Opener Kyle Coetzer made a fine 90 and Cameron White contributed 65 as the Northamptonshire Steelbacks claimed an exciting Yorkshire Bank 40 victory over Kent Spitfires.
Kent made 188-7 in their 40 overs, Geraint Jones top-scoring with 46 not out, but the hosts got home with just two balls to spare, keeping their hopes of semi-final qualification alive.
The visitors opted to bat first but Rob Key went for a three-ball duck in the second over, hitting Steven Crook (3-36) to Matt Spriegel at deep square-leg.
West Indies international Brendan Nash made 34 before he was stumped by David Murphy off James Middlebrook and a Darren Stevens (10) edge then hit Murphy's right leg and flew to point, where White took the catch.
It was 108-5 when opener Sam Northeast's off-stump was knocked back by Crook but Jones made crucial runs at the end of the innings, adding 45 with Matt Coles (12 not out) in the final five overs.
Northants slipped to 32-2 when they replied, David Willey (2) holing out to deep square-leg and Mitchell Claydon trapping David Sales (7) lbw.
But Coetzer and White then put together a superb third-wicket partnership of 142 that put the hosts firmly on course for victory.
Cruising at 174-2, the hosts wobbled late, White hitting Coles to Key at backward point before Coetzer was caught behind off Stevens.
Claydon then hit Crook's middle stump but Northants only needed three to win off the same bowler in the final over and scurried through for leg-byes on three of the first four balls to triumph.
The result moves Northants above their opponents and up into second in Group A, with two games left for both of these sides.