Worcestershire 184 for 8 (Hose 63, Kashif 41) beat Leicestershire 168 (Cox 55, Kimber 53, Waite 5-21) by 16 runs
Worcestershire Rapids ended a run of seven successive defeats in the Vitality Blast and dealt a blow to Leicestershire's hopes of reaching the knockout stages with a 16-run victory at New Road.
Worcestershire achieved their highest score of the season thanks chiefly to Adam Hose's 63 off just 39 balls, beating last weekend's previous best of 181for four versus Lancashire Lightning at Emirates Old Trafford.
The Leicestershire spinners, Lewis Goldworthy and Rehan Ahmed, both bowled excellent spells which gave them combined figures of 8-0-45-3 before Hose's late onslaught.
But their powerful batting top order line-up was blown away by Tom Taylor and youngster Harry Darley as they were reduced to 28 for 5.
Louis Kimber revived Leicestershire's hopes with their fastest-ever T20 fifty off 21 balls including five sixes in a two-over spell and he and Ben Cox added 85 in eight overs.
But his dismissal for 53 ended their hopes of a remarkable win against the odds despite Ben going onto complete a fine 50 off 35 balls. Matthew Waite cleaned up the innings with a stream of late wickets including Cox in the final over for 55 to give him a career-best Blast return of 5 for 21.
The injury-hit Rapids have lost several games by tight margins but this was a convincing performance whereas Leicestershire have now gone four games without a win courtesy of two defeats, a tie and a wash-out.
Leicestershire received a treble boost with captain Peter Handscomb (shoulder), Rehan (concussion) and leading wicket-taker Scott Currie (Injury niggle) all returning to the side.
Hanscomb won the toss and put the Rapids into bat and Jimmy Neesham made the first breakthrough when Brett D'Oliveira sliced his shot into the hands of third man. Kashif Ali got into his stride with four and a massive six over backward square leg off successive balls from Josh Hull.
Josh Cobb inside edged Mike for four but was then caught down the leg side by former Worcestershire keeper Cox off the same bowler. The Rapids reached 61 for 2 in the powerplay but then Gareth Roderick made room to hit Rehan through the off side and was bowled.
Kashif, having hit Goldsworthy for a straight six, was given out lbw next ball aiming a blow to the legside. His 41 came off 25 balls with two sixes and three fours. Ethan Brookes also perished aiming to hit Goldsworthy to leg and was bowled but Hose looked in good form and kept the scoreboard moving at a decent rate for the Rapids.
Ed Pollock fell to a good catch over his shoulder at long off by Kimber off Currie who next ball trapped Waite lbw as Worcestershire lost momentum. But Hose ensured a sizeable total with a series of big hits as he completed a 33-ball half-century before on 63 he was caught by Cox attempting to scoop Neesham.
When Leicestershire replied Rishi Patel, the competition's leading scorer with 400 runs, was bowled for a duck driving at Taylor. There was joy then for Darley with his first Blast wicket as Rehan sliced the ball to Brookes at wide third. Darley then bowled a wide but his second legitimate ball accounted for Handscomb who clipped straight to Pollock atmid wicket to leave the Foxes 9 for 3.
There was no let-up for the visitors and Taylor struck again as Sol Budinger went for a big hit and was caught behind and Waite then disposed of Neesham in the same manner. Then came the remarkable hitting from Kimber to revive the Foxes; chances before he holed out to Cobb in the covers off Brookes.
Two wickets in two balls from Waite ensured there would be no late heroics from Leicestershire as he got rid of Mike and Goldsworthy. He struck twice more in the final over in sending back Cox and Currie to complete his five-for.