"I'm a flawed character," he said.
Did it feel wrong?
"No," Armstrong replied. "Scary."
"Did you feel bad about it?" Winfrey pressed him.
"No," he said. "Even scarier."
"Did you feel in any way that you were cheating?"
"No," Armstrong paused. "Scariest."
"I went and looked up the definition of cheat," he added a moment later. "And the definition is to gain an advantage on a rival or foe. I didn't view it that way. I viewed it as a level playing field."
Wearing a blue blazer and open-neck shirt, Armstrong was direct and matter-of-fact, neither pained nor defensive. He looked straight ahead. There were no tears and very few laughs.
He dodged few questions and refused to implicate anyone else, even as he said it was humanly impossible to win seven straight Tours without doping.
"I'm not comfortable talking about other people," Armstrong said. "I don't want to accuse anybody."
Whether his televised confession will help or hurt Armstrong's bruised reputation and his already-tenuous defense in at least two pending lawsuits, and possibly a third, remains to be seen. Either way, a story that seemed too good to be true — cancer survivor returns to win one of sport's most grueling events seven times in a row — was revealed to be just that.
"This story was so perfect for so long. It's this myth, this perfect story, and it wasn't true," he said.
Winfrey got right to the point when the interview began, asking for yes-or-no answers to five questions.
Did Armstrong take banned substances? "Yes."
Did that include the blood-booster EPO? "Yes."
Did he do blood doping and use transfusions? "Yes."
Did he use testosterone, cortisone and human growth hormone? "Yes."