| María Fernanda Mackenna | |
| Fullname: | María Fernanda Mackenna Cooper |
| Birth Date: | 2 December 1986 |
| Birth Place: | Santiago, Chile |
| Height: | 1.71 m[1] |
| Weight: | 58 kg |
| Sport: | Athletics |
| Event: | Sprinting |
| Coach: | Eduardo Fuentes |
María Fernanda Mackenna Cooper (born 2 December 1986, in Santiago) is a Chilean sprinter who competes in the 200 and 400 metres. She has won multiple medals at regional revel.
| Representing | ||||||
|---|---|---|---|---|---|---|
| 2001 | South American Junior Championships | Santa Fe, Argentina | 8th | 100 m | 12.91 | |
| 10th (h) | 200 m | 25.99 | ||||
| 4th | 4 × 100 m relay | 47.49 | ||||
| 4th | 4 × 400 m relay | 3:51.05 | ||||
| 2002 | South American Games | Belém, Brazil | 5th | 100 m | 12.33 | |
| 6th | 200 m | 25.21 | ||||
| 3rd | 4 × 100 m relay | 47.11 | ||||
| 4th | 4 × 400 m relay | 3:49.09 | ||||
| South American Junior Championships | Belém, Brazil | 5th | 100 m | 12.33 | ||
| 6th | 200 m | 25.21 | ||||
| 3rd | 4 × 100 m relay | 47.11 | ||||
| 4th | 4 × 400 m relay | 3:49.09 | ||||
| South American Youth Championships | Asunción, Paraguay | 4th | 100 m | 12.63 | ||
| 3rd | 200 m | 25.02 (w) | ||||
| 5th | 4 × 100 m relay | 51.3 | ||||
| 3rd | 4 × 400 m relay | 2:15.83 | ||||
| 2003 | South American Junior Championships | Guayaquil, Ecuador | bgcolor=gold | 1st | 4 × 100 m relay | 46.54 |
| 4th | 4 × 400 m relay | 3:52.37 | ||||
| Pan American Junior Championships | Bridgetown, Barbados | 6th | 4 × 100 m relay | 46.38 | ||
| 2004 | South American U23 Championships | Barquisimeto, Venezuela | bgcolor=silver | 2nd | 200 m | 24.47 |
| bgcolor=silver | 2nd | 4 × 100 m relay | 45.67 | |||
| bgcolor=silver | 2nd | 4 × 400 m relay | 3:48.38 | |||
| Ibero-American Championships | Huelva, Spain | 9th (h) | 200 m | 25.28 | ||
| – | 4 × 100 m relay | DQ | ||||
| 2005 | South American Championships | Cali, Colombia | 6th | 400 m | 55.52 | |
| 3rd | 4 × 100 m relay | 44.77 | ||||
| 3rd | 4 × 400 m relay | 3:40.49 | ||||
| Pan American Junior Championships | Windsor, Canada | 7th | 400 m | 55.13 | ||
| South American Junior Championships | Rosario, Argentina | 4th | 200 m | 24.53 (w) | ||
| 3rd | 400 m | 55.23 | ||||
| 5th | 4 × 100 m relay | 47.97 | ||||
| 4th | 4 × 400 m relay | 3:47.66 | ||||
| 2006 | South American Games / South American U23 Championships | Buenos Aires, Argentina | bgcolor=silver | 2nd | 4 × 100 m relay | 46.63 |
| 4th | 4 × 400 m relay | 3:46.22 | ||||
| 2007 | South American Championships | São Paulo, Brazil | 6th | 200 m | 24.47 | |
| 5th | 400 m | 55.43 | ||||
| 3rd | 4 × 100 m relay | 45.34 | ||||
| 3rd | 4 × 400 m relay | 3:55.13 | ||||
| Pan American Games | Toronto, Canada | 21st (h) | 200 m | 24.97 | ||
| 10th (h) | 4 × 100 m relay | 45.50 | ||||
| 2011 | South American Championships | Buenos Aires, Argentina | 6th | 200 m | 24.56 | |
| 6th | 400 m | 55.80 | ||||
| 3rd | 4 × 100 m relay | 46.42 | ||||
| 3rd | 4 × 400 m relay | 3:49.51 | ||||
| 2012 | Ibero-American Championships | Barquisimeto, Venezuela | 9th (h) | 200 m | 23.91 | |
| 2013 | South American Championships | Cartagena, Colombia | 7th | 200 m | 23.91 | |
| 4th | 4 × 100 m relay | 45.53 | ||||
| Bolivarian Games | Trujillo, Peru | 4th | 400 m | 54.99 | ||
| 4th | 4 × 100 m relay | 45.31 | ||||
| 3rd | 4 × 400 m relay | 3:41.74 | ||||
| 2014 | South American Games | Santiago, Chile | 4th | 200 m | 24.01 | |
| 4th | 400 m | 53.49 | ||||
| bgcolor=silver | 2nd | 4 × 100 m relay | 45.09 | |||
| 3rd | 4 × 400 m relay | 3:37.42 | ||||
| Ibero-American Championships | São Paulo, Brazil | 4th | 400 m | 54.47 | ||
| 2015 | South American Championships | Lima, Peru | 4th | 400 m | 54.96 | |
| 3rd | 4 × 100 m relay | 44.83 | ||||
| 3rd | 4 × 400 m relay | 3:40.56 | ||||
| Pan American Games | Toronto, Canada | 10th (h) | 4 × 100 m relay | 45.38 | ||
| 12th (h) | 4 × 400 m relay | 3:41.35 | ||||
| 2016 | Ibero-American Championships | Rio de Janeiro, Brazil | 7th | 400 m | 54.60 | |
| 3rd | 4 × 400 m relay | 3:36.16 | ||||
| 2017 | South American Championships | Asunción, Paraguay | 11th (h) | 200 m | 24.48 | |
| 10th (h) | 400 m | 56.67 | ||||
| 3rd | 4 × 400 m relay | 3:40.00 | ||||
| Bolivarian Games | Santa Marta, Colombia | 3rd | 400 m | 54.05 | ||
| bgcolor=gold | 1st | 4 × 400 m relay | 3:37.93 | |||
| 2018 | South American Games | Cochabamba, Bolivia | 3rd | 400 m | 53.60 | |
| bgcolor=silver | 2nd | 4 × 400 m relay | 3:33.42 | |||
| Ibero-American Championships | Trujillo, Peru | 4th | 200 m | 24.54 | ||
| 6th | 400 m | 54.52 | ||||
| 5th | 4 × 400 m relay | 3:43.56 | ||||
| 2019 | World Relays | Yokohama, Japan | 6th (B) | 4 × 400 m relay | 3:33.54 | |
| South American Championships | Lima, Peru | 6th | 400 m | 54.27 | ||
| 4th | 4 × 400 m relay | 3:37.35 | ||||
| Pan American Games | Lima, Peru | 7th | 4 × 400 m relay | 3:39.95 | ||
| 2020 | South American Indoor Championships | Cochabamba, Bolivia | bgcolor=silver | 2nd | 200 m | 24.24 |
| bgcolor=silver | 2nd | 400 m | 54.45 | |||
| 2021 | World Relays | Chorzów, Poland | 14th (h) | 4 × 400 m relay | 3:41.28 | |
| South American Championships | Guayaquil, Ecuador | 6th | 400 m | 55.45 | ||
| bgcolor=silver | 2nd | 4 × 400 m relay | 3:34.89 | |||
| 2023 | Pan American Games | Santiago, Chile | 6th | 4 × 400 m relay | 3:37.00 | |
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