The triathlon events at the 2012 Summer Olympics were held in Hyde Park in London, United Kingdom, with the women's triathlon held on 4 August and the men's on 7 August.
 110 triathletes from 39 countries competed with 55 men and 55 women competing.
 The races were held over the "international distance" (also called "Olympic distance") and consisted of 1.5 km swimming, 43 km road cycling, and 10 km road running.
The women's triathlon was one of the triathlon events at the 2012 Summer Olympics in London, United Kingdom.
 It took place on 4 August 2012, featuring 55 women from 31 countries.
 It was the fourth appearance of an Olympic women's triathlon event since the first at the 2000 Olympics in Sydney, Australia.
 The race was around Hyde Park, a 1.42 km park in central London.
 The race was held over the "international distance" (also called "Olympic distance") and consisted of 1.5 km swimming, 43 km road cycling, and 10 km road running.
Louis Tewanima (1888 – January 18, 1969), also spelled Lewis Tewanima, was an American two-time Olympic distance runner and silver medalist in the 10,000 meter run in 1912.
 He was a Hopi Indian and ran for the Carlisle Indian School where he was a teammate of Jim Thorpe.
 His silver medal in 1912 remained the best U.S. achievement in this event until another Native American, Billy Mills, won the gold medal in 1964.
 Tewanima also competed at the 1908 Olympics, where he finished in ninth place in the marathon.
The men's triathlon was one of the triathlon events at the 2012 Summer Olympics in London, United Kingdom.
 It took place on 7 August 2012, featuring 55 men from 32 countries.
 It was the fourth appearance of an Olympic men's triathlon event since the first at the 2000 Olympics in Sydney.
 The race was around Hyde Park, a 1.42 km park in central London.
 The race was held over the "international distance" (also called "Olympic distance") and consisted of 1.5 km swimming, 43 km road cycling, and 10 km road running.
Melody Fairchild (born as the twin to Germaine on September 10, 1973 in Boulder, Colorado) is an American long distance runner.
 She is primarily known for an exceptional high school career.
 She has been called the "Best American High School distance runner of all time."
 In 1991, she set the American Junior and National High School record in the indoor 3,000 meters.
Matthew Centrowitz (born January 28, 1955) is a two-time Olympic distance runner, a four-time United States champion, a collegiate All-American, a nationally renowned high school athlete, and a collegiate cross country and track coach.
The Ōfuna Camp (大船収容所 , Ōbune shūyōsho ) was an Imperial Japanese Navy installation located in Kamakura, outside Yokohama, Japan during World War II, where high-value enlisted and officers, particularly pilots and submariner prisoners of war were interrogated and incarcerated by Japanese naval intelligence Richard O'Kane, Louis Zamperini and Gregory Boyington were among the prisoners held at Ōfuna.
Ryan Shay (May 4, 1979 – November 3, 2007) was an American professional long-distance runner.
 He was born in Ypsilanti, Michigan, and attended the University of Notre Dame.
 He was married to Alicia Craig, also an American distance runner.
 Shay is survived by his wife Alicia, parents Joe and Susan, and his seven siblings: Jodie, Casey, Sarah, Amie, and younger brothers Nate (who also was a distance runner at Notre Dame), Elliott and Stephan.
Edward Cheserek (born 2 February 1994) is a professional runner for Skechers.
 Edward was a 17 time NCAA champion collegiate distance runner for the University of Oregon.
 Cheserek was the most highly recruited high school distance runner in the nation out of Saint Benedict's Preparatory School in New Jersey where he was named the Gatorade 2012-2013 National Cross Country Runner of the Year.
 In 2013, Cheserek became the first freshman in Oregon history to win the NCAA National Cross Country Championships.
 After repeating as NCAA cross country champion his sophomore and junior years, on November 19, 2016, Cheserek failed in his attempt to become the first collegiate runner to claim 4 NCAA Division I national titles in cross country, coming in third behind Patrick Tiernan of Villanova and Justyn Knight of Syracuse.
 In total, Cheserek has 17 NCAA National Titles.
Louis Silvie "Louie" Zamperini (January 26, 1917 – July 2, 2014) was a US prisoner of war survivor in World War II, a Christian evangelist and an Olympic distance runner.

Question: Which Olympic distance runner was held at the The Ōfuna Camp ?
Answer: Louis Zamperini