SYDNEY, AUSTRALIA – SEPTEMBER 16: A competitor dressed as Spiderman runs over the Sydney Harbour Bridge during the Sydney Running Festival on September 16, 2012 in Sydney, Australia. (Photo by Ryan Pierse/Getty Images)

SYDNEY, AUSTRALIA – SEPTEMBER 16: Competitors run over the Sydney Harbour Bridge during the Sydney Running Festival on September 16, 2012 in Sydney, Australia. (Photo by Ryan Pierse/Getty Images)

SYDNEY, AUSTRALIA – SEPTEMBER 22: Competitors run past the Sydney Opera House during the 2013 Sydney Running Festival on September 22, 2013 in Sydney, Australia. (Photo by Cameron Spencer/Getty Images)