Sergey Usov (; born 16 January 1964 in Tashkent) is a retired Belarusian athlete who specialised in the sprint hurdles. He competed at the 1992 Summer Olympics, reaching the semifinals, as well as two outdoor and two indoor World Championships.
His personal bests are 13.27 seconds in the 110 metres hurdles (+1.8 m/s, Leningrad 1988), which is also the current Uzbekistani national record, and 7.58 seconds in the 60 metres hurdles (Moscow 1991).
Competition record Representing the 1983European Junior ChampionshipsSchwechat, Austria2nd110 m hurdles13.961984Friendship GamesMoscow, Soviet Union4th110 m hurdles13.751985World CupCanberra, Australia2nd110 m hurdles13.621987World ChampionshipsRome, Italy20th (h)110 m hurdles13.901988European Indoor ChampionshipsBudapest, Hungary4th60 m hurdles7.671990Goodwill GamesSeattle, United States6th110 m hurdles13.95European ChampionshipsSplit, Yugoslavia7th110 m hurdles13.651991World Indoor ChampionshipsSeville, Spain5th60 m hurdles7.66Representing the 1992Olympic GamesBarcelona, Spain10th (sf)110 m hurdles13.67World CupHavana, Cuba2nd110 m hurdles13.55Representing 1993World Indoor ChampionshipsToronto, Canada8th60 m hurdles7.90World ChampionshipsStuttgart, Germany29th (h)110 m hurdles13.901994European Indoor ChampionshipsParis, France9th (sf)60 m hurdles7.70
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