Sports Direct group profit jumped 19.4% to £199.8m in the nine weeks to September 29 as sales advanced 15.1% to £463.7m.
Sports retail sales surged 14.8% to £395.7m and gross profit increased 19.7% to £170.9m.
Sales from its premium lifestyle division, which includes fashion retailer USC, soared 74.9% to £32m and gross profit rocketed 82.9% to £13.9m.
Brands division sales advanced 12.9% to £36m and gross profit rose 9.5% to £15m.
Sports Direct chief executive Dave Forsey said: “As we highlighted this time last year, the London Olympics was followed by an excellent ‘back to school’ period. Therefore to continue to produce these numbers, especially within Sports retail, clearly demonstrates the strength of our business model.
“Since the end of September trading has remained strong and the board is therefore confident of reaching the full-year internal stretch underlying EBITDA target of £310m.”