Great Britain

Holding a firm position in the top five since 2008, the UK is betting on sports such as athletics, cycling, swimming, rowing and sailing this year to keep their third place gained at London 2012.

Athletics

Origin
Athletics are among the oldest of all sports and their roots can be traced to the ancient Greek Olympics.
Rules and Objective
The three main athletic events consist of running, jumping and throwing.

Rowing

Origin
The all-time Olympic discipline began as a sport in the 17th and early 18th centuries, with the Oxford-Cambridge university boat race.
Rules and Objective
The two main types of rowing are sweeping, where rowers each use a single oar, and sculling where they use two.

Track Cycling

Origin
Track races existed as early as 1870 and was included in the inaugural Olympics Games in 1896.
Rules and Objective
There are five types of track race at the Olympics: keirin, omnium, sprint, team sprint and team pursuit.

Sailing

Origin
International yacht racing began in 1851 in the US, and first contested as an Olympic sport at the 1900 Paris Games.
Rules and Objective
Sailors get points based on their finishing positions, and the top 10 compete in a final.

Tennis

Origin
The modern game was born in England in the late 19th century. It returned as an Olympic sport in 1988 after its withdrew in 1924.
Rules and Objective
Each match is the best of three sets except the men’s singles final, which is the best of five sets.

Boxing

Origin
It was accepted by the ancient Greeks as an Olympic game in BC 688, and has been contested at the modern Olympics since 1904.
Rules and Objective
Boxers are scored on successful landed blows, domination over an opponent, competitiveness, technique, tactics and adherence to the rules of the sport.

Swimming

Origin
It has existed since the Stone Age, but only became an organised sport in the early 19th century.
Rules and Objective
Swimmers start from blocks after the starting pistol is fired. Backstroke is the only stroke where swimmers start in the water rather than blocks.

Shooting

Origin
The sport has been practised for hundreds of years, and been included as an Olympic sport since the first modern Games in 1896
Rules and Objective
The score in the final round is added to the qualification round to determine the winner.

Equestrian Eventing

Origin
First included at the Paris Games in 1900, Eventing was initially created to test officers and horses for any possible challenges.
Rules and Objective
A rider who has the lowest number of penalties across the three disciplines wins.

Water polo

Origin
The sport began as a demonstration of strength and swimming skill in the late 19th century, and was introduced at the modern Games in 1900.
Rules and Objective
Fouls are awarded for sinking under the water, touching the bottom or side of the pool, holding an opponent.