Graeme White took four wickets as Northamptonshire saw off Gloucestershire by 41 runs to claim their first home win in the Friends Life t20 in almost three years.
After the weather saw the match reduced to 12 overs-a-side, Northamptonshire made 124-4 with Scotland captain Kyle Coetzer's 25-ball 39 the top score.
Gloucestershire collapsed to 83-9 in reply with Nottinghamshire loanee Graeme White taking 4-15 from three overs and Muhammad Azharullah 2-23.
This was the hosts' first victory in this competition at Wantage Road since they defeated Lancashire in July 2010 and it gets this year's campaign off to a flyer.
Several rain delays meant proceedings eventually began at 8:10pm after the Gladiators won the toss and put Northamptonshire in to bat.
Dan Christian then dismissed Richard Levi (2) in the second over when he chased the Australian's wide delivery and was taken by Gloucestershire wicketkeeper Gareth Roderick.
Coetzer departed when he chipped Benny Howell to Gloucestershire captain Michael Klinger at extra cover before the same bowler castled Cameron White after he had clubbed 28 off 20 balls.
Northamptonshire captain Alex Wakely bludgeoned 36 off only 19 deliveries before smashing David Payne to Ian Cockbain at long off with the last ball of the innings.
Chasing 125, Gloucestershire opener Hamish Marshall (2) went second ball when he launched David Willey to Cameron White at midwicket before Chris Dent (11) dragged Azharullah on to his stumps.
The visitors then lost two wickets in consecutive balls in the eighth over, bowled by Graeme White, when Christian (13) picked out Willey at long on.
Klinger was taken at long off by Matthew Spriegel after plundering 27 as the game slipped away from Gloucestershire.
Five wickets then tumbled for just three runs as Howell (10) was run out by Willey at long-on before Graeme White caught-and-bowled Alex Gidman (3) with the very next ball.
Graeme White then bowled James Fuller (2) before Azharullah repeated the dose to Cockbain and Roderick in the penultimate over to compound the visitors' misery.