Christine Ijeoma Ohuruogu, MBE is a British former track and field athlete who specialised in the 400 metres, the event for which she is an Olympic, World and Commonwealth champion. The Olympic champion in 2008, and silver medalist in 2012, she is a double World Champion, having won the 400 m at the 2007 and 2013 World Championships. She has also won six World championship medals in the women's 4 × 400 m relay as part of the Great Britain and Northern Ireland team and bronze Olympic medals with the women's 4 × 400 m relay at the 2008 Beijing Games and the 2016 Rio Games, her final Olympics. Ohuruogu shares with Merlene Ottey and Usain Bolt the record for medalling in most successive global championships – 9 – between the 2005 World Championships in Athletics and the 2016 Summer Olympics.
The 100 metres hurdles, or 100-meter hurdles, is a track and field event run mainly by women. For the race, ten hurdles of a height of 33 inches (83.8 cm) are placed along a straight course of 100 metres (109.36 yd). The first hurdle is placed after a run-up of 13 metres from the starting line. The next 9 hurdles are set at a distance of 8.5 metres from each other, and the home stretch from the last hurdle to the finish line is 10.5 metres long. The hurdles are set up so that they will fall over if bumped into by the runner, but weighted so this is disadvantageous. Fallen hurdles do not count against runners provided that they do not run into them on purpose. Like the 100 metres sprint, the 100 m hurdles begins with athletes in starting blocks.
Kirani James is a Grenadian professional sprinter who specializes in the 200 and 400 metres. He won the 400 m at the World Championships in 2011, and the 2012 London Olympics. In the 400 metres, James also won the silver medal at the 2016 Rio Olympics, and bronze medal at the 2020 Tokyo Olympics, thus becoming the first man to earn the full set of three medals in the centennial history of the event. He is Grenada's first and only Olympic medalist.
The London Diamond League, formerly known as the London Grand Prix and subsequently as the Anniversary Games, is an annual athletics event held in London, England. Previously one of the five IAAF Super Grand Prix events, it is now part of the Diamond League. As the London Grand Prix, until 2012 all editions were held at the National Sports Centre in Crystal Palace. The 2013 edition was renamed the Anniversary Games as it took place at the Stadium in Queen Elizabeth Olympic Park, exactly one year after the Olympic Games were held in the same venue and have been followed by an IPC London Grand Prix, making it a three-day event. In 2014 the meet was held in Glasgow, Scotland, as preparation for the Commonwealth Games held there later that month.
Grenada competed at the 2012 Summer Olympics in London, United Kingdom from 27 July to 12 August 2012. This was the nation's eighth consecutive appearance at the Olympics. Few weeks before the Games, Grenadian athletes trained at Broadbridge Heath Leisure Centre near Horsham, West Sussex.
Rondell Bartholomew is a Grenadian track and field sprinter who specialises in the 400 metres. He has represented his country at two World Championships in Athletics and was a 400 m world finalist in 2011. His personal best for the event is 44.65 seconds.
Barbados competed in the 2011 Commonwealth Youth Games held in the British Crown Dependency of Isle of Man from September 7 to 13, 2011. The nation was represented by the Barbados Olympic Association, which is responsible for the Commonwealth Games and Commonwealth Youth Games in Barbados.
The 2012 Summer Olympics, officially known as the Games of the XXX Olympiad, were a summer multi-sport event held in London, the capital of the United Kingdom, from 27 July to 12 August. A total of 10,768 athletes from 204 nations participated in 302 events in 26 sports across 39 different disciplines.
Melissa Breen is an Australian 100 metres and 200 metres runner. Breen broke the Australian record for the women's 100 m sprint, when she clocked 11.11 seconds at the ACT Championships, held on 9 Feb 2014 at the Australian Institute of Sport track in Canberra under ideal conditions with a 1.9 mps following wind, warm conditions and 600+ metres elevation. This broke a record previously held by Melinda Gainsford-Taylor, which had stood for more than 20 years.
Emily Diamond is a British track and field athlete, who competes in the 200 metres and 400 metres. Diamond came to prominence in her breakout season of 2016 when, following her first win at the British Championships over the 400 metres distance, she collected a gold medal in the 4 x 400 metres relay at the 2016 European Athletics Championships as part of the Great Britain team, followed by a bronze in the same discipline at the 2016 Summer Olympics.
Georgia Beth Davies is a British competition swimmer who has represented Great Britain in the Olympic Games and European championships, and swam for Wales in the Commonwealth Games. She has won gold in the Commonwealth Games and European Championships. She currently represents Energy Standard in the International Swimming League.
Kineke Alicia Alexander is a Vincentian sprinter who competed in the 400m event at the 2008 Summer Olympics and the 2012 Summer Olympics. She was the flag bearer for Saint Vincent and the Grenadines at the 2008 opening ceremony and the 2012 opening ceremony. She was also the Saint Vincent and the Grenadines flagbearer at the 2014 Commonwealth Games.
The Maldives competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's eighth consecutive appearance at the Summer Olympics. The delegation included two track and field athletes: Hassan Saaid and Afa Ismail, as well as swimmers Ibrahim Nishwan and Aminath Shajan. Both Shajan and Ismail were returning competitors from the 2012 London Olympics, with the former leading the Maldivian squad as the flag bearer in the opening ceremony. The Maldives, however, has yet to win its first ever Olympic medal.
Anderson Peters is a Grenadian javelin thrower and the current world champion in the event. He is a multiple time CARIFTA Games champion at the discipline and in 2016 earned a bronze medal at the 2016 IAAF World U20 Championships in Bydgoszcz, Poland, setting a new Grenadian national record and OECS record at the same time.
Meleni Rodney, OLY is a Grenadian sprinter who specialises in the 400 metres.
Amanda Crawford is an American-born, Grenadian sprinter who specializes in the 400 metres. In 2016, she represented Grenada at the CARIFTA Games and earned a silver medal in the 400m, in the under-18 girls' category. She was also a part of the women's 4X400m Relay team which secured a silver medal at the 2016 OECS Track & Field Championships with teammates Meleni Rodney, Kenisha Pascal and Kanika Beckles.
Halle Michelle Hazzard is a Grenadian sprinter and sister of Grenadian sprinter Payton Hazzard. She made her competitive debut for Grenada at the 2017 CARIFTA Games, where she earned a Silver medal and as well as a Bronze Medal in the 200m and 100m respectively. She then went to Grenada to compete in the 3rd OECS Track And Field Championships. At this meet she was able to secure two Bronze medals. One in the Women 100 Meter Dash OECS with a time of 11.76 seconds and another as part of Grenada's 4 × 100 m relay team which included Chelsea Mitchell, Jonair Thomas and Amanda Crawford. On 14 February Halle broke the Grenadian 60m at the Tiger Paw Invite. She surpassed her UVA record-setting run of 7.31 from the week prior three times during the meet. She ran a time of 7.27 during the prelims before dropping the time in the semifinals with a 7.24 run. She closed the day with a time of 7.30 in the finals to finish fifth in the event. Her time ranks second in the ACC and 13th in the NCAA. Hazzard also captured a career-best time in the 200m dash. Her time of 23.79 ranks second in school history. She further lowered that time to 23.45 seconds in the prelims of the 2021 ACC Indoor Championships and moved to the #1 all time in the event for her school. She was also named as a Qualifier for the 2021 Indoor Championships in the 60m
The following table is an overview of all national records in the 400 metres.
Grenada 
