Grisel Machado Ruiz (born 25 October 1959) is a retired Cuban athlete who specialised in the 100 metres hurdles.[1] She won multiple medals at regional level. 
Her personal best in the event is 13.18 seconds set in Havana in 1982. 
 International competitions
     | Year | Competition | Venue | Position | Event | Notes | 
    | Representing  Cuba | 
  | 1977 | Central American and Caribbean Championships | Xalapa, Mexico | 1st | 100 m hurdles | 14.30 | 
  | Universiade | Sofia, Bulgaria | 15th (h) | 100 m hurdles | 14.21 | 
  | 4th | 4 × 100 m relay | 44.81 | 
  | 1978 | Central American and Caribbean Games | Medellín, Colombia | 1st | 100 m hurdles | 13.31 | 
  | 1st | 4 × 100 m relay | 44.37 | 
  | 1979 | Pan American Games | San Juan, Puerto Rico | 3rd | 100 m hurdles | 13.60 | 
  | 1981 | Central American and Caribbean Championships | Santo Domingo, Dominican Republic | 1st | 100 m hurdles | 13.72 | 
  | 4th | 400 m hurdles | 62.12 | 
  | 2nd | 4 × 100 m relay | 45.79 | 
  | World Cup | Rome, Italy | 7th | 100 m hurdles | 13.76[a] | 
  | 1982 | Central American and Caribbean Games | Havana, Cuba | 1st | 100 m hurdles | 13.18 | 
  | 3rd | 4 × 100 m relay | 45.85 | 
  | 1983 | Universiade | Edmonton, Canada | 10th (h) | 100 m hurdles | 13.49 | 
  | Central American and Caribbean Championships | Havana, Cuba | 1st | 100 m hurdles | 13.64 | 
  | – | 4 × 100 m relay | DQ | 
  | Pan American Games | Caracas, Venezuela | 4th | 100 m hurdles | 13.41 | 
  | 1984 | Friendship Games | Moscow, Soviet Union | 2nd (B) | 100 m hurdles | 13.64 | 
  | 1985 | Central American and Caribbean Championships | Nassau, Bahamas | 1st | 100 m hurdles | 13.43 (w) | 
  | 1986 | Central American and Caribbean Games | Santiago, Dominican Republic | 2nd | 100 m hurdles | 13.56 | 
   - ^ Representing the Americas 
  References
    | Authority control databases: People |  | 
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