freddie McCann (17 off 11) gave the visitors some powerplay punch after the Foxes opted to bowl first, but they were three down by the end of the seventh over.
Clarke perished at deep backward square off Sam Wood and Jack Haynes was caught behind off a bottom edge before McCann, who cleared the ropes off Wood and Logan van Beek, was beaten by Rehan’s third delivery and stumped.
Tom Moores, matchwinner last time out in Birmingham, picked out deep midwicket as the home attack drove down the scoring rate before the Outlaws lost James for 30 from 26 thanks to a brilliant run out executed off his own bowling by Scriven.
Sams and Montgomery counter-attacked, adding 47 in 25 balls as the former twice launched Rehan over the on-side boundary before pulling a huge maximum off Scriven.
But Montgomery and Liam Patterson-White both found fielders, and Sams stretched for a wide ball and was caught behind. Van Beek took two in two to finish the innings, having Harrison caught at extra cover and Dillon Pennington bowled, the Foxes conceding just 18 runs in the last four overs.
Sol Budinger, superbly caught at mid-wicket by Harrison after 22 from 12, and Rishi Patel, top-edging a pull, were powerplay casualties in Leicestershire’s chase, which realised 50 for two. Shan Masood looked well set before being bowled by Harrison’s leg-spin for 27 off 22 but the Foxes were in a good position at 89 for three after 10 overs, needing 68 more as Rehan and Kimber began to cut loose.
Kimber eventually holed out for 35, Rehan was caught on the rope soon after going to 50, and Cox found a fielder too, before Mike struck the winning boundary.
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