Well let me try this again.......clues are 1) Australia is 2 episodes, 2) 12 leg race, 3) Sao Paulo is not a leg.
Leg 1a, Episode 1 Sydney
Leg 1b, Episode 2 Broken Hill
Leg 3, Episode 3 Yokohama/Toyko
Leg 4, Episode 4 Ligiang, China
Leg 5, Episode 5 Kunming, China
Leg 6, Episode 6 Kolkata, India
Leg 7, Episode 7 Varanasi/Benares, India
Leg 8, Episode 8 Vienna, Austria
Leg 9, Episode 9 Austria/Lichtenstein/Switzerland
Leg 10, Episode 10 Somewhere in the Alps
Leg 11, Episode 11 Rio De Janeiro, Brasil
Leg 12, Episode 12 Miami, USA