|Born||Rio de Janeiro, Brazil|
|Rank||3rd Degree Black Belt in Brazilian Jiu-Jitsu|
|1996 Rio de Janeiro, Brazil||(Blue)|
|1997 Rio de Janeiro, Brazil||(Blue)|
|1998 Rio de Janeiro, Brazil||(Purple)|
|1999 Rio de Janeiro, Brazil||(Brown)|
|2000 Rio de Janeiro, Brazil||(Brown)|
|2001 Rio de Janeiro, Brazil||64kg (Black)|
|Pan American Championship|
|2002 California, USA||-64kg|
Ricardo Alcantara Vieira commonly known as Rico Vieira or Ricardinho is a Brazilian grappler, a Brazilian Jiu-Jitsu Instructor, and Competitor. He was born on the 9th of January 1979. He is one of the Viera brothers (Léo and Leandro), who lead of and fight for Checkmat.
Ricardo first stepped on a jiu jitsu mat at the age of 5, with the legendary Romero Cavalcanti as his coach. His aptitude for BJJ shone through right from the get go, with multiple trophies won in the junior leagues, including the World Jiu-Jitsu Championship a competition he won in every belt division he competed, from Blue Belt to Black Belt. He won the IBJJF World Championship as a black belt in 2001.
CheckMat Jiu-Jitsu Team
One of the most successful teams in contemporary Brazilian Jiu-Jitsu, CheckMat's worldwide headquarters is in Signal Hill, California. CheckMat was established in 2008 by Leo and his brothers. Since its creation, Checkmat has become one of the top teams in Brazilian Jiu-Jitsu. Team CheckMat is the 2008 and 2009 NoGi World Champion Team. Team Checkmat also came in first for the Brazilian Nationals (Gi) 2010 and Brazilian Nationals (No-Gi) 2010.
- "IBJJF black belt results".retrieved 20 June 2013
- "Archived copy". Archived from the original on March 11, 2012. Retrieved March 29, 2012.CS1 maint: archived copy as title (link)
- Carlos Eduardo Ozório. "No-Gi Brazilian Nationals decisive day".
- Carlos Eduardo Ozório. "Brazilian team champion issues provocation: "The dream of the grand slam is over"". Archived from the original on 2012-03-03.
- Official Vieira Bros Web Site
- Fight Zone Stockholm Website
- Fight Zone USA Website
- Fight Zone Malaysia Website
- CheckMat Website
- International Brazilian Jiu-Jitsu Federation Website
- Impact MMA (Checkmat Singapore) website
- BJJ Heroes