Half Distance Triathlon Brasília Training Plan Get ready to race strong and confident at the Half Distance Triathlon Brasília! Set against the backdrop of Brazil’s vibrant capital, this race challenges you with a 1.9 km swim in the calm waters of Lake Paranoá, a fast 90 km bike ride along wide-open avenues, and a three-lap, shaded 21.1 km run under tropical skies. With race-day temperatures around 76°F (24°C) in the water and 82°F (28°C) on land, smart preparation is key to unlocking your best ...