Thailand competed at the 1976 Summer Olympics in Montreal, Quebec, Canada. 42 competitors, 39 men and 3 women, took part in 33 events in 11 sports.
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.
Hungary competed at the 1988 Summer Olympics in Seoul, South Korea. The nation returned after the Soviet bloc boycott of the 1984 Summer Olympics. 188 competitors, 152 men and 36 women, took part in 135 events in 20 sports.
Jamaica competed at the 1996 Summer Olympics in Atlanta, United States.
Thailand competed at the 1992 Summer Olympics in Barcelona, Spain.
The 1972 Summer Olympics were held in Munich, West Germany, 29 events in swimming were contested. There was a total of 532 participants from 52 countries competing.
The swimming competitions at the 1968 Summer Olympics in Mexico City took place from 17 to 26 October at the Alberca Olímpica Francisco Márquez. Swimming featured a record total of 29 events. There was a total of 468 participants from 51 countries competing. The United States dominated the competition, winning 52 of 87 possible medals. 15-year-old American phenom Debbie Meyer from Maryland won three gold medals.
At the 1964 Summer Olympics, eighteen swimming events were contested, ten for men and eight for women. There were a total of 405 participants from 42 countries competing. For the first time, the 4 × 100 metres freestyle relay for men and the 400 metres individual medley for both men and women were contested. Olympic records were broken in all events and the world record was broken in ten events. This competition also marked the debut of electronic touchpads for timing.
Emily Susan Silver is an American competitive swimmer, Olympic medalist, and swim coach. She was a member of the silver-medal-winning U.S. team of the 4×100 metre freestyle relay at the 2008 Summer Olympics. She competed alongside fellow American swimmers Natalie Coughlin, Lacey Nymeyer and Kara Lynn Joyce. Silver overcame a broken hand suffered in the U.S. Olympic Trials, returning after a few weeks to compete at the 2008 Olympic Games.
The 14th Pan American Games were held in Santo Domingo, Dominican Republic from August 1 to August 17, 2003. Jamaica came in tenth place in the final medals table, a drop in placing from the ninth spot in Winnipeg (1999) but showing a significant increase in the number of gold medals won.
The swimming competitions at the 2012 Summer Olympics in London took place from 28 July to 4 August at the Aquatics Centre. The open-water competition took place from 9 to 10 August in Hyde Park.
Wassana Winatho, also known as Amornrat Winatho and Vassanee Vinatho, is a Thai track and field athlete who specialises in the heptathlon and the 400 metres hurdles. She represented Thailand at the 2008 Summer Olympics and competed at five consecutive editions of the Asian Games.
Wachara Sondee is a Thai track and field athlete who competes in sprinting events. He primarily competes in the 100 metres and 60 metres and is the Thai national record holder for the shorter distance with his best of 6.65 seconds.
The women's 4 × 100 metres relay competition at the 2012 Olympic Games in London took place on 9–10 August at the Olympic Stadium. The victorious United States team broke the world record by over half a second. The previous record had been set 27 years previously by East Germany. The Jamaican team, 6 metres back, missed the previous world record by 0.04, but set a new national record. Another 7 metres back, Ukraine took the bronze, also setting a new national record.
At the 2001 Southeast Asian Games, the athletics events were held in Kuala Lumpur, Malaysia. A total of 46 events were contested, of which 24 by male and 22 by female athletes. The track and field events were hosted at the National Stadium, Bukit Jalil, the marathons were held around Merdeka Square, and the racewalking events took place at Titiwangsa Lake Gardens.
The swimming events of the 15th FINA World Aquatics Championships were held July 28 – August 4, 2013, in Barcelona, Spain. The competition was held in a long course pool inside the Palau Sant Jordi. It featured 40 LCM events, split evenly between males and females. Swimming was one of the five aquatic disciplines at the championships.
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.
Emma Jennifer McKeon, is an Australian competitive swimmer. She is a seven-time world record holder, three current and four former, in relays. Her total career haul of 11 Olympic medals following the 2020 Olympic Games made her Australia's most decorated Olympian and included one gold medal from the 2016 Summer Olympics in Rio de Janeiro and four gold medals from the 2020 Summer Olympics in Tokyo. With four gold and three bronze medals she was the most decorated athlete across all sports at the 2020 Summer Olympics, and tied for the most medals won by a woman in a single Olympic Games. She has also won 17 medals, including four gold medals, at the World Aquatics Championships; and a record 20 medals, including 14 gold, at the Commonwealth Games.
Swimming competitions at the 2015 Southeast Asian Games was held at the OCBC Aquatic Centre in the Singapore Sports Hub in Kallang, Singapore from 6 to 11 June 2015. Built only a year earlier, the venue is hosting the Southeast Asian Games for the first time. It was used to host the second Southeast Asian Swimming Championships in 2014 as a test bed for the organisers, with the 2015 Southeast Asian Games volunteers hired to also volunteer in the 2014 Swimming Championships to help in the familiarisation of the new venue.
