List of world records in athletics in the context of "IAAF"

Donovan Bailey OC OOnt (born December 16, 1967) is a Jamaican-Canadian retired sprinter. He once held the world record for the 100 metres. He recorded a time of 9.84 seconds to become Olympic champion in 1996. He was the first Canadian to legally break the 10-second barrier in the 100 m. Particularly noted for his top speed, Bailey ran 12.10 m/s (43.6 km/h; 27.1 mph) in his 1996 Olympic title run, the fastest ever recorded by a human at the time. He was inducted into Canada's Sports Hall of Fame in 2004 as an individual athlete and in 2008 as part of the 1996 Summer Olympics 4 × 100 relay team. In 2005, he was also inducted into the Ontario Sports Hall of Fame.

Sebastian Newbold Coe, Baron Coe, CH, KBE, Hon FRIBA (born 29 September 1956), often referred to as Seb Coe, is a British sports administrator, former politician and retired track and field athlete. As a middle-distance runner, Coe won four Olympic medals, including 1500 metres gold medals at the Olympic Games in 1980 and 1984. He set nine outdoor and three indoor world records in middle-distance track events – including, in 1979, setting three world records in the space of 41 days – and the world record he set in the 800 metres in 1981 remained unbroken until 1997. Coe's rivalries with fellow Britons Steve Ovett and Steve Cram dominated middle-distance racing for much of the 1980s.

Following Coe's retirement from athletics, he was a Conservative member of parliament from 1992 to 1997 for Falmouth and Camborne in Cornwall, and became a Life Peer on 16 May 2000.

World Athletics (WA), formerly known as the International Amateur Athletic Federation and International Association of Athletics Federations and formerly abbreviated as the IAAF, is the international governing body for the sport of athletics, covering track and field, cross country running, road running, race walking, mountain running, and ultra running. Included in its charge is the standardization of rules and regulations for the sports, certification of athletic facilities, recognition and management of world records, and the organisation and sanctioning of athletics competitions, including the World Athletics Championships. The organisation's president is Sebastian Coe of the United Kingdom, who was elected to the four-year position in 2015 and re-elected in 2019 for a second four-year term, and then again in 2023 for a third four-year term.

World Athletics (WA), formerly known as the International Amateur Athletic Federation and International Association of Athletics Federations and formerly abbreviated as the IAAF, is the international governing body for the sport of athletics, covering track and field, cross country running, road running, race walking, mountain running, and ultra running. Included in its charge is the standardization of rules and regulations for the sports, certification of athletic facilities, recognition and management of world records, and the organisation and sanctioning of athletics competitions, including the World Athletics Championships. The organisation's current president is Sebastian Coe of the United Kingdom, who was elected to the four-year position in 2015, and re-elected twice in 2019 and 2023 for two further four-year terms.

The 400 metres, or 400-meter dash, is a sprint event in track and field competitions. It has been featured in the athletics programme at the Summer Olympics since 1896 for men and since 1964 for women. On a standard outdoor running track, it is one lap around the track. Runners start in staggered positions and race in separate lanes for the entire course. In many countries, athletes previously competed in the 440-yard dash (402.336 m)—which is a quarter of a mile (1,760 yards) and was referred to as the "quarter-mile"—instead of the 400 m (437.445 yards), though this distance is now obsolete.

The current men's world record and Olympic record is held by Wayde van Niekerk of South Africa; his time of 43.03 seconds is the fastest 400 m ever run, in either an open 400 m or a relay split (excluding reaction time). While Michael Johnson holds the fastest 400 m relay split with a time of 42.94, relay splits are typically faster because athletes have a running start and do not need to react to the gun if they are not the leadoff leg. Considering van Niekerk's reaction time of 0.181 seconds in his run of 43.03, van Niekerk covered the 400-metre distance itself in 42.85 seconds, therefore being 0.09 s faster than Johnson's relay split.

The 3000 metres or 3000-metre run is a track running event, also commonly known as the "3K" or "3K run", where 7.5 laps are run around an outdoor 400 m track, or 15 laps around a 200 m indoor track.

It is debated whether the 3000 m should be classified as a middle-distance or long-distance event. In elite-level competition, 3000 m pace is more comparable to the pace found in the longer 5000 metres event, rather than mile pace. The men's world record performance for 3000 m equates to a pace of 58.34 seconds per 400 m, which is closer to the 60.43 seconds for 5000 m than the 55.46 seconds for the mile. However, the 3000 m does require some anaerobic conditioning, and an elite athlete needs to develop a high tolerance to lactic acid, as does the mile runner. Thus, the 3000 m demands a balance of aerobic endurance needed for the 5000 m and lactic acid tolerance needed for the mile.

Paavo Johannes Nurmi (Finnish pronunciation: [ˈpɑːʋo ˈnurmi] ; 13 June 1897 – 2 October 1973) was a Finnish middle-distance and long-distance runner. He was called the "Flying Finn" because he dominated distance running in the 1920s. Nurmi set 22 official world records at distances between 1,500 metres and 20 kilometres, and won nine gold and three silver medals in his 12 events in the Summer Olympic Games. At his peak, Nurmi was undefeated for 121 races at distances from 800 m upwards. Throughout his 14-year career, he remained unbeaten in cross country events and the 10,000 metres.

Born into a working-class family, Nurmi left school at the age of 12 to provide for his family. In 1912, he was inspired by the Olympic feats of Hannes Kolehmainen and began developing a strict training program. Nurmi started to flourish during his military service, setting Finnish records in athletics en route to his international debut at the 1920 Summer Olympics. After winning a silver medal in the 5,000 m, he won gold in the 10,000 m and the cross country events. In 1923, Nurmi became the first runner to hold simultaneous world records in the mile, the 5,000 m and the 10,000 m races, a feat which has never been repeated. He set new world records for the 1,500 m and the 5,000 m with just an hour between the races, and took gold medals in both distances in less than two hours at the 1924 Summer Olympics. Seemingly unaffected by the Paris heat wave, Nurmi won all his races and returned home with five gold medals, although he was frustrated that Finnish officials had refused to enter him for the 10,000 m.

Yelena Gadzhievna Isinbayeva (Russian: Елена Гаджиевна Исинбаева, IPA: [jɪˈlʲɛnə gɐˈdʐɨjɪvnə ɪsʲɪnˈbajɪvə]; born 3 June 1982) is a Russian former pole vaulter. She is twice an Olympic gold medalist (2004 and 2008), three-times a World Champion (2005, 2007 and 2013), the current world record holder in the event, and is widely considered the greatest female pole-vaulter of all time. Isinbayeva was banned from the 2016 Rio Olympics after revelations of an extensive state-sponsored doping programme in Russia, thus dashing her hopes of a grand retirement winning the Olympic gold medal. She retired from athletics in August 2016 after being elected to serve an 8-year term on the IOC's Athletes' Commission.

Isinbayeva has been a major champion on nine occasions (Olympic, World outdoor and indoor champion and European outdoor and indoor champion). She was also the jackpot winner of the IAAF Golden League series in 2007 and 2009. After poor performances at the World Championships in 2009 and 2010, she took a year-long break from the sport.