In a mere 10 hours time that number has increased to $10 billion.
Singles Day has been a fixture in China since Alibaba turned the "holiday" - meant to deride single people - into a shopping extravaganza by offering deep discounts on a range of products from electronics to travel packages.
It was created by Alibaba, a Chinese e-commerce giant, which this year has racked up sales of an eye-watering $25 billion last year and is expecting to clear $35 billion this year.
Alibaba is a corporate colossus: "In total, Alibaba saw 1.48 billion transactions worldwide past year, with a peak of 325,000 orders per second".
This year's Singles' Day continued the trend of lavish showcases to drum up interest. The Jack Ma-led e-tailer registered sales worth 69 billion yuan, or $9.92 billion, within one hour of the November sale event.
This Sunday in China it is "Singles Day".
This year, Alibaba is hoping to up the ante, by combining online and in-person retail opportunities ー a vision Alibaba calls "New Retail".
Brazilian GP: Mercedes fear Ferrari are favourites
Ferrari's Sebastian Vettel was third fastest, a mere 0.073 adrift of the Mercedes duo with the two Red Bulls completing the top five.
Early sales figures are an indication that China's ongoing trade war with the United States has done little to dent domestic consumption so far.
Chinese e-commerce platforms have come under fire in the past for peddling low-quality and counterfeit items.
It's expected to be the company's final November sale with founder and Chairman Jack Ma at the helm, with Zhang set to take over as chairman next year, the company said in September. "It's commerce but it's also entertainment, this is not necessarily people who are buying stuff that they need in life, it's a big festival, it's fun and there are good discounts".
Alibaba's chief executive Daniel Zhang said Singles Day showed how strong Chinese consumer power was.
This year, stars including Mariah Carey and performers from the Cirque du Soleil entertained in a four-hour gala televised on Alibaba's Youku video platform and through other media partners.
Gross merchandise value, a figure that shows sales across Chinese e-commerce behemoth's Alibaba's various shopping platforms, exceeded the US$25.3b record set on Singles' Day a year ago - up around 27 per cent.
"Chinese consumers, especially the millennials, are incredibly confident about their futures, and that tends to enable spending, when you feel like you're going to make more next year than this year", said Jeffrey Towson, a professor of investment at Peking University Guanghua School of Management.