Gender pay gap in sports looks into the persistence of unequal pay in sports, particularly for female athletes who do not receive equal revenue compared to their counterparts, which differs depending on the sport. According to the research conducted by BBC, "a total of 83% of sports now reward men and women equally". However, it does not mean that the wage gap in sports has narrowed or disappeared. In 2018, Forbes released the list of the top 100 highest-paid athletes, and they are all male athletes. A similar situation also occurred in 2017, where there was only one female athlete – tennis player Serena Williams — who joined the list and ranked No.56. Billie Jean King brought awareness to the issue of unequal pay in the early 1970s, when she was awarded $2,900 less than her male counterpa