Watch: Only world record broken at Enhanced Games won't be recognised

The BBC's Shaimaa Khalil explains why the achievement by Greek swimmer Kristian Gkolomeev will not be accepted by official sporting bodies. Copyright current_year BBC. All rights reserved. The BBC is not responsible for the content of external sites. Read about our approach to external linking. Copyright current_year BBC. All rights reserved. The BBC is not responsible for the content of external sites. Read about our approach to external linking. Composite image showing BBC's Shaimaa Khalil on the left and swimmer Kristian Gkolomeev holding two trophies Watch: Only world record broken at Enhanced Games won't be recognised Swimmer Kristian Gkolomeev of Greece has beaten a world record at the controversial Enhanced Games in Las Vegas. The 32-year-old clocked 20.81 seconds in the men's 50m freestyle - but his time will not be recognised by official authorities. The results are considered illegal by global sporting bodies because athletes can take banned performance-enhancing drugs. 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