Great Britain and Northern Ireland has participated in all the World Athletics Championships since the events beginning in 1983. The team is 7th on the all time medal table Mo Farah is the most successful British Athlete in championships history, as well as the most successful distance runner in championships history with six gold and two silver medals split evenly between 5000 metres and 10,000 metres. Jessica Ennis-Hill is the most successful British female athlete with three gold medals in heptathlon. Farah and Christine Ohuruogu, with two gold, a silver and five bronze medals are the most decorated British athletes in championships history with eight medals apiece. Great Britain's most successful event has been Heptathlon with four gold medals, and eight medals.