Sam's cover of Demi Lovato's Skyscraper topped the Christmas Charts this evening to score the Festive Number One spot.
Despite it being close to 100,000 copies ahead of its nearest rival, the track is the second lowest selling winner's song in the show's decade long history, and the lowest selling Christmas Number One since 2001.
Sam sold 148,853 copies of her track in the last seven days according to Official Chart data. Only Steve Brookstein's Against All odds sold fewer copies way back in 2004, with a first week total of 127,372.
But a look at the figures from the other winners suggest that the sales of their first singles don't really give any true indicator of future success.
Shayne Ward holds the title of fastest selling winner's single, shifting a whopping 742,180 copies of That's My Goal in its first week on sale.
Alexandra Burke and Leona Lewis also sold huge amounts to both reach number one in their years, selling 576,000 and 571,000 copies respectively.
Last year's champ James Arthur sold 490,000 copies of Impossible last year, topping Joe McElderry's 2009 title of 451,000 for The Climb.
Matt Cardle sold 439,000 copies of When We Collide, the last of the big hitters.
Leon Jackson's 2007 winner's single When You believe shifted 275,000 units but Little Mix, perhaps surprisingly, sold just 210,000 copies of Cannonball.
The girl group won the show in 2011 and have gone on to have a rather successful career compared to some of the other winners, with a second Top 10 album this year.