On December 6, 1997, a 26-year-old Yori Boy Campas (68-2, 58 KOs) got a shot at the IBF super-welterweight title held by 26-year-old American boxer Raul Marquez (28-0, 20 KOs).
Campas came in to the fight on a 4-fight win streak with a 82% KO rate, and was fighting after a gap of 4 months and 25 days. Márquez was on a 28-fight win streak with a 71% KO rate, and fighting after a layoff of 2 months and 23 days.
Yori Boy Campas stopped the champion via TKO in the 8th round of the 12-round world-title fight, winning the first world title of his career, and is crowned the new IBF super-welterweight champion. Campas improves his record to 69-2 (59 KOs), while Márquez adds a loss to his record at 28-1.
On September 18, 1998, the 27-year-old IBF super-welterweight world champion, Yori Boy Campas (71-2, 61 KOs), faced Larry Barnes, in a title defense fight.
Campas came in to the fight on a 7-fight win streak with a 83% KO rate, and was fighting after a gap of 3 months and 13 days.
Yori Boy Campas made easy work of Larry Barnes, stopping the challenger via TKO in the 3rd. Campas improves his record to 72-2 (62 KOs)
On March 23, 1998, the 26-year-old IBF super-welterweight world champion, Yori Boy Campas (69-2, 59 KOs), faced Anthony Stephens, in a title defense fight.
Campas came in to the fight on a 5-fight win streak with a 83% KO rate, and was fighting after a gap of 3 months and 17 days.
Yori Boy Campas made easy work of Anthony Stephens, stopping the challenger via RTD in the 3rd. Campas improves his record to 70-2 (60 KOs)
On June 5, 1998, the 26-year-old IBF super-welterweight world champion, Yori Boy Campas (70-2, 60 KOs), faced Pedro Ortega, in a title defense fight.
Campas came in to the fight on a 6-fight win streak with a 83% KO rate, and was fighting after a gap of 2 months and 13 days.
Yori Boy Campas stopped Pedro Ortega via TKO in the 11th round of the 12-round world-title fight, and successfully defended his IBF super-welterweight title. Campas improves his record to 71-2 (61 KOs)
On August 7, 1995, a 24-year-old Yori Boy Campas (59-1, 52 KOs) and Genaro Léon met in the ring in a welterweight bout.
Campas came in to the fight on a 3-fight win streak with a 86% KO rate, and was fighting after a gap of 1 month and 19 days.
Yori Boy Campas stopped Genaro Léon via TKO in the 3rd round. Campas improves his record to 60-1 (53 KOs)
On June 17, 2011, a 39-year-old Yori Boy Campas (97-15-1, 76 KOs) and a 22-year-old fellow Mexican boxer Rogelio Medina (25-1, 19 KOs) met in the ring.
Campas came in to the fight on a 5-fight win streak with a 67% KO rate, and was fighting after a gap of 2 months and 2 days. Medina was on a 2-fight win streak with a 73% KO rate, and fighting after a layoff of 1 year and 21 days.
Yori Boy Campas stopped Rogelio Medina via TKO in the 6th round. Campas improves his record to 98-15-1 (77 KOs), while Medina adds a loss to his record at 25-2.
On May 8, 2004, a 32-year-old Yori Boy Campas (81-6, 68 KOs) and Anthony Shuler met in the ring in a super-welterweight bout.
Campas came in to the fight on a 1-fight win streak with a 78% KO rate, and was fighting after a gap of 1 month and 12 days.
Yori Boy Campas stopped Anthony Shuler via TKO in the 1st round. Campas improves his record to 82-6 (69 KOs)
On June 21, 2008, a 36-year-old Yori Boy Campas (91-12, 73 KOs) and Alejandro Garcia met in the ring.
Campas came in to the fight on a 2-fight losing streak with a 70% KO rate, and was fighting after a gap of 2 months and 30 days.
Yori Boy Campas stopped Alejandro Garcia via KO in the 1st round. Campas improves his record to 92-12 (74 KOs)
On December 4, 1993, a 22-year-old Yori Boy Campas (53-0, 47 KOs) and Floyd Williams met in the ring.
Campas came in to the fight on a 53-fight win streak with a 88% KO rate, and was fighting after a gap of 22 days.
Yori Boy Campas stopped Floyd Williams via KO in the 4th round. Campas improves his record to 54-0 (48 KOs)
On December 17, 2010, a 39-year-old Yori Boy Campas (94-15-1, 75 KOs) and Esteban Camou met in the ring for the 2nd time,.
Campas came in to the fight on a 2-fight win streak with a 68% KO rate, and was fighting after a gap of 3 months.
In the rematch, Yori Boy Campas stopped Esteban Camou via TKO in the 5th round. Campas improves his record to 95-15-1 (76 KOs)