Barty won his first and so far only Grand Slam tournament in Paris during the summer. Immediately after the French Open, she also won the grass tournament in Birmingham but has since won no tournament and went out in the eighth in both Wimbledon and the US Open. After all, she is happy with the tennis year so far.

"It's been a good Grand Slam season and I've reached the second week of all tournaments, which I'm proud of," the Australian told The Guardian.

Tennis has for several years completely equaled prize money in the Grand Slam tournaments (despite the fact that the ladies only play in the best of three sets while the men have the best of five). For example, Bianca Andreescu raised $ 37 million for her title in the US Open.

The winner in Shenzen receives at least SEK 40 million

That sum is topped up for the WTA Final in Shenzen, China, where a winner at a win in all matches brings home $ 46 million. At the very least, the winner gets SEK 40 million (in the event of a loss in two group games).

This can be compared to last year's men's winner of the ATP finals of SEK 26 million. If you go outside the tennis, you can by comparison mention that the US world champion in women's soccer was allowed to share SEK 38 million this summer. In Swedish women's hockey and women's football, bitter battles are ongoing to get to decent conditions, just to make everyday life go around.

"As tennis professionals, we are really fortunate to be able to live on the sport we love and to be so richly rewarded is a privilege," says Barty, who at the age of 23 has already earned SEK 108 million, only in prize money. With the sponsorship part it is usually about at least the double.