On July 14, 2005, a 32-year-old Roman Karmazin (33-1-1, 21 KOs) got a shot at the IBF super-welterweight title held by 26-year-old Ugandan boxer Kassim Ouma (21-1-1, 13 KOs).
Karmazin came in to the fight on a 4-fight win streak with a 58% KO rate, and was fighting after a gap of 3 months and 12 days. Ouma was on a 10-fight win streak with a 56% KO rate, and fighting after a layoff of 5 months and 15 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 October 4, 2003, a 30-year-old Roman Karmazin (31-1-1, 20 KOs) and David Walker met in the ring in a super-welterweight bout.
Karmazin came in to the fight on a 2-fight win streak with a 60% KO rate, and was fighting after a gap of 3 months and 21 days.
Roman Karmazin stopped David Walker via TKO in the 3rd round. Karmazin improves his record to 32-1-1 (21 KOs)
On June 3, 2000, a 27-year-old Roman Karmazin (25-0-1, 17 KOs) and Orhan Delibaș met in the ring in a super-welterweight bout.
Karmazin came in to the fight on a 21-fight win streak with a 65% KO rate, and was fighting after a gap of 2 months and 24 days.
Roman Karmazin stopped Orhan Delibaș via RTD in the 3rd round. Karmazin improves his record to 26-0-1 (18 KOs)
On June 5, 2010, a 37-year-old Roman Karmazin (40-3-1, 26 KOs) got a shot at the middleweight IBF title held by 29-year-old German boxer Sebastian Sylvester (33-3, 16 KOs).
Karmazin came in to the fight on a 4-fight win streak with a 57% KO rate, and was fighting after a gap of 4 months and 28 days. Sylvester was on a 4-fight win streak with a 44% KO rate, and fighting after a layoff of 4 months and 6 days.
The fight ended in a split decision draw and both the fighters added a draw to their respective records — Karmazin is now 40-3-2 and Sylvester, 33-3-1.
On November 1, 1998, a 25-year-old Roman Karmazin (15-0-1, 10 KOs) and Bahre Ahmeti met in the ring for the 2nd time,.
Karmazin came in to the fight on a 11-fight win streak with a 62% KO rate, and was fighting after a gap of 29 days.
In the rematch, Roman Karmazin stopped Bahre Ahmeti via TKO in the 4th round. Karmazin improves his record to 16-0-1 (11 KOs)
On November 23, 2007, a 34-year-old Roman Karmazin (35-2-1, 22 KOs) and Alejandro García met in the ring in a super-welterweight bout.
Karmazin came in to the fight on a 1-fight win streak with a 56% KO rate, and was fighting after a gap of 10 months and 17 days.
Roman Karmazin stopped Alejandro García via KO in the 3rd round. Karmazin improves his record to 36-2-1 (23 KOs)
On March 21, 2009, a 36-year-old Roman Karmazin (37-3-1, 23 KOs) and Antwun Echols met in the ring in a middleweight bout.
Karmazin came in to the fight on a 1-fight win streak with a 54% KO rate, and was fighting after a gap of 3 months and 1 day.
Roman Karmazin stopped Antwun Echols via TKO in the 7th round. Karmazin improves his record to 38-3-1 (24 KOs)
On June 13, 2003, a 30-year-old Roman Karmazin (30-1-1, 19 KOs) and Michael Rask met in the ring in a super-welterweight bout.
Karmazin came in to the fight on a 1-fight win streak with a 59% KO rate, and was fighting after a gap of 4 months and 6 days.
Roman Karmazin stopped Michael Rask via KO in the 2nd round. Karmazin improves his record to 31-1-1 (20 KOs)
On February 7, 2003, a 30-year-old Roman Karmazin (29-1-1, 18 KOs) and Jorge Araujo met in the ring in a super-welterweight bout.
Karmazin came in to the fight on a 1-fight losing streak with a 58% KO rate, and was fighting after a gap of 6 months and 26 days.
Roman Karmazin stopped Jorge Araujo via TKO in the 5th round. Karmazin improves his record to 30-1-1 (19 KOs)
On December 20, 2008, a 35-year-old Roman Karmazin (36-3-1, 23 KOs) and Bronco McKart met in the ring in a middleweight bout.
Karmazin came in to the fight on a 1-fight losing streak with a 56% KO rate, and was fighting after a gap of 11 months and 1 day.
Roman Karmazin defeated Bronco McKart via unanimous decision in the 12-round middleweight fight. Karmazin improves his record to 37-3-1