Patrick crashed on Lap 68 of the race, disabling her vehicle but leaving her unhurt.
She may now turn to her acting and voice-over career, which has seen numerous appearances as herself on talk shows, reality series and hosting gigs.
"I got a good move on Ryan", said Castroneves, who was fifth at the time.
"I'm not really sure what happened", she said.
"I've had a lot of good fortune here and did still have some this month".
"I'm going to sit up in the "North 40" (the north short chute) and drink beer like the rest of the fans that come out there", TJ said.
"American Idol" victor Maddie Poppe reveals she's dating finalist Caleb Lee Hutchinson
"I'm just wondering, is there a special significance to the song, Caleb, when you sing it with Maddie? ". Maddie Poppe! "So, the two of them are a couple, and they're competing for the title".
After last season, Penske moved Castroneves from his full-time IndyCar ride to the Penske sports-car Acura team starting this season with the promise of fielding a auto for the Indianapolis 500.
Patrick was making the final start of her racing career, completing the "Danica Double" at the Indy 500.
"I was definitely nervous", she said. Patrick had been running near the middle of the pack in the Indianapolis 500 when she lost control, slid hard into the outside wall, then caromed across the track and hit the inside barrier. I don't remember this.
The win topped a huge weekend for Australian motor racing after Daniel Riccardo won his seventh Formula One race at the Monaco Grand Prix. She struggled to run up front despite driving for a powerhouse Stewart-Haas Racing team much of her career, and she wound up with just seven top-10 finishes. I was wondering if I would ever win it. "I can't describe it".
Patrick added that it was not the ending she wanted for her career.
Patrick closed with one more joke directed at reporters. Maybe someday he'll race for me. ("Please Roger, can I come back", he pleaded with team owner Penske in his television interview.) Fellow Brazilian Tony Kanaan, another former victor who had the lead early in the afternoon, later lost control in turn two and also exited the race. He posted throughout the day about the race, and he even streamed the whole event from inside his auto.