Spar’s Shop & Win campaign attracted nearly 25,000 customers this year, with 300 more people a week playing the competition's games than in 2016.
The campaign ran alongside Spar’s 60th anniversary deals and gave customers the chance to win £60,000-worth of prizes by playing an online scratch card game and entering a selfie competition on Facebook.
It ran for nine weeks from June 15 to August 17.
This year’s campaign also created a higher basket spend of £9.67, compared to £8.33 last year.
The top cash prize of £10,000 was won by a Spar shopper in Droylsden, Manchester.
Laura McNally, Spar marketing controller, said: “We are really proud of the success of the 2017 Shop & Win campaign, which is down to both our new initiatives, and the fantastic support and engagement we’ve had with the activity from our retailers.”