Mohammad Amir was the pick of the Gloucestershire bowlers with 2 for 30, while Ryan Higgins held his nerve at the death to limit Jack Leaning to 13 from the final six balls
Canterbury: Gloucestershire 195-4, Kent Spitfires 190-5 - Gloucestershire won by five runs
Gloucestershire remain on course for the Vitality Blast quarter-finals after a tense five-run win over Kent Spitfires at Canterbury.
Ian Cockbain hit 64 and Glenn Phillips 62 as Gloucestershire posted 195 for 4, a total that was just beyond beyond the reigning champions.
Mohammad Amir was the pick of the visiting bowlers with 2 for 30, while Ryan Higgins held his nerve at the death to limit Jack Leaning to 13 from the final six balls.
Leaning finished unbeaten on 37 but was unable to hit the required 19 from the final over as Kent finished on 190 for 5. Alex Blake hit 36 to pass 2,000 Blast runs for the Spitfires and Jordan Cox made 32, but the hosts remain bottom of the South Group.
Kent won the toss and chose to bowl, handing a Blast debut to 19-year-old Jas Singh, but it was Leaning who opened the bowling and he struck in the first over to remove Miles Hammond for 4, after Tawanda Muyeye took a steepling catch.
Ian Cockbain made 64 as Gloucestershire beat Kent Spitfires [Alex Pantling/Getty Images]
Chris Dent and Cockbain took Gloucestershire to 49 for 1 after the powerplay and, although Qais Ahmad's next over went for just three, Singh's first over went for 26, effectively hitting him out of the attack.
Dent holed out to Qais in the next over and was caught at long-on by Blake for 40, but it did little to arrest the visitors' momentum. Cockbain smashed Qais back over his head for four to pass 50, before finally falling when he hit Matt Milnes to Blake at long-off.
When Matt Quinn went off injured after five balls of the 18th over, he was replaced by Joe Denly, who immediately bowled Jack Taylor for 12.
Phillips was dropped by Blake at the start of the 19th and he cut hit Milnes' next delivery, a full toss, for six to reach his half-century.
In a measure of how dismal Kent's title defence has been, when Grant Stewart's final over only went for six, home fans were relieved the visitors hadn't passed 200.
Kent kept up with the run rate for the first three overs of the chase, but when Josh Shaw came on from the Pavilion End, Muyeye was caught by the inrushing Ryan Higgins for 11.
With the required rate already edging above 12, Denly was caught by a diving Shaw off Tom Smith for 31 in the 10th over and Smith then returned the favour in the 12th with a juggling boundary to remove Cox off Shaw's bowling, although replays suggested his foot was on the rope when he initially threw the ball in the air.
Josh Shaw in action for Gloucestershire [Alex Pantling/Getty Images]
Sam Billings reinjected some belief with two sixes off Phillips at the start of the 14th but he was out for 26 when he hit Amir down Taylor's throat.
Blake and Leaning just about kept the hosts in contention. The 17th over went for 15 and the 18th went for 13, but Amir, who signed for the Spitfires in 2021 but never actually played, had Blake caught on the boundary in the 19th.
Grant Stewart would have been out to the next ball after Miles Hammond took a deflected catch, but the umpire signalled a no ball, leaving Higgins to defend 19 off the final over. The first two balls, to Leaning, were dots, the third went for four and the fourth for two.
Leaning hit the fifth for six, meaning a maximum off the final ball would have given Kent a tie, but he could only manage a single.
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