On November 6, 2004, a 34-year-old Gregorio Vargas (45-8-1, 31 KOs) and Eleazar Contreras Jr met in the ring in a lightweight bout.
Vargas came in to the fight on a 1-fight win streak with a 57% KO rate, and was fighting after a gap of 6 months and 7 days.
Gregorio Vargas lost to Eleazar Contreras Jr via unanimous decision in the 12-round lightweight fight, and adds an loss to his record at 45-9-1.
On December 11, 2003, a 33-year-old Gregorio Vargas (44-7-1, 30 KOs) and Mike Anchondo met in the ring.
Vargas came in to the fight on a 4-fight win streak with a 57% KO rate, and was fighting after a gap of 1 month and 11 days.
Gregorio Vargas lost to Mike Anchondo via unanimous decision in the 10-round fight, and adds an loss to his record at 44-8-1.
On March 18, 2000, a 29-year-old Gregorio Vargas (40-6-1, 28 KOs) got a shot at the super-featherweight WBC title held by 23-year-old American boxer Floyd Mayweather Jr. (22-0, 17 KOs).
Vargas came in to the fight on a 6-fight win streak with a 59% KO rate, and was fighting after a gap of 8 months and 8 days. Mayweather Jr. was on a 22-fight win streak with a 77% KO rate, and fighting after a layoff of 6 months and 7 days.
Floyd Mayweather Jr. defeated Gregorio Vargas via unanimous decision and successfully defended his WBC super-featherweight title. Mayweather Jr. improves his record to 23-0, while Vargas adds a loss to his record at 40-7-1.
On January 13, 1997, a 26-year-old Gregorio Vargas (34-5-1, 24 KOs) and a 25-year-old American boxer Carlos Hernández (22-1-1, 13 KOs) met in the ring.
Vargas came in to the fight on a 5-fight win streak with a 60% KO rate, and was fighting after a gap of 2 months and 16 days. Hernandez was on a 1-fight win streak with a 54% KO rate, and fighting after a layoff of 6 months and 3 days.
Carlos Hernandez defeated Gregorio Vargas via majority decision in the 10-round fight. Hernandez improves his record to 23-1-1, while Vargas adds a loss to his record at 34-6-1.
On April 22, 1994, a 23-year-old Gregorio Vargas (29-4-1, 20 KOs) got a shot at the super-featherweight IBF title held by 29-year-old Puerto Rican boxer John John Molina (34-3, 25 KOs).
Vargas came in to the fight on a 1-fight losing streak with a 58% KO rate, and was fighting after a gap of 4 months and 18 days. Molina was on a 13-fight win streak with a 67% KO rate, and fighting after a layoff of 3 months.
John John Molina defeated Gregorio Vargas via unanimous decision and successfully defended his IBF super-featherweight title. Molina improves his record to 35-3, while Vargas adds a loss to his record at 29-5-1.
On December 4, 1993, the 23-year-old WBC featherweight world champion, Gregorio Vargas (29-3-1, 20 KOs), faced a 26-year-old American boxer Kevin Kelley (36-0, 26 KOs), in a title defense fight.
Vargas came in to the fight on a 11-fight win streak with a 60% KO rate, and was fighting after a gap of 3 months and 27 days. Kelley was on a 36-fight win streak with a 72% KO rate, and fighting after a layoff of 2 months and 23 days.
Kevin Kelley defeated Gregorio Vargas via unanimous decision and wins the WBC title — in his first world-title fight. Kelley improves his record to 37-0, while Vargas adds a loss to his record at 29-4-1.
On May 5, 1990, a 19-year-old Gregorio Vargas (16-2, 11 KOs) and Juan Carlos Salazar met in the ring.
Vargas came in to the fight on a 3-fight win streak with a 61% KO rate, and was fighting after a gap of 1 month and 11 days.
Gregorio Vargas lost to Juan Carlos Salazar via unanimous decision in the 10-round fight, and adds an loss to his record at 16-3.
On August 18, 1989, an 18-year-old Gregorio Vargas (13-1, 10 KOs) and Jaime Fernandez met in the ring.
Vargas came in to the fight on a 2-fight win streak with a 71% KO rate, and was fighting after a gap of 1 month and 10 days.
Gregorio Vargas lost to Jaime Fernandez via points decision in the 10-round fight, and adds an loss to his record at 13-2.
On April 28, 1989, an 18-year-old Gregorio Vargas (11-0, 9 KOs) and Marco Antonio Ramirez met in the ring.
Vargas came in to the fight on a 11-fight win streak with a 81% KO rate, and was fighting after a gap of 1 month and 10 days.
Gregorio Vargas lost to Marco Antonio Ramirez via TKO in the 6th round, and adds an loss to his record at 11-1.