US advertisers invested almost $100 million in television adverts during this summer's Women’s Football World Cup.

The final figure was more than double the original estimate of $43 million. The initial projections also ignored ad revenue from Spanish language networks such as Telemundo which brought in 11 per cent of the final $96m total.

A spokesperson for ad tracker Kantar said the discrepancy “could be due to a number of potential factors, including high demand for last-minute ad buys".

The US women’s team attracted huge media attention and massive publicity on their way to a fourth World Cup title. This was in no small way boosted by the team's performances on the pitch and their high-profile captain Megan Rapinoe, who made headlines after a video surfaced of her saying she wouldn’t visit the White House if the team won.

The team also went on to sue the US Soccer Federation, claiming the players were earning less money than the men’s team, despite the women's team being more successful.

Fox Sports holds the English-language rights to FIFA tournaments in the US and research from analytics company SQAD reported Fox took more than $500,000 for each 30-second ad slot during the USA's final win against the Netherlands.