What is Jefferson Pérez?
{{Infobox athlete | headercolor = silver | name = Jefferson Pérez | image = Jefferson-Perez.jpg | image_size = 250px | caption = Pérez in action | full_name = Jefferson Leonardo Pérez Quezada | nickname = Jeffi | nationality = | birth_date = {{Birth date and age|1974|07|01|df=y}} | birth_place = [[Cuenca, Ecuador|Cuenca]], [[Azuay Province|Azuay]], Ecuador | death_date = | death_place = | height = 1.67 m | weight = 60 kg | country = {{flagcountry|Ecuador}} | sport = [[Athletics (sport)|Athletics]] | alma mater = University of Azuay | event = [[Racewalking]] | retired = 21 September 2008 (age {{age|1974|07|01|2008|09|21}}) | olympics = [[1996 Summer Olympics]]<br> [[2000 Summer Olympics]]<br> [[2004 Summer Olympics]]<br> [[2008 Summer Olympics]] | medaltemplates = {{MedalSport|Men’s [[Racewalking]]}} {{MedalCountry | {{ECU}} }} {{MedalCompetition|[[Olympic Games]]}} {{MedalGold|[[1996 Summer Olympics|1996 Atlanta]]|[[Athletics at the 1996 Summer Olympics|20 km walk]]}} {{MedalSilver|[[2008 Summer Olympics|2008 Beijing]]|[[Athletics at the 2008 Summer Olympics – Men's 20 kilometres walk|20 km walk]]}} {{MedalCompetition|[[IAAF World Championships in Athletics|World Championships]]}} {{MedalGold|[[2003 World Championships in Athletics|2003 Paris]]|[[2003 World Championships in Athletics – Men's 20 kilometres walk|20 km walk]]}} {{MedalGold|[[2005 World Championships in Athletics|2005 Helsinki]]|[[2005 World Championships in Athletics – Men's 20 kilometres walk|20 km walk]]}} {{MedalGold|[[2007 World Championships in Athletics|2007 Osaka]]|[[2007 World Championships in Athletics – Men's 20 kilometres walk|20 km walk]]}} {{MedalSilver|[[1999 World Championships in Athletics|1999 Seville]]|[[1999 World Championships in Athletics – Men's 20 kilometres walk|20 km walk]]}} {{MedalCompetition|[[Pan American Games]]}} {{MedalGold|[[1995 Pan American Games|1995 Mar del Plata]]|[[Athletics at the 1995 P