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Lancashire Lightning ended their Royal London One-Day Cup campaign with only a second Group A win, which came against Leicestershire at Emirates Old Trafford to deny the Foxes a quarter-final place.
The Lightning warmed up for Saturday's NatWest T20 Blast Finals Day with an eight-wicket victorywith 20 overs to spare in pursuit of just 185.
The visitors were left hoping that other results would go their way after starting the match knowing that a win would secure qualification, but Derbyshire Falcons beat Gloucestershire to take the last quarter-final spot.
Leicestershire, who elected to bat, were hurt by losing their last seven wickets for 59 runs in 90 balls to slip from 125 for three in the 29th over to 184 all out inside 44.
By contrast Tom Smith and Luis Reece shared 97 to notch Lancashire's best 50-over opening stand of the summer and the Lightning never looked back as Karl Brown finished just one short of a fifty of his own.
At the start of the day Kabir Ali led the way for Lancashire upon his return from just over three weeks out with a right-shoulder injury, taking 3-26 from nine overs with one wicket in his first five-over spell and two in his second.
That ends our home one-day season and good to end with a comprehensive win. We now look forward to Saturday's @NatWestT20Blast Finals Day!
— Lancashire CCC (@LancsCCC) August 21, 2014
Scholarship seamer Tom Bailey and experienced all-round duo Smith and Steven Croft all added two wickets apiece.
Only two Foxes players made it beyond 24. Opener Josh Cobb, also returning from a three-week injury lay-off, hit 58 off 77 balls and Dan Redfern added 43 off 52 from number five in the order.
The Foxes were a long way under par on a ground where 320-plus was scored by Yorkshire Vikings and Hampshire at the start of the competition.
Thanks in the main to Cobb, who pulled the only six of the innings over deep midwicket off Smith, they had built a decent platform at 91 for two ahead of the 20th over.
However, with the introduction of spin duo Croft and Stephen Parry, they lost three wickets in 16 overs for the addition of 59 runs, going 76 balls without a boundary between the 20th and 33rd overs.
Lancashire were able to start their innings seven overs before the interval and reached 33 without loss. Smith and Reece brought up their fifty partnership in nine overs, with Smith clubbing Charlie Shreck over long-on for six.
It's all over I'm afraid. A win for @DerbyshireCCC means that the Foxes go out of the #RLODC
— Leicestershire CCC (@leicsccc) August 21, 2014
He later hit James Sykes' left-arm spin over for cover for his second six on the way to 50 off 45 balls but perished caught at long-on to the same bowler.
Reece brought up his first half-century of the campaign in first-team cricket in the 22nd over by hammering Sykes for a straight four, but he fell in the next for 54 off 61 balls after he tried to slog-sweep Jigar Naik's off-spin and was caught at deep midwicket with 133 on the board.
Brown finished with 49 not out off 53 in an unbroken third-wicket stand of 52 inside eight overs with his captain Paul Horton.
Lancashire's victory helped lift them off the bottom of the table, consigning Hampshire to the wooden spoon.
After the defeat, Leicestershire coach Ben Smith said: "Unfortunately tonight, whether it was the pressure of the big game or the ability of the players, we fell short.
"The two guys that got themselves in and got themselves out are at fault really as the players who got out at the wrong time.
"Because we lost wickets at intervals, we were never really in a position to kick on. That's what really hurt us."