“Sumgong will therefore not run in London on 23 April to defend the title she won last year. She is currently the leader in the Abbott World Marathon Majors (Abbott WMM) Series X standings which concludes in Boston on 17 April. Under Abbott WMM rules, if she were to finish top of the rankings at conclusion of the Series, an athlete who fails a drug test and is banned is not eligible to win the Series or to receive any prize money.
“Sumgong’s provisional positive test came from one of the Abbott WMM-funded out of competition tests.
“In addition, London Marathon Events will take legal proceedings against athletes who have been disqualified from its events for failed tests if they do not repay money that they have received from the event.”