Serena Williams | $210 million

The world of tennis has always been represented by names, such as Serena Williams. With her skills and talent, her strength-packed smashes had always left the people watching her in court awestricken. With a career that spans almost two and a half decades, Williams had dominated the top sport in 2002 and continued to take her place for five more seasons. Her career has been stellar: 39 Grand Slam titles in total. Inside the court, she is known for her explosive swings and her high-energy plays. She is also known for getting back up after a defeat. Together with her sister, Venus, she has revolutionized the tennis scene with their athleticism.

Aside from being the greatest tennis player the world has ever seen, Williams also makes good calls in cryptocurrency investments. In 2014, she started Serena Ventures, which aims to fund startups. Furthermore, the said company invested in Coinbase, a type of Cryptocurrency.