Career
He is from Liaoning. At the Asian Games 2006 the southpaw was upset in the first round. At the 2007 world championships he reached the quarter finals where he lost to Joe Murray. In the 2008 Olympics, Gu was able to avenge his defeat to Murray by beating him convincingly.
In 2009 he again reached the quarterfinal at the world championships, losing to Irish boxer John Nevin.
2007 (as a bantamweight)
Defeated Naoto Uebayashi (Japan) RSCO 3
Defeated Huseyin Dundar (Turkey) 24-16
Defeated Mirzhan Rakhimzhanov (Kazakhstan) 25-8
Lost to Joe Murray (England) 11-14 (quarterfinal)
2009 (as a bantamweight)
Defeated Claudio Marrero Guzman (Dominican Republic) 10-5
Defeated Veaceslav Gojan (Moldova) 13-2
Defeated McJoe Arroyo (Puerto Rico) 10-3
Lost to John Nevin (Ireland) 5-7 (quarterfinal)
Olympic games results
= 2008 (as a bantamweight) Defeated Joe Murray (Great Britain) 17-7
Lost to Veaceslav Gojan (Moldova) 6-13
Controversies
China"s Gu Yu caused an upset in the Olympic boxing tournament on Tuesday by defeating Britain"s Joe Murray in the bantamweight category. Murray came into the competition as the world bronze medalist in the 54 kg division.
Afterwards, Murray said making the weight limit had been a problem. Edwards, Murray"s Coach, agreed with his fighter.
"The judges took it away from him.
I thought they were very generous to the Chinese. You expect a slight bias but you come to the Olympic Games and expect a level playing field"
There are five judges for Olympic bouts, none of whom were British or Chinese for Murray"s fight. Points are recorded when at least three simultaneously press their buttons to record a hit but the reactions from the crowd can influence them.
He didn"t box the best I have seen him box but scoring makes a difference to the tactics and those had to be changed because of the scoring.
The Ukrainians have already protested about the judging when one of their fighters lost to a Chinese," said Edwards.