Alex Hales top-scored for Nottinghamshire Outlaws as they strolled to a convincing six-wicket win over Northamptonshire Steelbacks at Trent Bridge.
The opener smashed 75 off 71 deliveries as the home side stretched their lead at the top of the YB40 Group A table to four points with only three matches left to be played.
Northants posted a total of 205-9 after winning the toss and electing to bat first, with Alex Wakeley top-scoring with 59 from 52 balls.
But the Steelbacks struggled to find any consistency in their innings as they lost wickets at regular intervals.
Six other batsmen reached double figures without making it to 30, David Willey and Cameron White falling for 29 apiece.
Opener Willey smashed two sixes inside the first seven overs before falling to Ajmal Shahzad (3-49), while Cameron White helped Wakely put on 59 for the fourth wicket before hitting one of Steven Mullaney's off-cutters to Samit Patel in the covers.
The batting power-play did not help out the visitors, with Shahzad dismissing Steven Crook and Matt Spriegel in a double-wicket maiden before Wakely lofted Jake Ball (3-33) to Mullaney as three wickets fell for just six runs in 10 deliveries.
Nottinghamshire's response began in robust fashion, with Hales and Michael Lumb (36) putting 64 on the board before the latter was bowled by Lee Daggett.
JamesTaylor, who averaged 114 in the competition this season, was run out for five before the home side rallied.
Patel made 37 in a useful stand of 81 with Hales before being caught by Steven Crook off the bowling of James Middlebrook to leave the Outlaws on 158-3.
Hales missed out on his century as he hit Kyle Coetzer's first ball of the summer straight to Wakeley at extra cover.
But David Hussey (23no) and Riki Wessels (17no) saw them home with 44 deliveries to spare.