1983 World Championships in Athletics – Men's 400 metres
Introduction These are the official results of the '''men's 400 metres''' event at the '''1983 IAAF World Championships''' in Helsinki, Finland. There were a total number of 55 participating athletes, with seven qualifying heats and the final held on 10 August 1983.
Records Existing records at the start of the event. '''World Record''''''43.86'''Mexico City, MexicoOctober 18, 1968'''Championship Record'''''New event''
Results ===Qualifying heats===The qualifying heats took place on 7 August, with the 55 athletes involved being split into 7 heats. The first 3 athletes in each heat ( Q ) and the next 11 fastest ( q ) qualified for the quarter-finals. ;Heat 1Rank  Name  Nationality  Time  Notes 1Sunder Nix46.19Q, 2Gerson A. Souza46.43Q3Philip Brown46.60Q4Isidro del Prado46.92q5Aldo Canti47.506Gordan Hinds47.557Kenrick Camerud49.68Paiwa Bogela;Heat 2Rank  Name  Nationality  Time  Notes 1Bert Cameron46.11Q, 2Ján Tomko46.17Q3Thomas Schönlebe46.23Q4Sándor Vasvári46.69q5Abu Alhassan48.146Salem Khalil Ibrahim48.167Ali Al Harazi59.67Ángel Heras;Heat 3Rank  Name  Nationality  Time  Notes 1Erwin Skamrahl46.31Q2Todd Bennett46.58Q3Douglas Hinds46.64Q4Gary Minihan46.90q5James Atuti46.95q6Dean Greenaway48.26Emmanuel Bitanga;Heat 4Rank  Name  Nationality  Time  Notes 1Michael Paul46.33Q2Moses Kyeswa46.35Q3Susumu Takano46.66Q4Eliot Tabron46.68q5Marcel Arnold47.44q6David Sawyerr49.297Lenford O'Garro50.25Nafi Ahmed Mersal;Heat 5Rank  Name  Nationality  Time  Notes 1Martin Weppler46.32Q2Hassan El Kachief46.61Q3Viktor Markin46.74Q4Gabriel Tiacoh47.11q5Hector Daley47.19q6Eric Josjö47.25q7Jean-Marie Rudasinqwa50.52Allan Ingraham;Heat 6Rank  Name  Nationality  Time  Notes 1Michael Franks46.16Q2Oddur Sigurdsson47.09Q3Christopher Madzokere47.17Q4Dušan Malovec47.35q5Moussa Fall47.726Joseph Ramotshabi48.357Agripa Mwausegha49.02Sunday Uti;Heat 7Rank  Name  Nationality  Time  Notes 1Hartmut Weber45.74Q, 2Darren Clark46.26Q3Mike Okot46.69Q4Matti Rusanen47.37q5Adram M'Kumi49.226Clive Williams51.82Mike SolomonRoberto Ribaud===Quarterfinals===The qualifying heats took place on 8 August, with the 32 athletes involved being split into 4 heats. The first 4 athletes in each heat ( Q ) qualified for the semifinals. ;Heat 1Rank  Name  Nationality  Time  Notes 1Michael Franks45.57Q, 2Philip Brown45.80Q3Thomas Schönlebe45.86Q4Martin Weppler46.12Q5Gary Minihan46.326Mike Okot46.387Christopher Madzokere46.74Dušan Malovec;Heat 2Rank  Name  Nationality  Time  Notes 1Bert Cameron45.76Q2Darren Clark45.84Q3Erwin Skamrahl45.90Q4Gerson A. Souza45.94Q5Gabriel Tiacoh46.226Eliot Tabron46.547Isidro del Prado46.718Matti Rusanen47.69;Heat 3Rank  Name  Nationality  Time  Notes 1Hartmut Weber46.01Q2Moses Kyeswa46.31Q3Michael Paul46.44Q4Douglas Hinds46.62Q5Susumu Takano47.066James Atuti47.597Oddur Sigurdsson48.09Marcel Arnold;Heat 4Rank  Name  Nationality  Time  Notes 1Viktor Markin46.16Q2Sunder Nix46.19Q3Ján Tomko46.24Q4Todd Bennett46.39Q5Hector Daley46.426Eric Josjö46.977Sándor Vasvári47.34Hassan El Kachief===Semifinals===The semifinals took place on 9 August, with the 16 athletes involved being split into 2 heats. The first 4 athletes in each heat ( Q ) qualified for the final. ;Heat 1Rank  Name  Nationality  Time  Notes 1Michael Franks45.44Q, 2Hartmut Weber45.61Q3Thomas Schönlebe45.67Q4Michael Paul45.83Q5Ján Tomko46.036Todd Bennett46.117Darren Clark46.368Martin Weppler46.55;Heat 2Rank  Name  Nationality  Time  Notes 1Bert Cameron45.48Q2Erwin Skamrahl45.61Q3Gerson A. Souza45.63Q4Sunder Nix45.73Q5Viktor Markin45.736.Douglas Hinds46.527.Moses Kyeswa46.798.Philip Brown46.81===Final===The final took place on August 10.Rank  Lane  Name  Nationality  Time  Notes 4Bert Cameron45.055Michael Franks45.221Sunder Nix45.2447Erwin Skamrahl45.3753Hartmut Weber45.4966Thomas Schönlebe45.5078Michael Paul45.8082Gerson A. Souza45.91
References *  Results