[1] However, the results within that competition are still valid because all athletes in said race would receive similar assistance, and in field events it is just random circumstance at the moment of the attempt.
[2] Higher average velocity was previously allowed as long as no individual event would exceed +4.0 m/s, but the IAAF removed this rule in 2010.
[5] That mark was surpassed when Usain Bolt set the current world record the following year, 9.58 with a legal +0.9 tailwind.
[6] That mark was also surpassed when Trayvon Bromell set the current world junior record 9.97 with a legal +1.8 wind at an even younger age the following year.
When the women's world record holder Florence Griffith Joyner ran her 10.49 in 1988, the official wind reading was 0.0.
Leroy Burrell ran 200 metres in 19.61 seconds in May 1990 at College Station, Texas, well under the world record at the time (19.72 – Pietro Mennea – Mexico 1979) but with a tail wind of 4.0 m/s.
Also, Michael Johnson ran the 200 metres in 19.70 seconds on 22 June 1996, during a semi-final race at the US Olympic Trials in Atlanta, with a tail wind of 2.7 m/s.
[9] Renaldo Nehemiah ran a would-be 110 metres hurdles world record of 12.91 seconds in June 1979 in Champaign, Illinois with a tail wind of 3.5 m/s.
Roger Kingdom later became the first person to break the 12.90-second-barrier, running in 12.87 seconds in September 1989 at the World Cup in Barcelona with a tail wind of 2.6 m/s.
[19] Dan O'Brien's decathlon result of 8844 points from June 1991 in New York City was better than the world record at the time, but not recognized due to wind assistance.
[23] There is no wind speed rule for road events, but the start and finish points of a course, measured along a theoretical straight line between them, shall not be further apart than 50% of the race distance to be allowed as a record.
In 2024, Mykolas Alekna broke the discus world record in Ramona, Oklahoma, and his throw was reported to have been helped by high winds in the area.