On April 22, 2005, a 32-year-old Derrick Gainer (39-6-1, 24 KOs) got a shot at the featherweight WBA (Regular) title held by 25-year-old Indonesian boxer Chris John (34-0-1, 19 KOs).
Gainer came in to the fight on a 1-fight losing streak with a 52% KO rate, and was fighting after a gap of 1 year, 5 months, and 21 days. John was on a 0-fight win streak with a 54% KO rate, and fighting after a layoff of 4 months and 19 days.
Chris John defeated Derrick Gainer via unanimous decision and successfully defended his WBA featherweight title. John improves his record to 35-0-1, while Gainer adds a loss to his record at 39-7-1.
On November 1, 2003, the 31-year-old WBA featherweight champion, Derrick Gainer (39-5-1, 24 KOs), and the 30-year-old IBF featherweight champion Juan Manuel Márquez (41-2, 33 KOs) met in a title-unification fight.
Gainer came in to the fight on a 1-fight win streak with a 53% KO rate, and was fighting after a gap of 6 months and 20 days. Márquez was on a 12-fight win streak with a 76% KO rate, and fighting after a layoff of 2 months and 16 days.
Juan Manuel Márquez defeated Derrick Gainer via technical decision and unifies the WBA and IBF featherweight titles. Márquez improves his record to 42-2, while Gainer adds a loss to his record at 39-6-1.
On March 18, 2000, a 27-year-old Derrick Gainer (33-4, 21 KOs) got a shot at the super-featherweight IBF title held by 22-year-old Diego Corrales (30-0, 24 KOs).
Gainer came in to the fight on a 16-fight win streak with a 56% KO rate, and was fighting after a gap of 3 months and 28 days. Corrales was on a 30-fight win streak with a 80% KO rate, and fighting after a layoff of 3 months and 14 days.
Diego Corrales made easy work of Derrick Gainer, stopping the challenger via TKO in the 3rd. Corrales improves his record to 31-0 (25 KOs), while Gainer adds a loss to his record at 33-5.
On June 15, 1996, a 23-year-old Derrick Gainer (17-3, 10 KOs) and a 28-year-old Kevin Kelley (43-1-2, 30 KOs) met in the ring in a featherweight bout.
Gainer came in to the fight on a 5-fight win streak with a 50% KO rate, and was fighting after a gap of 1 month and 6 days. Kelley was on a 1-fight win streak with a 65% KO rate, and fighting after a layoff of 4 months and 13 days.
Kevin Kelley stopped Derrick Gainer via KO in the 8th round. Kelley improves his record to 44-1-2 (31 KOs), while Gainer adds a loss to his record at 17-4.
On November 18, 1994, a 22-year-old Derrick Gainer (12-2, 6 KOs) and a 19-year-old Robert Garcia (16-0, 13 KOs) met in the ring.
Gainer came in to the fight on a 1-fight losing streak with a 42% KO rate, and was fighting after a gap of 1 month and 13 days. Garcia was on a 16-fight win streak with a 81% KO rate, and fighting after a layoff of 1 month and 25 days.
Robert Garcia defeated Derrick Gainer via unanimous decision in the 10-round fight. Garcia improves his record to 17-0, while Gainer adds a loss to his record at 12-3.
On October 5, 1994, a 22-year-old Derrick Gainer (12-1, 6 KOs) and Greg Torres met in the ring.
Gainer came in to the fight on a 10-fight win streak with a 46% KO rate, and was fighting after a gap of 15 days.
Derrick Gainer lost to Greg Torres via unanimous decision in the 10-round fight, and adds a loss to his record at 12-2.
On November 8, 1990, an 18-year-old Derrick Gainer (2-0, 1 KO) and Scott Phillips met in the ring.
Gainer came in to the fight on a 2-fight win streak with a 50% KO rate, and was fighting after a gap of 1 month and 14 days.
Derrick Gainer lost to Scott Phillips via split decision in the 6-round fight, and adds a loss to his record at 2-1.