England all-rounder Ben Stokes admitted it had been "tense the whole way through" after helping Durham lift the One-Day Cup at Lord's.
The 23-year-old took two wickets and hit an unbeaten 38 as they clinched a three-wicket win over Warwickshire.
"I love coming back to play for Durham. I am absolutely thrilled that we've won another title," said Stokes.
"I just tried to stay as calm as possible and tried to make sure I was there at the end."
Stokes, who took the wickets of Laurie Evans and Rikki Clarke as Warwickshire were bowled out for only 165, also saw two catches go down off his bowling.
But Durham did not find batting any easier in the late September conditions and Stokes admitted that the regular loss of wickets in their innings forced him to abandon his normal aggressive approach as the pressure built.
"It was tense the whole way through," he added. "Every time we seemed to get back on top they picked up a wicket.
"There was no scoreboard pressure, so it was just about taking what you got and any boundary balls you felt you could hit had to be taken advantage of."
Gareth Breese, playing his final match for Durham after 11 seasons with the county, hit the winning runs after an unbroken 36-run partnership with Stokes.
"It was a fantastic team performance and that's what took us home," Breese told BBC Radio Newcastle.
"Nobody really stood out, but everybody contributed, and that's fantastic from our dressing room.
"Credit to Warwickshire. They came out and gave it a fantastic effort. Jeetan Patel stood out for me. He was the difference in keeping them in the game. If we could have fast-forwarded his 10 overs, there would have been a little less stress."
Eight of Durham's starting line-up were born in the county, New Zealand-born Stokes, Jamaican Breese and Scotsman Calum MacLeod being the only 'outsiders'.
And Stokes admits that the county's success, having also won the County Championship three times since 2008, has a lot to do with the close-knit nature of the team.
"We have been around each other for a number of years now," he said. "We know how everyone plays cricket and what their personalities are like. That goes a long way to how successful we have been."
Durham will start their defence of the trophy next summer in a group also including Yorkshire, Derbyshire, Gloucestershire, Leicestershire, Northants, Somerset, Surrey and Worcestershire.
Warwickshire's group stage opponents will be Kent, Hampshire, Sussex, Essex, Lancashire, Middlesex, Nottinghamshire and Glamorgan.