Danica Patrick will be back in GoDaddy green for the final race of her Nascar career. File photo: Chris Keane / AP

Indianapolis, Indiana - Danica Patrick says her plans to run the Indianapolis 500 in what is scheduled to be the final race of her career are set, according to a report on IndyCar's website on Monday.

While Patrick, who said in November 2017 she would retire after the 27 May race, said her entry was confirmed, an announcement of which team she would race for was not imminent.

"No, I just needed to make sure the deal was done," said Patrick, the only woman to win an IndyCar race. "The rest I don't really care about."

In 2005, Patrick started and finished fourth as an Indy 500 rookie - at the time a record for a woman driver. She finished third in 2009 but has not competed in the iconic race since 2011.

One of the most marketable athletes in North America, Patrick has seen her popularity wane in recent years, unable to produce the type of results many had expected when she made her much publicised jump from IndyCar to Nascar in 2012.

She will compete in Sunday's Daytona 500 where, after failing to get a seat with a top-tier team in her penultimate race, she'll drive the No.7 GoDaddy Chevrolet for Premium Motorsports.

Danica Patrick, all 1.57 metres and 45kg of her, remains the only woman ever to have won an IndyCar race. File photo: Shuji Kajiyama / AP

With a deal now in place for the Indianapolis 500, Patrick made it clear which of her final two races, which is being dubbed the "Danica Double" she would prefer to win.

"Yeah, it would be Indy," Patrick told IndyCar. "There's nothing against Daytona, but just from being a young little girl, I had always wanted to win the Indy 500. It's not to say that Daytona is not an enormous deal.

"But I have to go with what feels like the most important in my heart and I came from open-wheel racing, I wanted to win the Indy 500 from being a go-kart driver when I was a kid and came close a few times.

"It's kind of what started it all for me, so there's just a lot more history there."