Serena Williams first athlete on Forbes' Richest Self-Made Women list

With an estimated fortune of USD 225 million, Serena Williams made a Forbes list of World's Richest Self-Made Women.

Serena Williams became the first athlete to make it onto Forbes' annual list of World's Richest Self-Made Women.

The 23-time Grand Slam champion made the list behind big endorsements, including Nike , JPMorgan Chase and Gatorade , investing in startups — Williams has put money into 34 over the past five years — and her recently launched company,  Serena Ventures , which focuses on companies founded by women and minorities.

Read | Dominic Thiem 'forgets' Serena incident

Forbes released the list on Tuesday which also featured Oprah Winfrey (No. 10), Rihanna (37), Vera Wang (45) and Ellen DeGeneres (63), among many others.

Williams, 30, ranked 80th overall with an estimated fortune of US 225 million.

'Fun'

"It's fun to get in there. I don't gamble. I don't jump off buildings," she told  Forbes . "I'm the most non-taking-a-chance kind of a person, but I felt like seed [investing] was where we wanted to be."

Forbes noted Williams' USD 29 m total income over the past 12 months is the highest of her career. "I want to be a part of it," Williams said. "I want to be in the infrastructure. I want to be the brand, instead of just being the face."

Read | Serena refuses to explain wheelchair photo

Williams made it clear, however, she will continue playing tennis at the highest level. The American suffered a third-round loss at the French Open, leaving her one short of matching Margaret Court's all-time record of 24 Grand Slams.

"I am in no rush to get out of this sport," Williams said. "I want to create a brand that has longevity, kind of like my career. It's not fancy, it's not here, it's not out, it's not trendy, it's a staple, like my tennis game."