Derbyshire fast bowler Tim Groenewald says his side's fine bowling and fielding was the key to the CB40 win over Worcestershire at New Road.
Groenewald was the star bowler, taking career best one-day figures of 4-22 in the six-wicket victory.
"I'm very happy with our performance," he told BBC Radio Derby.
"They lost wickets from the start, and at regular intervals and as a fielding side that allows you to settle in to your plans and get on top."
Groenewald's heroics helped restrict the home side to 171 all out from 38.1 overs. And the Falcons eased to victory largely thanks to a superb opening stand of 84 from Usman Khawaja (89 not out) and Chesney Hughes (42).
Groenewald added: "It's nice to contribute to a win and keep the winning ways going in the one-day game.
"It was always under control. Ches and Use got us off to a good start and that laid the foundation. Use showed his class today and saw us home.
"It's three out of the last four wins now which is a nice way to start the the one-day competition.
"They are all wins against good Division One County Championship sides, which says a lot for us."