One-Day Cup: Warwickshire's Ed Barnard stars in resounding Bears win on return to Worcester

Ed Barnard's unbeaten 65 propelled Warwickshire to victory inside 17 overs

Former Worcestershire all-rounder Ed Barnard starred with bat and ball as Warwickshire demolished his former team by nine wickets at New Road.

Barnard, who moved to Edgbaston last year, was instrumental in a resounding win that maintained the Bears' 100 per cent record in Group B.

Northamptonshire moved up to second place after Prithvi Shaw's unbeaten hundred clinched victory at Durham.

In Group A, Leicestershire defeated Hampshire to leapfrog them at the top.

Warwickshire were on top from the start at New Road as Barnard (3-14), bowling in tandem with Oliver Hannon-Dalby, wrecked the Worcestershire top order, reducing them to 25-5 inside 10 overs.

Matthew Waite led a mini-recovery with 44, but Hannon-Dalby (5-31) returned to take his wicket and flatten the Pears for just 108 in 30.2 overs.

Barnard then set about the home side's bowling, smashing an unbeaten 65 from 44 balls to wrap up Warwickshire's fourth straight victory.

He shared a century partnership with Rob Yates (34) before hitting the winning boundary off new home signing Logan van Beek in the 17th over.

At Chester-le-Street, Northamptonshire opener Shaw followed up his majestic 244 against Somerset with an unbeaten century to steer the visitors to their third successive win as they triumphed by six wickets against Durham.

Luke Procter took career-best List A figures of 4-34 to dismiss the home side for 198 before India international Shaw took centre stage with 125 not out from 76 balls.

Shaw's innings included 15 fours and seven sixes - the last three of his boundaries coming in as many deliveries from George Drissell to steer Northants home with 24.2 overs unused.

Gloucestershire's James Bracey starred with an undefeated 224 against Somerset

Records were broken at Bristol, where James Bracey smashed the first double century of his career in any format to set up Gloucestershire's triumph against neighbours Somerset and lift them to third in the table.

Bracey batted throughout the 50 overs, hitting 224 not out from 151 balls - the highest score by any Gloucestershire player in limited-overs cricket - as his side amassed the tournament's highest total so far, 454-3.

That proved to be well beyond Somerset's reach and they were bowled out for 256 in reply, with Paul van Meekeren and Josh Shaw collecting three wickets apiece.

Half-centuries by Eddie Byrom and Colin Ingram for Glamorgan strengthened their prospects of reaching the knockout stage with a four-wicket win over struggling Sussex at Hove.

Zain ul Hassan took a career-best 4-25 to help restrict the home side to 276-9, then Byrom (69) and Ingram (73) laid the foundations in Glamorgan's reply.

Sam Northeast (40 not out) and ul Hassan (26 not out) got them over the line with 21 balls to spare.

Leicestershire's Colin Ackermann (R) shared a seventh-wicket stand of 74 with Tom Scriven to inflict Hampshire's first defeat of the tournament

Colin Ackermann and Tom Scriven shared a crucial unbroken partnership of 74 to steer Leicestershire to a four-wicket victory against Hampshire as they displaced their opponents at the Group A summit.

The Foxes kept Hampshire down to 296 all out at the Ageas Bowl, with teenage left-armer Josh Hull taking 4-57 despite sizeable contributions from Fletcha Middleton (78) and Tom Prest (65).

Sol Budinger (58) and Lewis Hill (63) manoeuvred Leicestershire into a good position in reply before they lost a clutch of wickets, but Ackermann - who hit an undefeated century against Lancashire on Friday - kept a cool head for his 93 not out.

Louis Kimber struck a valuable 33 from 25 balls before Scriven (26 not out) joined Ackermann, who pulled Eddie Jack for successive fours to complete the job with 16 deliveries unused.

Surrey spinner Dan Moriarty produced a remarkable final over, successfully defending six runs to ensure their first win of the tournament as Nottinghamshire lost out in a tense finish at Nettleworth.

In a rain-reduced match, Notts were asked to chase a DLS target of 241 from 40 overs after the visitors posted 244-7, largely thanks to a partnership of 121 between Ben Foakes (68) and Cameron Steel (67).

But despite Lyndon James' 71 and a 45-ball knock of 62 from Matthew Montgomery, they fell short on 237 all out as Moriarty dismissed Brett Hutton and Tom Loten in the last over, while Calvin Harrison was run out.

Yorkshire off-spinner Dom Bess took 5-37 in his side's win over Essex

Dom Bess registered his first five-wicket haul in white-ball cricket as Yorkshire capitalised on an Essex collapse at Chelmsford to gain their first success of the tournament.

The home side seemed well-placed at 175-3 after Michael Pepper's brisk knock of 63, but off-spinner Bess (5-37) and Matt Revis (4-54) ensured that they folded to 221 all out as the last seven wickets went down for 46.

Fin Bean and Harry Duke built a platform for Yorkshire, putting on 80 for the opening wicket before skipper Shan Masood (54) and James Wharton (54 not out) guided them to their target with 25 balls to spare.

Kent skipper Jack Leaning top-scored with 68 before taking two wickets to help his side record their second win in as many games, overcoming Middlesex by a comfortable 133 runs at Beckenham.

Leaning's effort followed an opening stand of 109 between Daniel Bell-Drummond (58) and Ben Compton (60) as Kent were bowled out for 288 with Middlesex's Ryan Higgins taking 4-33, but the visitors could only muster 155 all out in response.

Tuesday fixtures (11:00 BST start):

Lancashire v Hampshire

Leicestershire v Essex

Middlesex v Nottinghamshire

Yorkshire v Surrey

Warwickshire v Derbyshire

Wednesday fixtures (11:00 BST start):

Glamorgan v Gloucestershire

Northamptonshire v Worcestershire