On October 18, 2003, a 27-year-old Julio César González (34-1, 22 KOs) got a shot at the WBO light-heavyweight title held by 35-year-old Polish boxer Dariusz Michalczewski (48-0, 38 KOs).
González came in to the fight on a 7-fight win streak with a 62% KO rate, and was fighting after a gap of 4 months and 12 days. Michalczewski was on a 48-fight win streak with a 79% KO rate, and fighting after a layoff of 6 months and 19 days.
Julio César González defeated Dariusz Michalczewski via split decision and wins the WBO title — in his first world-title fight. González improves his record to 35-1, while Michalczewski adds a loss to his record at 48-1.
On May 30, 1997, a 20-year-old Julio César González (1-0, 0 KOs) and Alex Federov met in the ring for the 2nd time,.
González came in to the fight on a 1-fight win streak with a 0% KO rate, and was fighting after a gap of 1 month and 23 days.
In the rematch, Julio César González stopped Alex Federov via TKO in the 2nd round. González improves his record to 2-0 (1 KO)
On July 28, 2001, a 24-year-old Julio César González (27-0, 17 KOs) got a shot at the undisputed light-heavyweight championship held by 32-year-old Roy Jones Jr. (44-1, 36 KOs).
González came in to the fight on a 27-fight win streak with a 63% KO rate, and was fighting after a gap of 3 months and 20 days. Jones Jr. was on a 10-fight win streak with a 80% KO rate, and fighting after a layoff of 5 months and 4 days.
Roy Jones Jr. defeated Julio César González via unanimous decision and successfully defended his WBA (Super), WBC, and IBF light-heavyweight titles. Jones Jr. improves his record to 45-1, while González adds a loss to his record at 27-1.
On September 29, 2007, Julio César González and Clinton Woods met again in a rematch.
González came in to the fight on a 3-fight win streak with a 56% KO rate, and was fighting after a gap of 10 months and 13 days. Woods was on a 5-fight win streak with a 56% KO rate, and fighting after a layoff of 1 year and 27 days.
Clinton Woods defeated Julio César González via unanimous decision in the rematch and successfully defended his IBF light-heavyweight title. Woods improves his record to 41-3-1, while González adds a loss to his record at 41-4.
On April 27, 2002, a 25-year-old Julio César González (28-1, 18 KOs) and Joseph Kiwanuka met in the ring.
González came in to the fight on a 1-fight win streak with a 62% KO rate, and was fighting after a gap of 2 months and 5 days.
Julio César González stopped Joseph Kiwanuka via TKO in the 7th round. González improves his record to 29-1 (19 KOs)
On February 2, 2001, a 24-year-old Julio César González (25-0, 16 KOs) and Julian Letterlough met in the ring in a light-heavyweight bout.
González came in to the fight on a 25-fight win streak with a 64% KO rate, and was fighting after a gap of 4 months and 10 days.
Julio César González defeated Julian Letterlough via unanimous decision in the 12-round light-heavyweight fight. González improves his record to 26-0
On September 9, 2005, a 29-year-old Julio César González (38-2, 23 KOs) got a shot at the light-heavyweight IBF title held by 33-year-old British boxer Clinton Woods (37-3-1, 24 KOs).
González came in to the fight on a 3-fight win streak with a 57% KO rate, and was fighting after a gap of 4 months and 4 days. Woods was on a 2-fight win streak with a 58% KO rate, and fighting after a layoff of 6 months and 5 days.
Clinton Woods defeated Julio César González via unanimous decision and successfully defended his IBF light-heavyweight title. Woods improves his record to 38-3-1, while González adds a loss to his record at 38-3.
On January 17, 2004, the 27-year-old WBO light-heavyweight world champion, Julio César González (35-1, 22 KOs), faced a 29-year-old Hungarian boxer Zsolt Erdei (18-0, 13 KOs), in a title defense fight.
González came in to the fight on a 8-fight win streak with a 61% KO rate, and was fighting after a gap of 2 months and 30 days. Erdei was on a 18-fight win streak with a 72% KO rate, and fighting after a layoff of 2 months and 2 days.
Zsolt Erdei defeated Julio César González via unanimous decision and wins the WBO title — in his first world-title fight. Erdei improves his record to 19-0, while González adds a loss to his record at 35-2.
On February 22, 2002, a 25-year-old Julio César González (27-1, 17 KOs) and Tyrone Armstead met in the ring.
González came in to the fight on a 1-fight losing streak with a 60% KO rate, and was fighting after a gap of 6 months and 25 days.
Julio César González stopped Tyrone Armstead via TKO in the 2nd round. González improves his record to 28-1 (18 KOs)
On December 3, 1999, a 23-year-old Julio César González (19-0, 10 KOs) and Gary Campbell met in the ring.
González came in to the fight on a 19-fight win streak with a 52% KO rate, and was fighting after a gap of 1 month and 29 days.
Julio César González stopped Gary Campbell via KO in the 2nd round. González improves his record to 20-0 (11 KOs)