Juan Luis Barrios Nieves is a Mexican athlete. He is 173 cm tall and weighs 65 kg. He participated at the 2008 Summer Olympics and finished seventh in the men's 5000 metres. He was 14th over 5000 m at the 2007 World Championships in Athletics and came 18th in the 10,000 metres at the 2009 World Championships. He won silver medals in the 5000 m and 1500 metres at the 2007 Pan American Games. He has won three consecutive titles in the 1500 m at the Central American and Caribbean Games, winning in 2002, 2006 and 2010. He also had back-to-back wins in the 5000 m in 2006 and 2010. He has also won gold medals on the track at the Central American and Caribbean Championships. Barrios was the inaugural winner of the NACAC Cross Country Championships in 2005 and repeated the feat the following year, in addition to taking the team gold with Mexico. He made his debut over the marathon distance in March 2011, running at the LALA International Marathon in Torreon, Coahuila, and recorded a time of 2:14:20 hours. 

June 24th, 1983 in Mexico City (Age 40)