[3] In 2005, Oviedo played for Libertad's first-team where he colleagued with Francisco Arce, Carlos Bonet, Argentine midfielder Pablo Guiñazú, Uruguayan striker Hernan Rodrigo Lopez and young teammates Victor Caceres, Nestor Camacho and Edgar Benítez.
[5] Oviedo shared the 2006 3 de Febrero squad with players as Wilson Mendez, the Uruguayan Raul Salazar and the Argentine Fernando Brandán.
[6] At Tacuary Asunción in 2006, Oviedo shared the team with Japanese defender Riki Kitawaki, Argentine striker Fabián Caballero.
[10] In 2008, Oviedo joined Club Sol de América with Libertad teammate Édgar Benítez, colleaguing in a team with Jose Ortigoza, Miguel Samudio, Argentine defender Emanuel Loeschbor, and Uruguayans Luis Cupla and Leonardo Bordad.
[24] During January 2015, Oviedo departed Cerro Porteño's pre-season training camp in Argentina to return to Paraguay to close his signing with Pachuca.
[26] In March 2015, due to a previous act of indiscipline, he was not taken into account by Argentine coach Leonardo Astrada, and the club evaluated a transfer for him.
[33] Even though he held a contract until December 2016, it was revealed in May of the same year that Oviedo would depart Cerro Porteño at the end of the 2016 Torneo Apertura.
[34] In July 2016, Oviedo and teammate Jonathan Santana both had their contracts terminated by Cerro Porteño due to acts of indiscipline.
[38] In August 2016, Colón de Santa Fé president José Vignatti travelled to Paraguay to concrete the incorporation of Oviedo.
[41] In May 2018, Oviedo was separated from Guaraní's first-squad by coach Fernando Burgo, after being annoyed for being substituted off of the field in a game against General Díaz.
[59] On 2 September 2011, Oviedo debuted for Paraguay in a 2–0 away friendly match against Panama, being substituted onto the field in the 77th minute for Cristian Riveros.
[60] On 11 October 2013, he played in his first FIFA World Cup qualification game in a 1–1 away draw against Venezuela, being substituted onto the field in the 66th minute for Oscar Cardozo.