| Birth Date: | 12 October 1985 |
| Birth Place: | Zhdanov, Soviet Union |
Olga Beresnyeva (Ukrainian: Ольга Береснєва, Hebrew: אולגה ברנסייבה; born 12 October 1985[1]),[2] is an Olympic and national-record holding distance swimmer for Ukraine. She also competed for Israel between 2004 and 2010, before returning to her native Ukraine.
She has swum at the:
She swam for Ukraine at her first Olympic Games in 2000, at the age of 14;[2] and at her second Olympics in 2004.
At the 2003 World Championships, she set the Ukraine Record in the 1500 free (16:27.76).
After the 2004 Olympics, she change sport nationality to Israel.[3] After failing to qualify for the 2008 Olympics, Beresnyeva returned to Ukraine.[2] [4]
Originally a distance swimmer in the pool, she began swimming open water races in 2008.[2] Beresnyeva won the 25K race at the 2010 European Championships, the first time she swam the race.[5]
She swam in her third Olympics in 2012, swimming the Open Water event, but was disqualified and excluded from the Games by the IOC in June 2015 after re-analysis of a drug test showed she had been doping.[6]