Vicente Lenílson de Lima is a Brazilian sprinter specializing in the 100 metres, 200 metres, and the 4×100 metres relay.
Adhemar Ferreira da Silva was a Brazilian triple jumper. He won two Olympic gold medals and set four world records, the last being 16.56 metres in 1955 Pan American Games. In his early career he also competed in the long jump, placing fourth at the 1951 Pan American Games. He broke world records in triple jump on five occasions during his illustrious career. To date, he remains the only track and field athlete from South America to have won two Olympic gold medals.
Tonga participated in the 2012 Summer Olympics in London, United Kingdom, which were held from 27 July to 12 August 2012. The country's participation in London marked its eighth appearance in the Summer Olympics since its debut at the 1984 Summer Olympics. The delegation included three competitors: two in athletics, Joseph Andy Lui and ʻAna Poʻuhila, along with one short distance swimmer Amini Fonua. The latter entry was Tonga's first appearance in Olympic swimming competition. Lui and Fonua qualified through wildcard places while Po'uhila made the games by meeting qualification standards. Fonua was selected as the flag bearer for the opening ceremony while Lui held it at the closing ceremony. Lui and Fonua failed to progress farther than the preliminary round of their respective events while Po'uhila finished 29th in the heat stage of the women's shot put contest.
The African island nation of São Tomé and Príncipe competed at the 2012 Summer Olympics in London, held from 27 July to 12 August 2012. This was the nation's fifth appearance at the Olympics since its debut in 1996. Two track and field athletes, Christopher Lima da Costa and Lecabela Quaresma were selected to the team by wildcard places, without having qualified at any sporting event. Quaresma was selected as flag bearer for the opening and closing ceremonies. Neither of the two athletes progressed beyond the first round of their respective events.
Diego Armando Palomeque Echavarría is a Colombian sprinter.
Gloria Hooper is an Italian sprinter who won a silver medal at the 2018 Mediterranean Games. She won seven times the national championships. She competed at the 2020 Summer Olympics, in 200 m.
Sibusiso Bruno Matsenjwa is a sprinter from Eswatini. He competed in the 200 metres at the 2012 and 2016 Olympics, but failed to reach the finals. He broke the national record on both occasions and served as the flag bearer for Eswatini during the opening ceremony in 2016. Matsenjwa holds national records over 100–400 m distances. He represented his country at three outdoor and three indoor world championships. Sibusiso also competed at the 2018 Gold Coast Commonwealth Games.
Aldemir Gomes da Silva Junior is a Brazilian sprinter.
Augusto Dutra da Silva de Oliveira is a Brazilian track and field athlete who competes in the pole vault. He has personal bests of 5.82 metres (outdoor) and 5.71 m (indoors).
Altobeli Santos da Silva is a Brazilian distance runner. He finished ninth in the 3000 m steeplechase at the 2016 Summer Olympics. In 2017, he competed in the men's 3000 metres steeplechase at the 2017 World Athletics Championships held in London, United Kingdom. He competed at the 2020 Summer Olympics.
Gabriel da Silva Santos is a Brazilian swimmer. He competed in the men's 4 × 100 metre freestyle relay event at the 2016 Summer Olympics, finishing 5th.
Jorge Henrique da Costa Vides is a Brazilian track and field sprinter who competes in the 100 metres and 200 metres. He represented his country at the 2016 Summer Olympics. He holds a 200 m personal best of 20.34 seconds.
Lucas da Silva Carvalho is a Brazilian sprinter specialising in the 400 metres. He represented his country at the 2017 World Championships without qualifying for the semifinals. He was also an unused reserve runner for the Brazilian 4 × 400 metres relay at the 2016 Summer Olympics. He competed at the 2020 Summer Olympics.
Paulo André Camilo de Oliveira is a Brazilian sprinter. In the 100 metres, he was a silver medalist at the 2019 Pan American Games, and a semifinalist in the World Athletics Championships of the same year. He also won the 4 × 100 metres relay at the 2019 World Relays.
Pedro Henrique Silva Spajari is a Brazilian swimmer.
Derick de Souza da Silva is a Brazilian track and field athlete who specializes in sprint. Representing Brazil at the 2019 World Athletics Championships, he was part of Brazil's team that qualified to the final in men's 4 × 100 metres relay. He competed at the 2020 Summer Olympics.
Felipe Bardi dos Santos is a Brazilian track and field sprinter.
Chayenne Pereira da Silva is a Brazilian athlete specialising in the 400 metres hurdles. She won a bronze medal at the 2021 South American Championships. She competed at the 2020 Summer Olympics.
Carlos Andres San Martín is a Colombian track and field athlete who competes as a steeplechaser.
Bolivia 
