Hampshire 250 for 1 (Carberry 150*, Adams 66*) beat Lancashire 244 for 6 (Prince 100) by 9 wickets
Michael Carberry continued his excellent form in the Yorkshire Bank 40 as holders Hampshire extended their lead at the top of Group B with a nine-wicket victory against Lancashire at the Ageas Bowl.
Carberry finished on his career-best one-day score of 150 not out as Hampshire chased down a target of 245 with six overs to spare.
The opening batsman, who hit 96 against Durham last Sunday, plundered 18 fours and five sixes in his 115-ball masterclass.
He dominated a first-wicket stand of 77 with James Vince, whose departure for 25 to Kyle Hogg in the 10th over was the only moment of joy for Lancashire's bowlers.
Carberry was joined by his skipper Jimmy Adams and the second-wicket duo guided Hampshire across the winning line without further loss. Adams' contribution to a 172-run partnership was 66 off 62 deliveries.
Ashwell Prince had earlier hit a century in Lancashire's total of 244-6. The South African scored 100 off 85 balls, including 11 fours and a six, at the top of the order after Lancashire had been asked to bat. He received good support from Karl Brown in a third-wicket stand of 112 before Wayne White and Gareth Cross finished the innings with a flourish.
The result is Hampshire's fourth victory from five matches in this season's competition, putting them four points clear of Essex in Group B, while Lancashire have won only one of their first four fixtures.