Kenyan marathon runner Rita Jeptoo tests positive for doping.

• The marathoner Rita Jeptoo’s positive doping test was for the blood booster erythropoietin, known as EPO, Kenyan athletics officials said. That's the same banned blood-booster that Lance Armstrong relied on to dominate the Tour de France.
• Jeptoo, 33, won her second straight title in Chicago on Oct. 12. The failed test was about two weeks earlier.
• Jeptoo denies using EPO. The running world awaits the results of a "B sample" test before there's a definitive ruling.
• Jeptoo’s estranged husband, Noah Busienei, has gone on record with his belief that his wife, who won her first Boston Marathon in 2006, started doping in 2011 as her post-maternity racing comeback began. 
• The “B” test, conducted last week at the World Anti-Doping Agency lab in Lausanne, Switzerland, verified the “A” result from Jeptoo’s out-of-competition test. 
• January 2015 hearing will determine Boston and Chicago champ's future.

The 33-year-old had been due to collect the women’s WMM prize, including a cheque for $500,000, on Sunday after the final event in the series, the TCS New York City Marathon, having secured her WMM series victory with a win at the Bank of America Chicago Marathon on October 12.

Rita Jeptoo allegedly failed the drugs test prior to winning the Chicago Marathon earlier this month, her fourth successive World Marathon Major title 

Kenya's Rita Jeptoo holds the trophy after winning the women's division at the 118th running of the Boston Marathon in Boston, Massachusetts April 21, 2014.

Jeptoo, who took a two-year maternity leave before returning to professional running in 2010, has put together a string of impressive performances in recent years.

Jeptoo won Boston in a course record 2:18 57 on a day when the men ran more than five minutes behind their record pace.

Edna Kiplagat is another Kenyan who has the most to gain if Jeptoo is eliminated, since she is in second place in the WMM standings.

Rita Jeptoo with her son Shem