William Collazo
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| Full name | Williams Collazo Gutiérrez |
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| Born | (1986-08-31) August 31, 1986
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| Height | 1.72 m (5 ft 8 in) |
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| Weight | 68 kg (150 lb) |
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| Country | Cuba |
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| Sport | Athletics |
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| Event | 4 × 400m Relay |
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| Updated on 23 December 2014 |
William Collazo Gutiérrez (born 31 August 1986 in Antilla, Holguín) is a Cuban sprinter who specializes in the 400 metres.
Personal best
- 200 m: 21.04 s (wind: +0.7 m/s) –
La Habana, 23 May 2010
- 400 m: 44.93 s –
Berlin, 19 August 2009
- 400 m (indoor): 46.31 s –
Doha, 13 March 2010
International competitions
| Year | Competition | Venue | Position | Event | Notes |
Representing Cuba |
| 2005 |
ALBA Games |
Havana, Cuba |
4th |
200 m |
21.49 s (0.0 m/s) |
| 1st |
400 m |
47.16 s |
| 1st |
4 × 400 m |
3:08.14 min |
| Central American and Caribbean Championships |
Nassau, Bahamas |
8th |
400 m |
46.58 s |
| 3rd |
4 × 400 m |
3:02.33 min |
| 2006 |
NACAC Under-23 Championships |
Santo Domingo, Dominican Republic |
3rd |
400 m |
45.72 s |
| Central American and Caribbean Games |
Cartagena, Colombia |
7th |
400 m |
46.95 s |
| 6th (h) |
4 × 400 m |
3:08.71 min |
| 2007 |
ALBA Games |
Caracas, Venezuela |
1st |
400 m |
45.68 s |
| 1st |
4 × 400 m |
3:06.84 min |
| Pan American Games |
Rio de Janeiro, Brazil |
4th |
400 m |
45.45 s |
| – (h) |
4 × 400 m |
DQ |
| World Championships |
Osaka, Japan |
19th (sf) |
400 m |
45.54 s |
| 2008 |
Ibero-American Championships |
Iquique, Chile |
1st |
4 × 400 m |
3:03.22 min |
| Central American and Caribbean Championships |
Cali, Colombia |
4th |
400 m |
46.04 s |
| 1st |
4 × 400 m |
3:02.10 min |
| Olympic Games |
Beijing, China |
13th (sf) |
400 m |
45.06 s |
| 10th (h) |
4 × 400 m |
3:02.24 min |
| 2009 |
ALBA Games |
Havana, Cuba |
1st |
400 m |
45.74 s |
| Central American and Caribbean Championships |
Havana, Cuba |
1st |
400 m |
44.96 s |
| 1st |
4 × 400 m |
3:03.26 min |
| World Championships |
Berlin, Germany |
7th (sf) |
400 m |
44.93 s |
| 2010 |
World Indoor Championships |
Doha, Qatar |
2nd |
400 m |
46.31 s |
| Ibero-American Championships |
San Fernando, Spain |
2nd |
400 m |
45.33 s |
| 1st |
4 × 400 m |
3:04.86 min |
| 2011 |
World Championships |
Daegu, South Korea |
21st (sf) |
400 m |
46.13 s |
| Pan American Games |
Guadalajara, Mexico |
4th |
400 m |
45.33 s |
| 1st |
4 × 400 m |
2:59.43 min |
| 2012 |
Ibero-American Championships |
Barquisimeto, Venezuela |
2nd |
400 m |
45.81 s |
| 1st |
4 × 400 m |
3:00.43 min |
| Olympic Games |
London, United Kingdom |
3rd (h)1 |
4 × 400 m |
3:00.55 min |
| 2014 |
World Relays |
Nassau, Bahamas |
5th |
4 × 400 m |
3:00.61 min |
| Central American and Caribbean Games |
Xalapa, Mexico |
1st |
4 × 400 m |
3:00.70 min A |
| 2015 |
IAAF World Relays |
Nassau, Bahamas |
10th |
4 × 400 m |
3:03.73 min |
| NACAC Championships |
San José, Costa Rica |
4th (sf) |
400m |
46.30 s |
| 3rd |
4 × 400 m |
3:01.22 min |
| World Championships |
Beijing, China |
7th |
4 × 400 m |
3:03.05 min |
| 2016 |
Ibero-American Championships |
Rio de Janeiro, Brazil |
7th |
400 m |
45.92 s |
| – |
4 × 400 m |
DQ |
| Olympic Games |
Rio de Janeiro, Brazil |
6th |
4 × 400 m |
2:59.53 min |
| 2017 |
IAAF World Relays |
Nassau, Bahamas |
5th |
4 × 400 m |
3:03.60 min |
| World Championships |
London, United Kingdom |
6th |
4 × 400 m |
3:01.10 min |
1: Did not finish in the final.