Winner of the Boston and Chicago marathons, Rita Jeptoo of Kenya, failed an out-of-competition test in October. Two more Kenyan athletes have tested positive and been banned for two years. Photograph: Jonathan Daniel/Getty Images

Kenyan long-distance runners Viola Chelangat Kimetto and Joyce Jemutai Kiplimo have failed drugs tests and will be banned for two years, Athletics (...)

Kenyan marathon runner  Rita Jeptoo, seen here winning   the Chicago Marathon earlier this month, tested positive for a banned substance  during an out of competition test. Photograph: David Banks/EPA

Kenya’s Rita Jeptoo, winner of the Boston and Chicago Marathons for the last two years, has failed an out-of-competition doping test, Athletics Kenya (...)

Meb Keflezighi is congratulated after winning the men’s division of the Boston Marathon. He described the crowd as phenomenal” and said: “I used them to propel me forward.” Photograph: Reuters/Brian Snyder

Record crowds basked in bright sunshine to cheer on runners in the second largest field in the Boston Marathon’s 118-year history as this proud(...)

London Marathon men’s winner Tsegaye Kebede of Ethiopia after the race  on the Mall in central London. Photograph: Reuters

Amid the tightened security and heightened emotion prompted by the tragic events in Boston last week, Tsegaye Kebede of Ethiopia and Kenya’s P(...)