From the moment Simone Biles stepped out into the arena, victory never looked in doubt as the American star dazzled her way to her maiden individual Olympic gold medal in the women's all-around competition today.

Kenya have suffered a further blow on the eve of the Olympic athletics competition as coach John Anzrah has been sent home from Rio 2016 for impersonating an athlete and providing a urine sample.

Germany's Barbara Engleder became her nation's first gold medal-winning shooter since 2004 today as she won the women's 50 metres rifle three positions competition with an Olympic record score at Rio 2016.

Portugal and Costa Rica lead the team standings after another busy day of action at the International Surfing Association (ISA) World Surfing Games in Playa Jaco in Costa Rica.

The first day of Rio 2016 rowing finals ended with Germany heading the medals table after taking gold in both men’s and women’s quad sculls.

As South Africa’s Caster Semenya heads towards what could be a controversial victory in the women’s 800m final at these Olympic Games,International Association of Athletics Federations (IAAF) President Sebastian Coe has underlined his organisation’s intention to challenge the ruling which suspended the monitoring of female athletes with higher than usual levels of testosterone.

Judo is now among the most international of sports, with medal contenders from all over the globe, but founding fathers Japan showed they remain the team to beat here today by winning both Olympic gold medals decided today with clinical ruthlessness.

Italy's Alex Schwazer, who is here in Rio ahead of the men’s 20 kiloemtres walk on the first day of the athletics programme on Friday (August 12), has had his appeal against an eight-year ban for a second doping violation turned down by the Court of Arbitration for Sport.

Since women’s table tennis was introduced to the Olympics at Seoul in 1988 there has been only one country providing the individual gold medallist, namely China – and Ding Ning maintained that incredible run tonight here as she reversed the result of the London 2012 final against compatriot Li Xiaoxia.

Teenager Kyle Chalmers sensationally claimed Australia's first 100 metres freestyle Olympic title for nearly half-a-century tonight as his room-mate - and pre-race favourite -  Cameron McEvoy finished seventh. 

Great champions perform at their best when under pressure and Japan's "King Kōhei" Uchimura did exactly that here tonight, becoming the first male gymnast to successfully defend an Olympic all-around title for 44 years. 

Major changes to the governance of world athletics, approved here today by the International Association of Athletics Federations Council, will make “a massive difference” to the sport, according to its President Sebastian Coe.

Áron Szilágyi of Hungary successfully defended his men’s sabre Individual title with a 15-8 win over Daryl Homer of the United States at the Carioca Arena today, but Italy’s London 2012 foil individual champion Elisa Di Francisca narrowly failed to do the same as she was beaten 12-11 by Russia’s world champion Inna Deriglazova.

Kazakhstan's Nijat Rahimov smashed the clean and jerk world record to steal the men’s 77 kilograms Olympic weightlifting gold medal from the grasp of China’s Lyu Xiaojun at the Riocentro - Pavilion 2 venue in Rio de Janeiro. 

Yelena Isinbayeva officially confirmed tonight that she will stand to become the new President of the All-Russia Athletic Federation (ARAF) and her main target will be to get the country's ban from international competition lifted as soon as possible.