HAMPSHIRE captain James Vince broke Gordon Greenidge’s record one-day score for the county before his side imploded against Glamorgan at The Ageas Bowl.

Vince smashed 178 from only 138 balls, two days after Rilee Rossouw’s 156 against Somerset, as his side amassed 332-6 from their 49 overs.

He then took a stunning one-handed catch to dismiss Will Bragg before watching aghast as Glamorgan over hauled Hampshire’s highest total of the season to win by three wickets with a ball to spare.

The Welsh county needed 90 from the last 44 balls, with five wickets left, when Lewis McManus became the second Hampshire wicketkeeper to stump three batsmen in a List A innings (after Derek Kenway at Derby in 2000).

But Colin Ingram’s 115 (78 balls) kept Glamorgan in the game and McManus's third stumping (all off Mason Crane) was followed by a sensational 59 not out (27 balls) by Chris Cooke.

The former Bournemouth CC star hit Reece Topley for 18 off the first four balls of the 46th over.

And when Ingram was caught at backward point by Sean Ervine off Ian Holland in the next over, Cooke hit the Australian for successive sixes.

Glamorgan needed nine off the last over and the game was won when Cooke hit the penultimate ball, from Topley, for his fourth six over the mid-wicket boundary.

It completed a remarkable afternoon which featured 666 runs - the highest aggregate in a limited-overs match at The Ageas Bowl - despite the loss of two overs to rain.

Earlier, Vince’s record knock included 18 fours and five sixes and took him past Greenidge’s 177, also against Glamorgan, at Northlands Road in 1975.

Vince shared a stand of 221 with Liam Dawson (74), a new record for Hampshire’s fourth wicket, surpassing the 219 between Greenidge and Chris Smith against Surrey at Northlands Road in 1987.

But a few hours later, he was reflecting on a defeat that leaves Hampshire’s chances of qualifying for the Royal London One-Day Cup quarter-finals in the balance.

“It hurts posting a total like that and not defending it,” he said.

“Ingram and Cooke struck it pretty well and it went over the ropes.

“Low full tosses or short of the block hole and it disappeared.

“We didn’t execute today but they did strike very well.

“It would have been nice to be on the right side of the result, the lads are hurting."

Vince’s fifth List A hundred for Hampshire surpassed his first (131 against Scotland in 2011) as his career-best.

He is now the tournament’s second-highest run scorer with 443 - after Ingram (450).

“I’m going all right,” he added. “In 50-overs you have more time than you think.

"Daws played a key role in that partnership and then we were able to express ourselves.”

Cooke said: “The boundaries were fairly small and it was a good wicket."