Josh Griffiths, a prominent British marathoner, received a three-month ban from Athletics Integrity Unit. The ban followed a positive test for benzoylecgonine, a cocaine metabolite, after the Belfast Marathon. Griffiths, who finished fourth, denies using cocaine and claims contamination.

Griffiths' ban ran from June 19 to September 18, disqualifying his results from May 3. He accepted the violation and agreed to the sanction without a hearing. The AIU accepted his claim that the ingestion occurred out of competition. Read more racing coverage.

Griffiths rose to prominence at the 2017 London Marathon, finishing as the fastest British runner. He has represented Great Britain in multiple international competitions, including the World Championships and Commonwealth Games. Related: Russian Marathoner Claims Record in Jeans at Porto Marathon.

This original Runner World brief is based on reporting from Athletics Weekly. Visit the source for its complete reporting, context and any later corrections.