Durham romped to an eight-wicket win over champions Worcestershire in their Pro 40 clash at New Road on Sunday.
Holders Durham chased a target of 189 with six balls to spare for a one-wicket win over Nottinghamshire.
Durham's decision not to enforce the follow-on reaped dividends as they completed victory inside three days.
Durham have re-signed Shivnarine Chanderpaul and Michael di Venuto, who will not count as an overseas player.
Ian Ward previews Saturday's Friends Provident Trophy final between Durham Dynamos and Hampshire Hawks.
Durham raced to victory on the final afternoon against Warwickshire.
Bumble hails captain Kevin, looks at the impact of sweets on swing and reveals his Olympics highlights.
Chris Gayle, winner in 2006, is making waves again in this year's Sky Sports International Sixes League.
Marcus Trescothick hit six sixes at Taunton to go fourth in the Sky Sports Domestic Sixes League.