Julia Mumbi Muraga of Kenya, the 2014 Cologne Marathon winner in 2:28:00, has tested positive for the blood booster EPO and been banned for two years by Athletics Kenya, Reuters reports.

The German Anti-Doping Agency reported the positive test, stripped Muraga of her title, and named Ethiopia’s Shasho Insermu, who finished more than seven minutes behind Muraga, as the winner of the September race.

Muraga fastest marathon was a third-place 2:26:00 in Osaka in 2008. She represented Kenya internationally at the 2008 World Half Marathon Championships and the 2009 World Championships Marathon, where she placed 11th.

Muraga is the latest in a growing list of Kenyan marathoners who’ve been given competitive bans as the country’s distance running prowess is subjected to increased scrutiny. The most prominent of the banned athletes is Rita Jeptoo, the winner of the 2013 and 2014 Boston and Chicago Marathons, whose two-year ban for EPO use extends through October 29, 2016.

Muraga can appeal her case before Athletics Kenya, according to a federation official and, if necessary after that, to the Court of Arbitration for Sport in Switzerland.

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