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.
Francis Obiorah Obikwelu, GOIH is a retired Nigerian-born Portuguese sprinter, who specialized in 100 metres and 200 metres. He was the 2004 Olympic silver medalist in the 100 metres. In the same race, he set the European record in the event at 9.86 seconds, which stood for nearly 17 years. At club level, he was a professional athlete for Sporting CP.
Uchenna Emedolu is a retired Nigerian athlete who specialised in short-distance sprints, particularly the 100 metres and the 200 metres. In 100 metres his personal best time is 9.97 seconds, achieved at the 2003 All-Africa Games where he finished second. This ranks him ninth in Nigeria, behind Olusoji Fasuba, Divine Oduduru, Seun Ogunkoya, Davidson Ezinwa, Olapade Adeniken, Deji Aliu, Raymond Ekevwo and Francis Obikwelu.
The 4 × 100 metres relay or sprint relay is an athletics track event run in lanes over one lap of the track with four runners completing 100 metres each. The first runners must begin in the same stagger as for the individual 400 m race. Each runner carries a relay baton. Before 2018, the baton had to be passed within a 20 m changeover box, preceded by a 10-metre acceleration zone. With a rule change effective November 1, 2017, that zone was modified to include the acceleration zone as part of the passing zone, making the entire zone 30 metres in length. The outgoing runner cannot touch the baton until it has entered the zone, and the incoming runner cannot touch it after it has left the zone. The zone is usually marked in yellow, frequently using lines, triangles or chevrons. While the rule book specifies the exact positioning of the marks, the colours and style are only "recommended". While most legacy tracks will still have the older markings, the rule change still uses existing marks. Not all governing body jurisdictions have adopted the rule change.
Innocent Asonze is a former sprinter from Nigeria. Together with Francis Obikwelu, Daniel Effiong and Deji Aliu he won a bronze medal in 4 x 100 metres relay at the 1999 World Championships in Athletics, but the team was later disqualified because he failed a doping test in June 1999.
Deji Aliu is a Nigerian sprinter. He won the 100 metres event at the 2003 All-Africa Games. He also took fourth place in the event at the 2002 Commonwealth Games.
Jaysuma Saidy Ndure is a Gambian-Norwegian sprinter. He is of Serer heritage of the noble Ndure family. In 2002, he went to Oslo, aged 18 and settled with his father who has lived in Norway since the 1970s. Having changed nationality from Gambia to Norway in 2006, he holds Norwegian records in the 100 and in the 200 metres, and is the seventh and fourth fastest European of all times on the two distances. He has a bronze medal from the African Championships and several top-three placings in IAAF Golden League meets and the IAAF World Athletics Final.
Olapade Charles Adeniken is a retired Nigerian sprinter who specialized in the 100 and 200 metres, and is the father of Michael Adeniken.
Oludamola Bolanle ("Damola") Osayomi is a Nigerian sprinter who specializes in the 100 metres and 200 metres. She is a four-time gold medallist at the African Championships in Athletics and won an Olympic silver medal with Nigeria in the 4×100 metres relay at the 2008 Beijing Olympics. She also won the 100 and 200 m sprints at the 2007 All-Africa Games.
The Men's 4 × 100 metres relay event at the 1999 World Championships in Athletics was held at the Estadio Olímpico de Sevilla on August 28 and August 29.
Blessing Oghnewresem Okagbare-Otegheri is a former Nigerian track and field athlete who specialized in long jump and sprints. She is an Olympic and World Championships medallist in the long jump and a world medalist in the 200 metres. Okagbare also holds the women's 100 metres Commonwealth Games record at 10.85 seconds. She is currently serving a 10-year ban for breaching multiple World Athletics anti-doping rules. Her ban expires on 30 July 2032.
Arnaldo Luís Isaías Abrantes is a Portuguese track and field sprinter, specialising in the distances of 100 metres and 200 metres. He also competes in the 4×100 metres relay. His father, Arnaldo Abrantes, was also a sprinter.
Joseph Obinna Metu is a Nigerian sprinter who specializes in the 100 metres. His personal best time is 10.11 seconds, achieved in June 2012 in Calabar.
Steve Mullings is a Jamaican former sprint athlete who specialized in the 100 and 200 metres events.
Patrick "Pat" Jarrett is a Jamaican sprinter who specialised in the 100 metres. He represented Jamaica at the 2000 and 2004 Summer Olympics. He was also the 1999 Jamaican 100 m champion and a quarter-finalist at the 1999 World Championships in Athletics.
Oluwakemi "Kemi" Adekoya is a Nigerian-born track and field athlete who competes for Bahrain. She specialises in the 400 metres hurdles and has a personal best of 53.39 seconds – a Bahraini and Asian record. In January 2019, it was reported that Adekoya tested positive for an illegal steroid stanozolol in an out-of-competition test in November 2018 and was provisionally suspended. All of her results achieved after 24 August 2018 were also stripped.
Ejowvokoghene Divine Oduduru is a Nigerian sprinter specializing in the 100-meter and 200-meter dash. He holds personal bests of 9.86 seconds for the 100 m and 19.73 seconds for the 200 m. The latter is a Nigerian national record.
The 100 metres 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 100 m title after the 100 metres at the Olympics. The competition format typically has two or three qualifying rounds leading to a final between eight athletes. Since 2011 a preliminary round has been held, where athletes who have not achieved the qualifying standard time compete to enter the first round proper.
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.
