Sérgio Miguel Garcia Vieira (born 20 February 1976) is a Portuguese race walker. His twin brother, João Vieira, is also a race walker.[1] 
 Achievements
     | Year | Competition | Venue | Position | Event | Notes | 
    | Representing .svg.png) Portugal | 
  | 1994 | World Junior Championships | Lisbon, Portugal | 22nd | 10,000 m | 43:50.07 | 
  | 1997 | World Race Walking Cup | Poděbrady, Czech Republic | 26th | 20 km | 1:20:58 | 
  | European U23 Championships | Turku, Finland | — | 20 km | DNF | 
  | 1999 | World Race Walking Cup | Mézidon-Canon, France | 41st | 20 km | 1:28:08 | 
  | 2006 | World Race Walking Cup | A Coruña, Spain | 45th | 20 km | 1:26:22 | 
  | 2007 | World Championships | Osaka, Japan | — | 20 km | DNF | 
  | 2008 | World Race Walking Cup | Cheboksary, Russia | 18th | 20 km | 1:21:25 | 
  | Olympic Games | Beijing, China | 45th | 20 km | 1:29:51 | 
  | 2009 | European Race Walking Cup | Metz, France | — | 20 km | DNF | 
  | World Championships | Berlin, Germany | 27th | 20 km | 1:24:32 | 
  | 2010 | European Championships | Barcelona, Spain | 20th | 20 km | 1:27:07 | 
  | World Race Walking Cup | Chihuahua, Mexico | 25th | 20 km | 1:27:25 | 
  | 2011 | European Race Walking Cup | Olhão, Portugal | — | 20 km | DNF | 
  | 2012 | World Race Walking Cup | Saransk, Russia | — | 20 km | DNF | 
  | 2013 | European Race Walking Cup | Dudince, Slovakia | 29th | 20 km | 1:27:14 | 
  | World Championships | Moscow, Russia | 40th | 20 km | 1:28:34 | 
  | 2014 | World Race Walking Cup | Taicang, China | 60th | 20 km | 1:24:13 | 
  | 2015 | European Race Walking Cup | Murcia, Spain | — | 20 km | DNF | 
  | World Championships | Beijing, China | — | 20 km | DNF | 
 References
  External links
  | Authority control databases: People |  | 
|---|