But the best race of an action-packed night came in the open class. The failure of the Alessi brothers to compete left the door open for Faccotti and he worked his way through the pack after crashing.
The pace-setters continually swapped positions with Britain's Neville Bradshaw, who was runner-up in the championship before the race. Bradshaw amazed the crowd by walking away unscathed after a horrendous crash when he landed from a 60-foot jump.
Meanwhile, Welsh rocker Stuart Cable and the lads from Dirty Sanchez were among those riding mini-bikes for Charity on the spectacular man-made dirt track.
Former Wales rugby stars Neil Jenkins, Ieuan Evans, Paul Thorburn, Nigel Walker and Rupert Moon also took part in a series of charity races. In the end, it was race sponsor Pink Panther who won both the team and individual race prizes, collecting £700 for the Toby Lloyd Cockbain Foundation.
"The Supercross event always creates a special atmosphere in the Millennium Stadium and this weekend was no exception," said Millennium Stadium chief executive Paul Sergeant.
"The event grows in size and stature year-on-year and we look forward to our friends from Supercross returning to this magnificent venue time and time again in the future."