The International Association of Athletics Federations (IAAF) conducted 1405 doping controls during the 2015 World Championships in Athletics which ended on Sunday in Beijing, China.

The doping-control programme implemented by the IAAF in Beijing was the largest implemented in a single sporting event by any sport since the IAAF World Championships in Moscow two years ago.

The breakdown of the testing includes, 662 blood tests for screening purposes in the context of the Athlete Biological Passport, all carried out at the athletes' hotels prior to the event, as well as 161 blood tests for the detection of human growth hormone and Erythropoiesis stimulating agents.

Urine tests

There were 54 urine tests conducted out-of-competition and 528 urine tests conducted at the stadium, 239 of which will be specifically analysed for EPO and related substances.

The World Championship programme was highly targeted in nature. Thousands of samples were collected out-of-competition in the lead-up to the event, and the IAAF implemented an intelligence-led programme in Beijing, which will see the samples frozen and stored for future re-analysis as science and technology progresses.

Testing programme

Such a large testing programme could only have been implemented with the assistance and support of local partners in China.

The World Anti-Doping Agency accredited laboratory in Beijing managed the sample analysis process efficiently and effectively, providing accurate and quick reporting to the IAAF anti-doping staff on site.

As of September 1, the Beijing laboratory has notified the IAAF of two positives tests, both of which have been publicly released by the IAAF:

Should any of the remaining samples be reported as positive, the IAAF will make a public announcement when the rules allow.