On September 9, 2000, a 28-year-old Derrick Gainer (35-5, 22 KOs) got a shot at the WBA featherweight title held by 30-year-old Freddie Norwood (38-0-1, 22 KOs).
Gainer came in to the fight on a 2-fight win streak with a 55% KO rate, and was fighting after a gap of 1 month and 25 days. Norwood was on a 21-fight win streak with a 56% KO rate, and fighting after a layoff of 3 months and 15 days.
Derrick Gainer stopped the champion via KO in the 11th round of the 12-round world-title fight, winning the first world title of his career, and is crowned the new WBA featherweight champion. Gainer improves his record to 36-5 (23 KOs), while Norwood adds a loss to his record at 38-1-1.
On February 24, 2001, the 28-year-old WBA featherweight world champion, Derrick Gainer (36-5, 23 KOs), faced a 28-year-old Colombian boxer Victor Polo (29-2-2, 22 KOs), in a title defense fight.
Gainer came in to the fight on a 3-fight win streak with a 56% KO rate, and was fighting after a gap of 5 months and 15 days. Polo was on a 6-fight win streak with a 66% KO rate, and fighting after a layoff of 4 months and 4 days.
Derrick Gainer defeated Victor Polo via unanimous decision and successfully defended his WBA featherweight title. Gainer improves his record to 37-5, while Polo adds a loss to his record at 29-3-2.
On April 12, 2003, the 30-year-old WBA featherweight world champion, Derrick Gainer (38-5-1, 24 KOs), faced Oscar León, in a title defense fight.
Gainer came in to the fight after a draw in his last fight with a 54% KO rate, and was fighting after a gap of 7 months and 19 days.
Derrick Gainer defeated Oscar León via split decision and successfully defended his WBA featherweight title. Gainer improves his record to 39-5-1
On July 18, 1998, a 25-year-old Derrick Gainer (23-4, 16 KOs) and a 31-year-old Kevin Kelley (48-2-2, 32 KOs) met in the ring for the 2nd time,.
Gainer came in to the fight on a 6-fight win streak with a 59% KO rate, and was fighting after a gap of 1 month and 9 days. Kelley was on a 1-fight win streak with a 61% KO rate, and fighting after a layoff of 2 months and 10 days.
In the rematch, Derrick Gainer defeated Kevin Kelley via unanimous decision in the 10-round fight. Gainer improves his record to 24-4, while Kelley adds a loss to his record at 48-3-2.
On October 4, 1996, a 24-year-old Derrick Gainer (17-4, 10 KOs) and Patrick Simeon met in the ring in a featherweight bout.
Gainer came in to the fight on a 1-fight losing streak with a 47% KO rate, and was fighting after a gap of 3 months and 19 days.
Derrick Gainer stopped Patrick Simeon via TKO in the 2nd round. Gainer improves his record to 18-4 (11 KOs)
On November 30, 1993, a 21-year-old Derrick Gainer (8-1, 5 KOs) and Julian Flores met in the ring in a featherweight bout.
Gainer came in to the fight on a 6-fight win streak with a 55% KO rate, and was fighting after a gap of 10 months and 20 days.
Derrick Gainer defeated Julian Flores via unanimous decision in the 12-round featherweight fight. Gainer improves his record to 9-1
On September 30, 1995, a 23-year-old Derrick Gainer (14-3, 7 KOs) and Roberto Villareal met in the ring in a featherweight bout.
Gainer came in to the fight on a 2-fight win streak with a 41% KO rate, and was fighting after a gap of 3 months and 6 days.
Derrick Gainer stopped Roberto Villareal via KO in the 5th round. Gainer improves his record to 15-3 (8 KOs)
On September 10, 1999, a 27-year-old Derrick Gainer (30-4, 19 KOs) and Jay Cantu met in the ring.
Gainer came in to the fight on a 13-fight win streak with a 55% KO rate, and was fighting after a gap of 21 days.
Derrick Gainer stopped Jay Cantu via TKO in the 1st round. Gainer improves his record to 31-4 (20 KOs)
On March 22, 1994, a 21-year-old Derrick Gainer (9-1, 5 KOs) and Roy Simpson met in the ring.
Gainer came in to the fight on a 7-fight win streak with a 50% KO rate, and was fighting after a gap of 3 months and 22 days.
Derrick Gainer stopped Roy Simpson via TKO in the 1st round. Gainer improves his record to 10-1 (6 KOs)
On June 30, 1992, a 19-year-old Derrick Gainer (6-1, 4 KOs) and Carlos Vergara met in the ring.
Gainer came in to the fight on a 4-fight win streak with a 57% KO rate, and was fighting after a gap of 2 months and 28 days.
Derrick Gainer stopped Carlos Vergara via KO in the 1st round. Gainer improves his record to 7-1 (5 KOs)