UK retailer JD Sports says it expects full-year profit to be at the top end of its guidance after booking a strong sales performance over the Christmas trading period.

Like-for-like sales for its continuing businesses grew 12% during the five weeks to 3 January, with year-to-date like-for-like sales also up 12%.

The retailer said it is "confident" that its pre-tax profit for the full year will exceed the top end of market expectations, which range up to GBP90m.

"I am delighted to be able to report that the great momentum I reported in the sports fascias in all our territories earlier in the financial year has been maintained during the key Christmas period, particularly when measured against strong comparatives in prior years," said executive chairman Peter Cowgill.

"This result is testimony to the strength of the JD brand and its commitment to providing its customers with unrivalled choice, quality and excitement as the leading retailer of sports fashion."

Conlumino analyst Greg Bromley said the business is making "solid progress", adding: "These results confirm JD as being a Christmas winner of 2014."

He noted that although JD didn't provide an update on the performance of its other businesses that have previously been more troublesome - outdoor and fashion - it is now clear the group's disposal of Bank Fashion "came at the right time".

Bromley added: "While there are set to be challenges ahead, its prospects look extremely positive."