Simon Brown took the Gold Award though for his 6 for 36 as Durham beat Northamptonshire by 64 runs in the Benson and Hedges Cup at Chester-le- Street.
Kim Barnett made an unbeaten 112 at Old Trafford to leave Lancashire struggling to qualify for the quarter-finals. Jason Gallian's half-century rescued the holders from 29 for 4, but Derbyshire eased past their 223 with six wickets to spare.
At Bristol Robert Cunliffe's 113 and a total of 280 was not enough to prevent a three-wicket defeat for Gloucestershire by Surrey. Alistair Brown (66 off 49 balls) Ben Hollioake (69) and Mark Butcher, batting at No 8 with a runner, set up victory with four balls to go.
Darren Maddy, with 101, won his second Gold Award in three days to steer Leicestershire to a 77-run victory over Nottinghamshire at Grace Road. South African Neil Johnson chipped in with 2 for 38 on his debut.
Somerset beat Glamorgan by 141 runs at Taunton. Mark Lathwell (77) and Richard Harden (68) helped them to 258 and Andy Caddick's three wickets sparked a Glamorgan collapse.
Darren Lehmann made nine on his Yorkshire debut and was one of Phil Newport's 4 for 37 that gave Worcestershire a 12-run win at Headingley. And Gladstone Small (5 for 23, four in five balls) won a first Gold Award as Warwickshire beat Minor Counties by 155 runs at Edgbaston.Reuse content