Tesco, Britain’s biggest supermarket group, rode out a “subdued” Christmas to lift UK sales by 0.1%, enough to beat its main rivals amid the toughest high street conditions in years. Chief Executive Dave Lewis said Tesco’s UK stores delivered the best operational performance of his five-year tenure. Tesco sold more food on Dec. 23 than on any other day in its 100-year-old history, Lewis said, with 890,000 customers served in a single peak hour of trading.
