Sir John George Walker, is a former middle-distance runner from New Zealand who won the gold medal in the men's 1500 m event at the 1976 Olympics. He was also the first person to run the mile in under 3:50. In more recent years, Walker has been active in local government, as an Auckland Councillor and representing the Manurewa-Papakura ward.
Jarmila Kratochvílová is a Czechoslovak former track and field athlete. She won the 400 metres and 800 metres at the 1983 World Championships, setting a world record in the 400 m.
Bayron Efrén Piedra Avilés is an Ecuadorian middle distance and long-distance runner.
Nijel Carlos Amilfitano Amos is a Botswana middle-distance runner who competes in the 800 metres. He won the silver medal at the 2012 London Olympics, which was Botswana's first ever Olympic medal. Amos claimed gold medals at the 2014 Commonwealth Games and 2015 All-Africa Games. At the African Championships in Athletics, he took golds in 2014, 2016 and 2018.
Francine Niyonsaba is a Burundian runner who specialized in the 800 metres and shifted to longer distances in 2019. She was the 2016 Rio Olympics silver medalist in the women's 800 metres. Her silver medal was the first Olympic medal for Burundi since 1996. Niyonsaba won a silver in the event at the 2017 World Championships.
Armando Souza Negreiros is a freestyle swimmer from Brazil.
Erik Sowinski is an American middle-distance runner. He competed in the 800 metres event at the 2014 IAAF World Indoor Championships and 2015 World Championships. He holds the former American indoor record in the 600 meters.
Federico Bruno is an Argentine middle- and long-distance runner. He is 1.85 m and weighs 66 kilograms (146 lb). He was the winner of the 1500 metres at the 2014 South American Games and is a three-time medallist over the distance at the South American Championships in Athletics.
Andreas Kramer is a Swedish middle-distance runner specialising in the 800 metres. He won the silver medal at the 2018 European Championships. With the performance of 1:49.62 he is the current European junior indoor record holder.
Donavan Brazier is an American middle-distance runner. He holds the American junior record and American record in men's 800 meters and won the gold medal at the 2019 World Championships.
Jack Alan McLoughlin is a retired Australian swimmer. The avid gamer competed in the men's 1500 metre freestyle event at the 2016 Summer Olympics. At the 2018 Commonwealth Games McLoughlin won a gold medal in the same event and silver in the 400 metre freestyle. In the Autumn of 2019, he was a member of the inaugural International Swimming League swimming for the New York Breakers, who competed in the Americas Division.
Nagmeldin "Peter" Bol is an Australian middle-distance runner who competes in the 800 metres. He represented Australia at the 2016 Rio Olympics, placed fourth at the 2020 Tokyo Olympics and won the silver medal at the 2022 Commonwealth Games.
Simoncito Silvera is a Venezuelan former track and field athlete who specialised in the 800 metres. He holds a personal best of 1:47.26 minutes for the distance. He is a four-time medallist at the South American Championships in Athletics, including 800 m bronze medals in 2001 and 2003. He won five national titles over 800 m from 1999 to 2005. He was a double bronze medallist at the 2004 Ibero-American Championships in Athletics.
Guilherme Pereira da Costa is a Brazilian swimmer. He is the 400m freestyle bronze medalist at the 2022 World Championships. At the Pan American Games, he was champion of the 400, 800 and 1500 metre freestyle. He is also currently the South American record holder in the 400, 800, and 1500 metre freestyle.
Michał Rozmys is a Polish middle-distance runner. He represented his country in the 800 metres at the 2017 World Championships. In addition, he won a bronze medal in the 1500 metres at the 2017 European U23 Championships and a gold at the 2019 Summer Universiade.
Isaiah Harris is an American middle-distance runner. He competed in the men's 800 metres at the 2017 World Championships in Athletics.
Marius Probst is a German middle-distance runner specialising in the 1500 metres. He won a gold medal at the 2017 European U23 Championships. Additionally, he finished sixth at the 2019 European Indoor Championships.
The 2019 Prefontaine Classic was the 45th edition of the annual outdoor track and field meeting in Palo Alto, California, United States. Held on Sunday June 30, 2019, at Cobb Track and Angell Field, it was the seventh leg of the 2019 IAAF Diamond League – the highest-level international track and field circuit. The meet took place away from the regular venue at Hayward Field in Eugene, Oregon, as the location was under renovation in preparation for the 2021 World Athletics Championships.
Tshepo Tshite is a South African middle-distance runner specialising in the 800 metres. He represented his country at the 2019 World Championships reaching the semifinals.
Fernando Daniel Martínez is a Mexican distance runner who competes over distances from 800 metres to the 10K run. He has won five national titles at the Mexican Athletics Championships, three at 1500 metres and two at 5000 metres. Martínez was the gold medallist over 5000 m at the 2019 Pan American Games and the 1500 m winner at the 2018 Central American and Caribbean Games.
Colombia 
