A stunning unbeaten century from opener Josh Cobb guided Leicestershire Foxes to a six-wicket win over the Unicorns in Yorkshire Bank 40 Group C.
Cobb's 128, off just 108 balls, helped steer the Foxes past the Unicorns' 253 with an over to spare as he and Shiv Thakor put on an unbeaten 136.
It was the 22-year-old's second ton in as many days - and third in succession - and contained four sixes and nine fours.
Tom Lancefield's 58 had helped the home side set a potentially testing target at Wormsley but Cobb and Thakor steadied the ship after Leicestershire slipped to 120 for four.
Cobb and Niall O'Brien put on 66 for the first wicket before the Irishman came unstuck off the bowling of Aneurin Norman with Vishal Tripathi taking the catch.
Greg Smith scored 14 before he fell lbw to Luke Beaven and Joe Burns followed for just four as Keith Parsons took a catch off Norman.
When Matthew Boyce was bowled by Michael O'Shea, the Unicorns may have been sensing their first win of the season.
But Thakor, who made 64, provided able support for Cobb and sealed the win with a four off Devon Endersby.
Leicestershire put the Unicorns in and the home team were going at a good rate when the first wicket fell in the eighth over.
Lewis Hill had scored 26 of the Unicorns' 32 runs at that point but went as Burns took a catch off Rob Taylor.
Lancefield and O'Shea then put on 82 for the second wicket going at a brisk six an over but the latter was run out in the 21st over.
Lancefield followed, as Taylor had him lbw, but Garry Park and Tripathi then put on 71 for the fourth wicket in just nine overs before Tripathi was stumped for 43 off Thakor.
Park brought up his half-century off the final ball of the 35th over but Parsons fell for just three in the 36th to become Taylor's third victim of the day.
Park followed just six balls later, having notched 54, as Boyce took a catch off Anthony Ireland.
The 38th over saw the Unicorns add nine runs but just three of them came off the bat as Robbie Williams sent down five wides and a leg-bye.
Norman was next to fall as Taylor took a catch off Ireland before Endersby was run out off the final ball of the innings.