The World Athletics Championships are a biennial athletics competition organized by World Athletics. Alongside the Olympic Games, they represent the highest level championships of senior international outdoor athletics competition for track and field athletics globally, including marathon running and race walking. Separate World Championships are held by World Athletics for certain other outdoor events, including cross-country running and half-marathon, as well as indoor and age-group championships.
The 9th World Championships in Athletics, under the auspices of the International Association of Athletics Federations, were held from 23 August to 31 August 2003 in the streets of Paris and the Stade de France in Saint-Denis, Seine-Saint-Denis, France.
The 8th World Championships in Athletics, under the auspices of the International Association of Athletics Federations, were held at Commonwealth Stadium in Edmonton, Alberta, Canada between 3 August and 12 August and was the first time the event had visited North America. The music for the Opening and Closing Ceremonies was composed by Canadian composers Jan Randall and Cassius Khan. The ceremonies also featured a thousand-strong voice choir, and the Edmonton Symphony Orchestra.
The 7th World Championships in Athletics, a World Athletic Championships event held under the auspices of the International Association of Athletics Federations, were held at the Estadio Olímpico de la Cartuja, Seville, Spain, between the August 20 and August 29.
The 6th World Championships in Athletics, under the auspices of the International Amateur Athletic Federation, were held at the Olympic Stadium, Athens, Greece between August 1 and August 10, 1997. In this event participated 1882 athletes from 198 participant nations. Despite several attempts to sabotage,Athens used the successful organization of the World Championships to prove their capacity during the next IOC Session held the following month in Lausanne as a triumph and key event during the final stretch of the process to choose the city who hosted 2004 Summer Olympics. The success of the event showed the Greece abilities and readiness to organize large-scale, international sporting events.
The 5th World Championships in Athletics, under the auspices of the International Association of Athletics Federations, were held at the Ullevi Stadium, Gothenburg, Sweden on 5–13 August 1995.
The 3rd World Championships in Athletics, under the auspices of the International Association of Athletics Federations, were held in the Olympic Stadium in Tokyo, Japan between August 23 and September 1. 1517 athletes from 167 countries participated in the event. Japan hosted again the championship in 2007 in Osaka and Tokyo will host again the event in 2025 in a new venue building at the same place.
The 2nd World Championships in Athletics under the auspices of the International Association of Athletics Federations were held in the Stadio Olimpico in Rome, Italy between August 28 and September 6, 1987.
The 1st World Championships in Athletics were run under the auspices of the International Association of Athletics Federations and were held at the Olympic Stadium in Helsinki, Finland between 7 and 14 August 1983.
The 10th World Championships in Athletics, under the auspices of the International Association of Athletics Federations (IAAF), were held in the Olympic Stadium, Helsinki, Finland, the site of the first IAAF World Championships in 1983. One theme of the 2005 championships was paralympic events, some of which were included as exhibition events. Much of the event was played in extremely heavy rainfall.
The 4 × 400 metres relay or long relay is an athletics track event in which teams consist of four runners who each complete 400 metres or one lap. It is traditionally the final event of a track meet. At top class events, the first leg and the first bend of the second leg are run in lanes. Start lines are thus staggered over a greater distance than in an individual 400 metres race; the runners then typically move to the inside of the track. The slightly longer 4 × 440 yards relay, on an Imperial distance, was a formerly run British Commonwealth and American event, until metrication was completed in the 1970s.
The 11th World Championships in Athletics, under the auspices of the International Association of Athletics Federations (IAAF), were held at Nagai Stadium in Osaka, Japan from 24 August to 2 September 2007. 200 of the IAAF's 212 member federations entered a total of 1,978 athletes, the greatest number of competitors at any World Championships to date. Sarah Brightman, the world's best-selling soprano, performed her single Running at the opening ceremony.
The 4 × 100 metres relay at the 1987 World Championships in Athletics was held at the Stadio Olimpico on September 5 and September 6.
The 4 × 400 metres relay at the 1987 World Championships in Athletics was held at the Stadio Olimpico on September 5 and September 6.
Slobodan Branković is a Serbian former track and field athlete who specialised in the 400 metres. He is currently the general secretary of the Athletics Federation of Serbia.
The 4 × 100 metres relay at the Summer Olympics is the shortest track relay event held at the multi-sport event. The men's relay has been present on the Olympic athletics programme since 1912 and the women's event has been continuously held since the 1928 Olympic Games in Amsterdam. It is the most prestigious 4×100 m relay race at elite level.
The 4 × 400 metres relay at the Summer Olympics is the longest track relay event held at the multi-sport event. The men's relay has been present on the Olympic athletics programme since 1912 and the women's event has been continuously held since the 1972 Olympics. The inaugural and so far the only mixed 4 × 400 metres relay was held at the 2020 Olympics. It is the most prestigious 4×400 m relay race at elite level. At the 1908 Summer Olympics, a precursor to this event was held – the 1600 m medley relay. This event, with two legs of 200 m, one of 400 m, and a final leg of 800 m, was the first track relay in Olympic history.
The 4×100 metres relay at the World Championships in Athletics has been contested by both men and women since the inaugural edition in 1983. It is the second most prestigious title in the discipline after the 4×100 metres relay at the Olympics. The competition format typically has one qualifying round leading to a final between eight teams. As of 2015, nations can qualify for the competition through a top eight finish at the previous IAAF World Relays event, with the remaining teams coming through the more traditional route of ranking highly on time in the seasonal lists. This system was modified due to the postponement of 2023 World Athletics Relays to 2024: therefore, the eight teams directly qualified are those of the 2022 World Championships, in Eugene, completed by eight more 2022-2023 top lists' teams.
The 4 × 400 metres relay at the World Championships in Athletics has been contested by both men and women since the inaugural edition in 1983. The competition features three formats in relation to gender: men, women, and mixed. The 2019 edition added in the mixed competition. The format utilizes one set of heats qualifying the top 8 into a final.
