| 2021 | ||||
| (Tokyo, August 4) | ||||
| 1. | Sydney McLaughlin (USA) | 51.46 | WR/OR | |
| 2. | Dalilah Muhammad (USA) | 51.58 | ||
| 3. | Femke Bol (Netherlands) | 52.03 | ||
| 4. | Janieve Russell (Jamaica) | 53.08 | ||
| 5. | Anna Ryzhykova (Ukraine) | 53.48 | ||
| 6. | Viktoriya Tkachuk (Ukraine) | 53.79 | ||
| 7. | Gianna Woodruff (Panama) | 55.84 | ||
| dq. | Anna Cockrell (USA) | |||
| 2016 | ||||
| (Rio de Janeiro, August 18) | ||||
| 1 | Dalilah Muhammad (USA) | 53.13 | ||
| 2 | Sara Slott Petersen (Denmark) | 53.55 | ||
| 3 | Ashley Spencer (USA) | 53.72 | ||
| 4 | Zuzana Hejnová (Czech Republic) | 53.92 | ||
| 5 | Ristananna Tracey (Jamaica) | 54.15 | ||
| 6 | Leah Nugent (Jamaica) | 54.45 | ||
| 7 | Janeive Russell (Jamaica) | 54.56 | ||
| 8 | Eilidh Doyle (Great Britain) | 54.61 | ||
| [Sydney McLaughlin (USA) 5th in semi (56.22)] | ||||
| 2012 | ||||
| (London, August 8) | ||||
| 1 | Natalya Antyukh (Russia) | 52.70 | OR | |
| 2 | Lashinda Demus (USA) | 52.77 | ||
| 3 | Zuzana Hejnová (Czech Republic) | 53.38 | ||
| 4 | Kaliese Spencer (Jamaica) | 53.66 | ||
| 5 | Georganne Moline (USA) | 53.92 | ||
| 6 | T’erea Brown (USA) | 55.07 | ||
| 7 | Denisa Rosolová (Czech Republic) | 55.27 | ||
| 8 | Joke Odumosu (Nigeria) | 55.31 | ||
| 2008 | ||||
| 1 | Melaine Walker (Jamaica) | 52.64 | ||
| 2 | Sheena Tosta (USA) | 53.70 | ||
| 3 | Tasha Danvers (Great Britain) | 53.84 | ||
| 4 | Anastasiya Rabchenyuk (Ukraine) | 53.96 | ||
| 5 | Anna Jesień (Poland) | 54.29 | ||
| 6 | Yekaterina Bikert (Russia) | 54.96 | ||
| 7 | Zuzana Hejnová (Czech Republic) | 54.97 | ||
| 8 | Tiffany Williams (USA) | 57.55 | ||
| [Queen Harrison (USA) 7th in semi] | ||||
| 2004 | ||||
| 1 | Faní Halkiá (Greece) | 52.82 | ||
| 2 | Ionela Tîrlea (Romania) | 53.38 | ||
| 3 | Tetyana Tereshchuk-Antipova (Ukraine) | 53.44 | ||
| 4 | Sheena Tosta (USA) | 53.83 | ||
| 5 | Jana Pittman (Australia) | 53.92 | ||
| 6 | Yekaterina Bikert (Russia) | 54.18 | ||
| 7 | Brenda Taylor (USA) | 54.97 | ||
| 8 | Yuliya Pechonkina (Russia) | 55.79 | ||
| [Lashinda Demus (USA) 5th in semi] | ||||
| 2000 | ||||
| 1 | Irina Privalova (Russia) | 53.02 | ||
| 2 | Deon Hemmings (Jamaica) | 53.45 | ||
| 3 | Nezha Bidouane (Morocco) | 53.57 | ||
| 4 | Daimí Pernía (Cuba) | 53.68 | ||
| 5 | Tetyana Tereshchuk-Antipova (Ukraine) | 53.98 | ||
| 6 | Ionela Tîrlea (Romania) | 54.35 | ||
| 7 | Gudrún Arnardóttir (Iceland) | 54.63 | ||
| 8 | Tasha Danvers (Great Britain) | 55.00 | ||
| [Kim Batten (USA) 6th in semi] | ||||
| [Sandra Glover (USA) 6th in semi] | ||||
| [Tonja Buford-Bailey (USA) 4th in heat] | ||||
| 1996 | ||||
| 1 | Deon Hemmings (Jamaica) | 52.82 | ||
| 2 | Kim Batten (USA) | 53.08 | ||
| 3 | Tonja Buford-Bailey (USA) | 53.22 | ||
| 4 | Debbie Parris (Jamaica) | 53.97 | ||
| 5 | Heike Meissner (Germany) | 54.03 | ||
| 6 | Rosey Edeh (Canada) | 54.39 | ||
| 7 | Ionela Tîrlea (Romania) | 54.40 | ||
| 8 | Silvia Rieger (Germany) | 54.57 | ||
| [Sandra Farmer-Patrick (USA) 5th in semi] | ||||
| [Hemmings 52.82 OR] | ||||
| 1992 | ||||
| 1 | Sally Gunnell (Great Britain) | 53.23 | ||
| 2 | Sandra Farmer-Patrick (USA) | 53.69 | ||
| 3 | Janeene Vickers (USA) | 54.31 | ||
| 4 | Tatyana Ledovskaya (Belarus) | 54.31 | ||
| 5 | Vera Ordina (Russia) | 54.83 | ||
| 6 | Margarita Ponomaryova (Russia) | 54.83 | ||
| 7 | Deon Hemmings (Jamaica) | 55.58 | ||
| DNF—Myrtle Bothma (South Africa) | ||||
| [Tonja Buford-Bailey (USA) 6th in semi] | ||||
| 1988 | ||||
| 1 | Debbie Flintoff-King (Australia) | 53.17 | ||
| 2 | Tatyana Ledovskaya (Soviet Union) | 53.18 | ||
| 3 | Ellen Fiedler (East Germany) | 53.63 | ||
| 4 | Sabine Busch (East Germany) | 53.69 | ||
| 5 | Sally Gunnell (Great Britain) | 54.03 | ||
| 6 | Gudrun Abt (West Germany) | 54.04 | ||
| 7 | Tatyana Kurochkina (Soviet Union) | 54.39 | ||
| 8 | LaTanya Sheffield (USA) | 55.32 | ||
| [Schowonda Williams (USA) 7th in semi] | ||||
| [Leslie Maxie (USA) 5th in heat] | ||||
| [Fiedler 54.58 OR {quarter}; Flintoff-King 54.00 OR {semi}, | ||||
| 53.17 OR] | ||||
| 1984 | ||||
| 1 | Nawal El Moutawakel (Morocco) | 54.61 | ||
| 2 | Judi Brown-King (USA) | 55.20 | ||
| 3 | Cristina Cojocaru (Romania) | 55.41 | ||
| 4 | P.T. Usha (India) | 55.42 | ||
| 5 | Ann-Louise Skoglund (Sweden) | 55.43 | ||
| 6 | Debbie Flintoff-King (Australia) | 56.21 | ||
| 7 | Tuija Helander (Finland) | 56.55 | ||
| 8 | Sandra Farmer-Patrick (Jamaica) | 57.15 | ||
| [Sharrieffa Barksdale (USA) 5th in semi] | ||||
| [Angie Wright (USA) 6th in heat] | ||||
| [Brown 55.97 OR {heat}; Skoglund 55.75 OR {heat}, 55.17 OR | ||||
| {semi}; El Moutawakel 54.61 OR] | ||||
| 1980 | ||||
| (1928-1980 not contested) |