Arguably the greatest ever marathon runner, he is the first to break two hours for the event. The son of a Kenyan farmer, he ran two miles to school every morning. He began his career as a 5,000 metres specialist, winning an Olympic gold medal in Athens in 2004 and a silver four years later. After switching to road racing in 2012, he won the Olympic marathon gold medal in Rio de Janeiro in 2016. Has won the London Marathon a record four times.