Japanese Junya Koga’s four-year suspension for an anti-doping rule violation has been reduced to two years after it was found that his supplements may have been contaminated, the Court Of Arbitration for Sport (CAS) said on Friday.

Koga, a gold medallist in the world championships in 2009 (100 meters backstroke) and 2016 (50 meters backstroke), tested positive in March last year for ostarine and ligrandrol, which are on the World Anti-Doping Agency (WADA) prohibited list.

Koga was handed a four-year ban until March 2022 by the International Swimming Federation (FINA) before the 32-year-old filed an appeal in October last year at CAS, who amended FINA’s original decision.

“In June 2019, the parties informed the CAS that having agreed that contaminated supplements were the most likely source… of both the ostarine and ligrandrol found in Junya Koga’s samples, they had signed a settlement agreement,” CAS said in a statement.

Read Japan Today and the CAS Media Release

The entrance of the headquarters of the Court of Arbitration for Sport, in Lausanne, Switzerland.
By Fanny SchertzerOwn work, CC BY 3.0, Link
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Production engineer and certified swim coach. Full-time IT consultant, spare-time swimming aficionado. 2 sons, 2 daughters and a wife. President of the Faroe Islands Aquatics Federation. Likes to run :-)

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