Shingo Suetsugu is a Japanese sprinter. He is a former Asian record holder in the 200 metres and 4×100 metres relay.
Marc Burns is an athlete from Trinidad and Tobago specializing in the 100 metres and the 4 x 100 metres relay.
Vicente Lenílson de Lima is a Brazilian sprinter specializing in the 100 metres, 200 metres, and the 4×100 metres relay.
Michael Frater O.D is a Jamaican retired sprinter who specialised in the 100 metres event. He won a silver medal at the 2005 World Championships and a gold medal at the 2003 Pan American Games for the event.
Dwight Thomas O.D is a Jamaican sprinter, mainly competing in the 100 metres event and more recently the 110 m hurdles.
Aaron Nigel Armstrong is a track and field sprint athlete who competes internationally for Trinidad and Tobago. He is the 2008 Olympic champion in 4 × 100 metres relay.
Nobuharu Asahara is a former Japanese athlete who specialized in the 100 meters and long jump. He won the 100 m at the Japanese national championship on five occasions in 1996, 1997, 2000, 2001 and 2002, and he took part in the Olympics four times in 1996, 2000, 2004 and 2008. He represented Japan six times at the World Championships in Athletics.
Shinji Takahira is a Japanese sprinter who specialises in the 100 and 200 metres.
Naoki Tsukahara is a Japanese track and field sprinter who specialises in the 100 metres.
Richard "Torpedo" Thompson is a sprinter from Trinidad and Tobago who specializes in the 100 metres. His personal best of 9.82 seconds, set in June 2014, was one of the top ten fastest of all time, and a national record. In the 200 meters, he has the fourth fastest time by a Trinidad and Tobago athlete.
Nesta Carter OD is a Jamaican retired sprinter who specialized in the 100 metres event. Carter was successful as part of the Jamaican 4 x 100 metres relay team, taking gold and setting successive world records at the 2011 World Championships and 2012 London Olympics. He also won a 4 x 100m silver medal at the 2007 World Championship and a gold at the 2015 World Championships. On August 11, 2013, Carter secured an individual 100m World Championship bronze medal in Moscow, behind Justin Gatlin and teammate Usain Bolt. He followed this with another gold in the 4 x 100 metres relay.
Jamaica sent a delegation to compete at the 2008 Summer Olympics, held in Beijing, China from August 8 to August 24, 2008. This was, by far, Jamaica's best showing at the Summer Olympics; it was the nation's largest delegation yet, and its athletes nearly doubled its total gold medal count in addition to breaking the nation's record for number of medals earned in a single games. Jamaica's appearance at Beijing was its fifteenth consecutive appearance and appearance as an independent nation, although it had previously participated in four other games as a British colony and as part of the West Indies Federation. In the 29 events that included Jamaican athletes, there were 26 cases in which a Jamaican athlete or relay progressed to a final round. Usain Bolt won three of Jamaica's six gold medals at Beijing, breaking an Olympic and world record in all three of the events in which he participated. Shelly-Ann Fraser led an unprecedented Jamaican sweep of the medals in the Women's 100 m. Female sprinter Veronica Campbell-Brown carried Jamaica's flag at the ceremonies.
The men's 4 × 100 metre relay event at the 2008 Olympic Games took place on 21 and 22 August at the Beijing National Stadium.
Trinidad and Tobago sent a delegation to compete at the 2008 Summer Olympics in Beijing, China. Its participation in the Beijing games marked its eighteenth Olympic appearance and fifteenth Summer Olympic appearance since its debut at the 1948 Summer Olympics in London, excluding its joint participation with Jamaica and Barbados in 1960 as the West Indies Federation. With 28 athletes, more Trinidadians had competed at the Olympics than in any other single Olympic Games in its history before Beijing. Athletes representing Trinidad and Tobago advanced past the preliminary or qualification rounds in twelve events and reached the final rounds in four of those events. Of those four events, silver medals were won in the men's 100 meters and in the men's 4x100 meters relay. The latter was upgraded to gold due to one member of the quartet that crossed the line first, Nesta Carter, testing positive for a banned substance, resulting in their disqualification. The nation's flag bearer at the opening ceremony that year was swimmer and Athens medalist George Bovell.
José Carlos Gomes Moreira is a Brazilian sprinter who specializes in the 100 metres. His personal best time is 10.15 seconds, achieved in May 2009 in São Paulo.
Keston Bledman, HBM is a track and field sprint athlete, who competes internationally for Trinidad and Tobago.
Emmanuel Earl Callender is a track and field sprint athlete, who competes internationally for Trinidad and Tobago.
Bruno Lins Tenório de Barros is a Brazilian sprinter who specializes in the 200 metres.
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 men's 4 × 100 metres relay competition at the 2016 Summer Olympics in Rio de Janeiro, Brazil was held at the Estádio Olímpico Nilton Santos on 18–19 August.
Brazil 
