Attack Boxer Juarez, who calls himself to Rocky Marciano Rocky, 1997 took part in the World Championships in Budapest, but was eliminated early on. In the years 1998 and 1999 he was American featherweight champion. In 1999 he won in his hometown of Houston at the age of 19 years, the World Cup. In the final he beat Tulkunbay Turgunov, Uzbekistan ( 13:2 ).
For his participation in the 2000 Olympics in Sydney he beat the German vice champion Falk huste and defending champion Somluck Kamsing but lost the final disputed the Kazakhs Beksat Sattarchanow who was warned several times not to hold, but was never punished, and won silver. His record is 145-17.
He turned professional in 2001 and won his first 23 fights, but in 2004 only disputed against the unbeaten Zahir Raheem, also a former successful amateur. Among them was a knockout victory in the 10th round against Antonio Diaz, who was named by The Ring for KO of the Year 2003. When WBC titlist Chi In -jin 2005 canceled his fight against him, he was placed against Humberto Soto and lost the fight for an interim title surprising.
A higher weight class, super featherweight, he could challenge 2006 WBC titlist Marco Antonio Barrera. However, the rematch clear he lost the first fight only just by split decision ( 114:115 115:113; ; 115:114 ).
After he won his next two fights, he got in November 2007 highlighted the opportunity for the world championship title of the WBC to fight. This time was called the opponent Juan Manuel Márquez. He lost that fight, however, clearly on points.
His next fight he could win again, however, so that he got the chance in February 2009 to fight against the title holder of the WBA featherweight, the Indonesian Chris John. This fight was held in his hometown of Houston and ended with a controversial, flattering Juarez Draws: All three judges scored this fight 114:114. Seven months later, there was a renewed encounter between the two rivals. This time, however Juarez clearly lost on points.
On 3 April 2010 he was up against Jason Litzau in the ring. This time it was for the title of North American Regional Association NABF. The struggle had in the seventh round due to an injury of his opponent, which he had contracted at an accidental head butt, stopped prematurely. Rocky Juarez was at this time in all the three judges the rear and therefore lost that fight.
There following 2011 and 2012 three more defeats against Alejandro Sanabria, Vicente Escobedo and Andrew Cancio before Juarez in 2012 at a time could win a fight for the first time after a series of six defeats again. He beat Antonio Escalante by technical knockout in the eighth round.