400 metres hurdles technique needed to compete. As of August 2018 !Rank !Time !Athlete !Country !Date !Venue !Ref !1 !2 !rowspan=2|3 400 metres hurdles The 400 metres hurdles is a track and field hurdling event. The event has been on the Olympic athletics programme since 1900 for men and since 1984 for women. On a standard outdoor track, 400 metres is the length of the inside lane, once around the stadium. Runners stay in their lanes the entire way after starting out of the blocks and must clear ten hurdles that are evenly spaced around the track. The hurdles are positioned and weighted
Athletics at the 2016 Summer Olympics – Men's 110 metres hurdles time comparison, and those athletes were allowed to run in a repechage round to improve their qualifying time. Two athletes Deuce Carter and Alexander John had been disqualified for failure to properly clear hurdles in those earlier races and were allowed to re-enter. Carter qualified for the semi-finals from the special race. Qualification rule: first 4 of each heat (Q) plus the 4 fastest times (q) qualified. Athletics at the 2016 Summer Olympics – Men's 110 metres hurdles The men's 110 metres hurdles event at the 2016 Summer Olympics took place between 15–16 August at the Olympic Stadium. The 2012