Iga Natalia Świątek is a Polish professional tennis player. She is currently ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA), having held the position for a total of 103 weeks. Świątek is a four-time major singles champion, having won the French Open in 2020, 2022, and 2023 and the US Open in 2022. She is the first player representing Poland to win a major singles title. She has won a total of 20 singles titles, including the 2023 WTA Finals and nine WTA 1000 titles.

The WTA 1000 tournaments are a category of tennis tournaments on the WTA Tour, governed by the Women's Tennis Association. The old WTA Premier Mandatory and 5 tournaments merged into a single highest tier implemented in the 2021 schedule reorganization. Until 2024, only four of the nine WTA 1000 tournaments were mandatory, when the category expanded to ten mandatory tournaments.