Durham Under-17s secured an opening win in their ECB County Competitions Cup Group 1A campaign, defeating Derbyshire by one wicket at Darlington.
Derbyshire reached 206 all out in 50 overs, led by Ben Wright (52), Ali Hassan (67), Ben Hall (25) and James Thompson (27).
Nathan Hall plundered 4-43, backed by two wickets apiece from Rory Atkinson and Max Williamson. Matthew Oswell also struck.
Durham had runs throughout their reply as they won with a ball to spare, led by 40 apiece from Sol Bell and Hall, who hit six fours and a six.
Adam Khan hit 21, with Jack McCarthy adding 20, Marcus Brown 28 and Jack Rowley (26). Visiting bowler Josh Lacey took 2-51.