US freeskier Ferreira completes Olympic set with halfpipe gold
Ferreira, who aready had a silver and bronze in his collection, posted a winning score of 93.75 after a sublime effort on his third and final run of the competition under the lights in Livigno.
He dislodged Henry Sildaru from top spot but the Estonian's silver was still his country's first medal of the Milan-Cortina Games.
Canada's Brendan Mackay took bronze with a best score of 91.00.
"I'm finally in the history books, at least in my eyes," said Ferreira. "I would still be the same person with or without the medal...