12 riders test positive from samples collected on a single day in Costa Rica stage race

Union Cycliste Internationale confirms that 12 riders returned adverse analytical findings from samples taken on December 22 at the Vuelta Ciclista Internacional a Costa Rica

An amateur racer has been banned for doping

(Image credit: Yuzuru Sunada)

Twelve riders returned adverse analytical findings for banned blood-boosting drugs at the 2017 Vuelta Ciclista Internacional a Costa Rica from samples taken on just a single day of the race. One of those who tested positive, Juan Carlos Rojas, was the overall race winner.

The Union Cycliste Internationale (UCI) confirmed the 12 positive test results in a statement issued on Wednesday. It said that the results were from samples collected from the riders on December 22 2017 – the day of the 10-stage race's individual time trial, won by Rojas.

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