ROWING
On bicycles, tricycles, handbikes and tandems, athletes compete against each other in long-distance road races and against the clock in time trials.
Rowing boats of varying lengths and crew sizes race over a straight 1 km course – the boat that crosses the finish line first is the winner.
The women's single sculls champion at the London 2012 Games, Ukrania Alla Lysenko, continues to shine at the age of 44 and is aiming for gold in Rio