On January 29, 2005, the 26-year-old IBF super-welterweight world champion, Kassim Ouma (20-1-1, 13 KOs), faced Kofi Jantuah, in a title defense fight.
Ouma came in to the fight on a 9-fight win streak with a 59% KO rate, and was fighting after a gap of 3 months and 27 days.
Kassim Ouma defeated Kofi Jantuah via unanimous decision and successfully defended his IBF super-welterweight title. Ouma improves his record to 21-1-1
On October 2, 2004, Kassim Ouma and Verno Phillips met again in a rematch.
Ouma came in to the fight on a 8-fight win streak with a 61% KO rate, and was fighting after a gap of 8 months and 29 days.
Kassim Ouma defeated Verno Phillips via unanimous decision in the rematch and wins the IBF title — in his first world-title fight. Ouma improves his record to 20-1-1
On December 9, 2006, a 27-year-old Kassim Ouma (25-2-1, 15 KOs) got a shot at the middleweight WBC, WBO, and The Ring title held by 28-year-old American boxer Jermain Taylor (25-0-1, 17 KOs).
Ouma came in to the fight on a 4-fight win streak with a 53% KO rate, and was fighting after a gap of 4 months and 4 days. Taylor was on a 0-fight win streak with a 65% KO rate, and fighting after a layoff of 5 months and 22 days.
Jermain Taylor defeated Kassim Ouma via unanimous decision and successfully defended his WBC, WBO, and The Ring middleweight titles. Taylor improves his record to 26-0-1, while Ouma adds a loss to his record at 25-3-1.
On September 25, 2010, a 31-year-old Kassim Ouma (26-7-1, 16 KOs) and Joey Gilbert met in the ring in a middleweight bout.
Ouma came in to the fight on a 2-fight losing streak with a 47% KO rate, and was fighting after a gap of 8 months and 9 days.
Kassim Ouma stopped Joey Gilbert via TKO in the 6th round. Ouma improves his record to 27-7-1 (17 KOs)
On January 3, 2004, a 25-year-old Kassim Ouma (18-1-1, 12 KOs) and Juan Carlos Candelo met in the ring.
Ouma came in to the fight on a 7-fight win streak with a 60% KO rate, and was fighting after a gap of 4 months and 12 days.
Kassim Ouma stopped Juan Carlos Candelo via TKO in the 10th round. Ouma improves his record to 19-1-1 (13 KOs)
On August 22, 2003, a 24-year-old Kassim Ouma (17-1-1, 11 KOs) and Carlos Bojorquez met in the ring.
Ouma came in to the fight on a 6-fight win streak with a 57% KO rate, and was fighting after a gap of 2 months and 23 days.
Kassim Ouma stopped Carlos Bojorquez via TKO in the 8th round. Ouma improves his record to 18-1-1 (12 KOs)
On January 15, 1999, a 20-year-old Kassim Ouma (6-0, 6 KOs) and Victor Ramos met in the ring in a super-welterweight bout.
Ouma came in to the fight on a 6-fight win streak with a 100% KO rate, and was fighting after a gap of 1 month and 26 days.
Kassim Ouma stopped Victor Ramos via TKO in the 5th round. Ouma improves his record to 7-0 (7 KOs)
On May 6, 2006, a 27-year-old Kassim Ouma (23-2-1, 15 KOs) and a 25-year-old Mexican boxer Marco Antonio Rubio (34-2-1, 30 KOs) met in the ring in a super-welterweight bout.
Ouma came in to the fight on a 2-fight win streak with a 57% KO rate, and was fighting after a gap of 3 months and 9 days. Rubio was on a 7-fight win streak with a 81% KO rate, and fighting after a layoff of 3 months and 9 days.
Kassim Ouma defeated Marco Antonio Rubio via split decision in the 12-round super-welterweight fight. Ouma improves his record to 24-2-1, while Rubio adds a loss to his record at 34-3-1.
On July 14, 2005, the 26-year-old IBF super-welterweight world champion, Kassim Ouma (21-1-1, 13 KOs), faced a 32-year-old Russian boxer Roman Karmazin (33-1-1, 21 KOs), in a title defense fight.
Ouma came in to the fight on a 10-fight win streak with a 56% KO rate, and was fighting after a gap of 5 months and 15 days. Karmazin was on a 4-fight win streak with a 58% KO rate, and fighting after a layoff of 3 months and 12 days.
Roman Karmazin defeated Kassim Ouma via unanimous decision and wins the IBF title — in his first world-title fight. Karmazin improves his record to 34-1-1, while Ouma adds a loss to his record at 21-2-1.
On January 27, 2006, a 27-year-old Kassim Ouma (22-2-1, 14 KOs) and Francisco Antonio Mora met in the ring in a super-welterweight bout.
Ouma came in to the fight on a 1-fight win streak with a 56% KO rate, and was fighting after a gap of 3 months and 14 days.
Kassim Ouma stopped Francisco Antonio Mora via TKO in the 8th round. Ouma improves his record to 23-2-1 (15 KOs)