Austrian winner Elisabeth Goergl beat Vonn's time by 0.84 seconds.
"I think maybe it was the wrong decision to even try to race today, but I'm too stubborn," Vonn said, according to the Associated Press. "I couldn't give up."
The Olympic gold medalist reportedly lost time at each check point and was "uncharacteristically wild."
"It's very frustrating, because it's not pain. I can't just fight my way down and fight my way through the pain -- I have no fight, I can't think," she said. "It's awful, it's awful."