Vadim Zadoynov (Russian: Вадим Задойнов, born 24 May 1969) is a Moldovan athlete who specialized in the 400 metres hurdles.
Zadoynov was born in Chişinău.[1] He won the bronze medal for the Soviet Union at the 1988 World Junior Championships.[2] At the 1990 European Championships he finished fourth in the 400 m hurdles and eighth in the 4 × 400 m relay.[3] At the 1992 Olympic Games he was knocked out in the heats.[1]
Zadoynov also competed at the World Championships in 1993, 1995, 1997 and 1999, and only reached the semi-final once; in 1997.[2] He was also knocked out in the heats at the Olympic Games in 1996 and 2000.[1] He finished seventh at the 1994 European Championships and fifth at the 1998 European Championships.[4]
Zadoynov's personal best time was 48.61 seconds, achieved at the 1990 European Championships in Split.[2]
| Year | Competition | Venue | Position | Event | Notes |
|---|---|---|---|---|---|
Representing  Soviet Union
| |||||
| 1987 | European Junior Championships | Birmingham, United Kingdom | 3rd | 4 × 400 m relay | 3:09.55 |
| 1988 | World Junior Championships | Sudbury, Canada | 3rd | 400 m hurdles | 50.88 |
| 1990 | Goodwill Games | Seattle, United States | 7th | 400 m hurdles | 50.48 |
| European Championships | Split, Yugoslavia | 4th | 400 m hurdles | 48.61 (NR) | |
| 8th | 4 x 400 m relay | 3:04.17 | |||
Representing  Unified Team
| |||||
| 1992 | Olympic Games | Barcelona, Spain | 34th (h) | 400 m hurdles | 51.21 |
Representing  Moldova
| |||||
| 1993 | World Championships | Stuttgart, Germany | 27th (h) | 400 m hurdles | 50.24 |
| 1994 | Goodwill Games | Saint Petersburg, Russia | 5th | 400 m hurdles | 49.83 |
| European Championships | Helsinki, Finland | 7th | 400 m hurdles | 49.50 (49.30 semis) | |
| 1995 | World Championships | Gothenburg, Sweden | 28th (h) | 400 m hurdles | 50.24 |
| 1996 | European Indoor Championships | Stockholm, Sweden | 5th (h) | 400 m | 47.09 (NR) |
| Olympic Games | Atlanta, United States | 28th (h) | 400 m hurdles | 49.73 | |
| 1997 | World Indoor Championships | Paris, France | 25th (h) | 400 m | 48.18 |
| World Championships | Athens, Greece | 21st (sf) | 400 m hurdles | 50.07 (49.49 heats) | |
| 1998 | European Championships | Budapest, Hungary | 5th | 400 m hurdles | 49.10 |
| 1999 | World Championships | Seville, Spain | 32nd (h) | 400 m hurdles | 50.14 |
| 2000 | Olympic Games | Sydney, Australia | 39th (h) | 400 m hurdles | 51.08 |
| (#) Indicates overall position in qualifying heats (h) or semifinals (sf) | |||||
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