Danica The world’s 4th highest-paid female athlete

In part:
"Our No. 4-ranked female athlete is racing’s Danica Patrick, who pulled in $12 million. Patrick is the most popular driver in IndyCar. She has a lucrative deal with her team, Andretti Autosport, that allows her to share team revenues, a rarity in racing.

Patrick’s profile jumped this year when she started racing in NASCAR’s Nationwide Series for JR Motorsports, which is co-owned by Dale Earnhardt Jr. Patrick has struggled with the heavier stock cars with an average finish of 30.5 in her first six starts. Yet her sponsors – like GoDaddy.com, Peak Antifreeze and Tissot – have reaped the benefits of that added attention." Yahoo! Sports